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A Catalogue of Galactic Supernova Remnants
(1998 September version)

D.A. Green
Mullard Radio Astronomy Observatory Cavendish Laboratory Madingley Road Cambridge CB3 0HE UNITED KINGDOM
E-mail: D.A.Green@mrao.cam.ac.uk Please reference this catalogue as follows. · Green D.A., 1998, `A Catalogue of Galactic Supernova Remnants (1998 September version)', Mullard Radio Astronomy Observatory, Cambridge, UK (available on the World-Wide-Web at "http://www.mrao.cam.ac.uk/surveys/snrs/").

1. The Catalogue Format
This catalogue of Galactic supernova remnants (SNRs) is an updated version of those presented in detail in Green (1984, 1988), in summary form in Green (1991, 1996) -- hereafter Versions I, II, III and IV respectively -- and on the World-Wide-Web (Version V, 1995 July and a revised version in 1996 August). (Note that Version IV, although published in 1996, was produced in 1993.) This, the 1998 September version of the catalogue contains 220 SNRs (which is 5 more than in previous, 1996 August, version), with about thousand references in the detailed listings, plus notes on several dozen possible or probable remnants. For each remnant in the catalogue the following parameters are given. · Galactic Coordinates of the source centroid, quoted to the nearest tenth of a degree as is conventional. (Note: in this catalogue additional leading zeros are not used.) · Other Names that are commonly used for the remnant. These are given in parentheses if the remnant is only a part of the source. For some remnants, notably the Crab Nebula, not all common names are given. · Right Ascension and Declination of the source centroid. The accuracy of the quoted values depends on the size of the remnant; for small remnants they are to the nearest few seconds of time and the nearest minute of arc respectively, whereas for larger remnants they are rounded to coarser values, but are in every case sufficient to specify a point within the boundary of the remnant. These coordinates are almost always deduced from radio maps rather than from X-ray or optical observations, and are for B1950.0. · Angular Size of the remnant, in arcminutes, usually taken from the highest resolution radio map available, although for some barely resolved sources that are thought to be SNRs the only available size is that from Gaussian models after deconvolution with the observed beam size. The boundary of most remnants approximates reasonably well to a circle or an ellipse; a single value is quoted for the angular size of the more nearly circular remnants, which is the diameter of a circle with an area equal to that of the remnant, but for elongated remnants the product of two values is quoted, and these are the major and minor axes of the remnant boundary modelled as an ellipse. In a few cases an ellipse is not a satisfactory description of the boundary of the object (refer to the description of the individual object given in its catalogue entry), although an angular size is still quoted for information. For `filled-centre' remnants the size quoted is for the largest extent of the observed radio emission, not, as at times has been used by others, the half-width of the centrally brightened peak.

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· Flux Density of the remnant at 1 GHz in jansky. This is not a measured value, but is deduced from the observed radio frequency spectrum of the source. The frequency of 1 GHz is chosen because flux density measurements at frequencies both above and below this value are usually available. · Spectral Index of the integrated radio emission from the remnant, (here defined in the sense, S - , where S is the flux density at a frequency ), either a value that is quoted in the literature, or one deduced from the available integrated flux densities of the remnant. For several SNRs a simple power law is not adequate to describe their radio spectra, either because there is evidence that the integrated spectrum is curved or the spectral index varies across the face of the remnant. In these cases the spectral index is given as `varies' (refer to the description of the remnant and recent references in the catalogue entry for more information). In some cases, for example where the remnant is highly confused with thermal emission, the spectral index is given as `?' since no value can be deduced with any confidence. · Type of the SNR, either `S', `F' or `C' if the remnant shows a `shell', `filled-centre' or `composite' (or `combination') radio structure (or `S?', `F?' or `C?', respectively, if there is some uncertainty), or `?' in several cases where an object is conventionally regarded as an SNR even though its nature is poorly known or not well understood. (Note: the term `composite' has been used in a different sense by some authors, to describe SNRs with shell radio and centrally-brightened X-ray morphologies. An alternative, recent term used to describe such remnants is `mixed morphpology', see Rho & Petre 1998.) In the detailed listings, for each remnant, notes on a variety of topics are given. First, it is noted if other Galactic coordinates have at times been used to label it (usually before good observations have revealed the full extent of the object), if the SNR is thought to be the remnant of a historical SN, or if the nature of the source as an SNR has been questioned (in which case an appropriate reference is usually given later in the entry). Brief descriptions of the remnant from the available radio, optical and X-ray observations as applicable are then given, together with notes on available distance determinations, and any point sources or pulsars in the field of the object (although they may not necessarily be related to the remnant). Finally, appropriate references to observations are given for each remnant, complete with journal, volume, page, and a short description of what information each paper contains (for radio observations these include the telescopes used, the observing frequencies and resolutions, together with any flux density determinations). These references are not complete, but cover representative and recent observations of the remnant, and they should themselves include references to earlier work. The references do not generally include large observational surveys -- of particular interest in this respect are: the Effelsberg 100-m survey at 2.7 GHz of ¨ the Galactic plane 358 < l < 240 , |b| < 5 by Reich et al. (1990) and Furst et al. (1990); reviews of the radio spectra of some SNRs by Kassim (1989) and by Kovalenko, Pynzar' & Udal'tsov (1994); the Parkes 64-m survey at 2.4 GHz of the Galactic plane 238 < l < 365 , |b| < 5 by Duncan et al. (1995) and Duncan et al. (1997); reviews of Einstein X-ray imaging and spectroscopic observations of Galactic SNRs by Seward (1990) and Lum et al. (1992) respectively; surveys of IRAS observations of SNRs and their immediate surroundings by Arendt (1989) and by Saken, Fesen & Shull (1992); the survey of HI emission towards SNRs by Koo & Heiles (1991), and the catalogue by Fesen & Hurford (1996) of UV/optical/infra-red lines identified in SNRs. A summary of the data available for all 220 remnants in the catalogue is given in Table I. The other names for SNRs are listed in Table II, and the abbreviations for journals, proceedings and telescopes are listed in Table III. The detailed listings for each SNR are given in Table IV.

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2. Revisions and Notes

2.1 Objects no longer thought to be SNRs
The following objects, which were listed in Version I of the catalogue were removed because they were no longer thought to be remnants, or are poorly observed (see Version II for references and further details): G2.4+1.4 (see also Gray 1994a; Goss & Lozinskaya 1995; Polcaro et al. 1995), G41.9-4.1 (=CTB 73, PKS 1920+06), G47.6+6.1 (=CTB 63), G53.9+0.3 (part of HC40), G93.4+1.8 (=NRAO 655), G123.2+2.9, G194.7+0.4 (the Origem Loop), G287.8-0.5 (see below), G322.3-1.2 (=Kes 24) and G343.0-6.0 (see below). G350.1-0.3, which was listed in Version II of the catalogue, was removed as it is no longer thought to be a SNR (see Version III for details). G358.4-1.9, which was listed in Version IV of the catalogue, was removed, as following the discussion of Gray (1994a), as it is not clear that this is a SNR. G240.9-0.9, G299.0+0.2 and G328.0+0.3, which were listed in Version V of the catalogue, were removed from the 1996 August version, following the improved observations of Duncan et al. (1996) and Whiteoak & Green (1996). No objects listed in the previous, 1996 August, version of the catalogue have since been removed (but note also that G350.0-1.8 is now incorporated into G350.0-2.0, and that G337.0-0.1 refers to a smaller remnant than that previously catalogued with the same name, see below). The following objects, which have been reported as SNRs, but have not been included in any of the versions of the SNR catalogue, have subsequently been shown not to be SNRs. · G70.7+1.2, which was reported as a SNR by Reich et al. (1985), but this has not been confirmed by later observations (see Green 1986; de Muizon et al. 1988; Becker & Fesen 1988; Caswell 1988; Bally et al. 1989; Phillips, Onello & Kulkarni 1993; Onello et al. 1995). · G81.6+1.0 a possible SNR in W75 reported by Ward-Thompson & Robson (1991). From the published data (see the observations in Wendker, Higgs & Landecker 1991) it was noted in Version IV of the catalogue that this is thermal source not a SNR, because of its thermal radio spectrum, and high infrared-to-radio emission (see also the subsequent discussion by Wendker et al. 1993). · Green & Gull (1984) suggested that G227.1+1.0 as a very young SNR, but subsequent observations (Channan et al. 1986; Green & Gull 1986) have shown that this is most likely an extragalactic source, not an SNR. · A candidate SNR, G274.7-2.8, identified by Helfand & Channan (1989), has been shown not to be a SNR by Caswell & Stewart (1991). · G25.5+0.2, which was reported as a very young SNR by Cowan et al. (1989), although this identification was not certain (see White & Becker 1990; Green 1990; Zijlstra 1991). Sramek et al. (1992) report the detection of recombination lines from this source (also see Subrahmanyan et al. 1993). Becklin et al. (1994) identify G25.5+0.2 as a ring nebula around a luminous blue star. · Most of the possible SNRs listed by Gorham (1990) -- following up SNR candidates suggested by Kassim (1988) -- have been shown not to be SNRs by Gorham, Kulkarni & Prince (1993). Some entries in the catalogue have been renamed, due to improved observations revealing a larger true extent for the object (previously G5.3-1.0 is now G5.4-1.2; G193.3-1.5 is now G192.8-1.1; G308.7+0.0 is now incorporated into G308.8-0.1). In this version of the catalogue, G337.0-0.1 now refers to a small (1.5 arcmin) remnant, rather than larger supposed remnant at this position (see Sarma et al. 1997), and G350.0-2.0 now incorporates the previously catalogued G350.0-1.8, based on the improved observations of Gaensler (1998).

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2.2 New SNRs
The following remnants were added to Version II of the catalogue: G0.9+0.1, G1.9+0.3, G5.9+3.1, G6.4+4.0, G8.7-0.1, G16.8-1.1, G18.9-1.1, G20.0-0.2, G27.8+0.6, G30.7+1.0, G31.5-0.6, G36.6-0.7, G42.8+0.6, G45.7-0.4, G54.1+0.3, G73.9+0.9, G179.0+2.6, G312.4-0.4, G357.7+0.3 and G359.1-0.5. The following remnants were added to Version III of the catalogue: G4.2-3.5, G5.2-2.6, G6.1+1.2, G8.7-5.0, G13.5+0.2, G15.1-1.6, G16.7+0.1, G17.4-2.3, G17.8-2.6, G30.7-2.0, G36.6+2.6, G43.9+1.6, G59.8+1.2, G65.1+0.6, G68.6-1.2, G69.7+1.0, G279.0+1.1, G284.3-1.8 (=MSH 10-53), G358.4-1.9 and G359.0-0.9. The following remnants were added to Version IV of the catalogue: G59.5+0.1, G67.7+1.8, G84.9+0.5, G156.2+5.7, G318.9+0.4, G322.5-0.1, G343.1-2.3, and G348.5-0.0. The following remnants were added to Version V of the catalogue: G1.0-0.1, G1.4-0.1, G3.7-0.2, G3.8+0.3, G28.8+1.5, G76.9+1.0, G272.2-3.2, G341.2+0.9, G354.1+0.1, G355.6-0.0, G356.3-0.3, G356.3-1.5 and G359.1+0.9. The following remnants were added to the 1996 August version of the catalogue: G13.3-1.3 G286.5-1.2, G289.7-0.3, G294.1-0.0, G299.2-2.9 G299.6-0.5, G301.4-1.0, G308.1-0.7, G310.6-0.3, G310.8-0.4, G315.9-0.0, G317.3-0.2, G318.2+0.1, G320.6-1.6, G321.9-1.1, G327.4+1.0, G329.7+0.4, G342.1+0.9, G343.1-0.7, G345.7-0.2, G349.2-0.1, G351.7+0.8, G351.9-0.9 and G354.8-0.8. The following remnants have been added to this version of the catalogue. · G0.3+0.0, which has previously been suggested as a SNR by various authors, which has been clearly identified as a SNR at radio wavelengths by Kassim & Frail (1996). · G32.1-0.9, a new SNR identified in X-rays by Folgheraiter et al. (1997). · G55.0+0.3, which was suggested as a possible SNR (G55.2+0.2) by Taylor, Wallace & Goss (1992), has been confirmed as an old, faint remnant from radio observations by Matthews, Wallace & Taylor (1998). · G63.7+1.1, which was suggested as a possible SNR by Taylor, Wallace & Goss (1992), has been confirmed as a filled-centre SNR by Wallace, Landecker & Taylor (1997). ¨ · G182.4+4.3, identified from radio observations by Kothes, Furst & Reich (1998).

2.3 Possible and probable SNRs not listed in the catalogue
The following are possible or probable SNRs for which further observations are required to confirm their nature or parameters, or for which observations are not yet in the published literature. · · · ·

· ·

2.3.1 Radio A possible SNR near the Galactic centre reported by Ho et al. (1985) from radio observations. Gosachinski (1985) reported evidence for non-thermal radio emission, presumably from SNRs, associated i with several bright, thermal Galactic sources (also see Odegard 1986, who questions the reliability of some of Gosachinski s results). i' G300.1+9.4, a possible SNR nearly 2 in diameter reported by Dubner, Colomb & Giacani (1986) from radio observations. Routledge & Vaneldik (1988) report a possible faint shell SNR nearly 2 in diameter at radio wavelengths, ´ ´ near the young pulsar PSR 1930+22 (see also Gomez-Gonzalez & del Romero 1983, who report a smaller (about 40 arcmin) possible SNR (G57.1+1.7) associated with this pulsar, and see Caswell, Landecker & Feldman 1985 and Kovalenko 1989). G28.6-0.2, a possible SNR reported by Helfand et al. (1989) from radio observations. Five possible remnants (G45.9-0.1, G71.6-0.5, G72.2-0.3, G83.0-0.2 and G85.2-1.2) of the eleven reported by Taylor, Wallace & Goss (1992) from a radio survey of part of the Galactic plane. (Three of the other possible SNRs reported by Taylor et al., are included in the catalogue as G55.0+0.3, G63.7+1.1 and G76.9+1.0.)

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· A faint, poorly defined possible remnant G41.1+1.2 reported by Gorham, Kulkarni & Prince (1993) from radio observations. · G9.7-0.1, a possible SNR report by Frail, Kassim & Weiler (1994) from radio observations. · G355.4+0.7, G356.6+0.1, G357.1-0.2, G358.1+1.0, G358.5-0.9, G358.7+0.7, G359.2-1.1, G3.1-0.6 and G4.2+0.0, which are among the possible SNRs listed by Gray (1994b) from radio observations near the Galactic centre. · G104.7+2.8, a possible SNR reported by Green & Joncas (1994) from radio observations. However, recent observations at 10.7 GHz (W. Reich, private communication) cast doubt on this identification, as they do not support a non-thermal radio spectrum for the source. · G310.6-0.2 and G310.8-0.4, two possible radio SNRs listed by Whiteoak, Cram & Large (1994). · G11.2-1.1, a possible SNR listed by Kovalenko, Pynzar' & Udal'tsov (1994), based on unpublished radio studies (Trushkin 1988, preprint). · Duncan et al. (1995) and Duncan et al. (1997) list several large-scale (1.5 to 10 degree), and smaller, low radio surface-brightness candidate SNRs from the Parkes 2.4-GHz survey of 270 < l < 360 . · Whiteoak & Green (1996), from their radio survey of much of the southern Galactic plane, list 16 possible SNRs (G308.4-1.4, G317.5+0.9, G319.9-0.7, G320.6-0.9, G322.7+0.1, G322.9-0.0, G323.2-1.0, G324.1+0.1, G325.0-0.3, G331.8-0.0, G337.2+0.1, G339.6-0.6, G345.1+0.2, G345.1-0.2, G348.8+1.1 and G350.1-0.3). · G359.87+0.18, a possible young SNR near the Galactic Centre reported by Yusef-Zadeh, Cotton & Reynolds (1998). · Several candidate SNRs reported by Combi & Romero (1998), Combi, Romero & Arnal (1998) and Combi, Romero & Benaglia (1998).

2.3.2 UV/Optical/Infra-red · G343.0-6.0 was listed in Version I as a SNR, identified optically by Meaburn & Rovithis (1977). However, it was removed from the catalogue in Version II as its extent is uncertain, and it has not been identified at other wavelengths (also see Bedford et al. 1984 and Meaburn et al. 1991). · A possible SNR overlapping G296.1-0.5, identified from optical (and X-ray) observations by Hutchings, Crampton & Cowley (1981). · A SNR (G260.4-3.3) about 4 arcmin in diameter within the Puppis A remnant identified optically by Winkler et al. (1989). This has not been detected at radio wavelengths (see Dubner et al. 1991). · A possible SNR (G32.1+0.1) reported from optical spectroscopy by Thompson, Djorgovski & de Carvalho (1991), following up radio and infrared observations of Jones, Garwood & Dickey (1988). · G203.2-12.3, a optical ring about 3 arcmin in diameter, which was identified as a SNR by Winkler & Reipurth (1992). · G75.5+2.4, a possible large (about 2 ) old SNR in Cygnus suggested by Nichols-Bohlin & Fesen (1993) from infra-red and optical observations (see also Dewdney & Lozinskaya 1994; Marston 1996; Esipov et al. 1996). · A possible optical SNR (G247.8+4.9) noted by Weinberger (1995), which may be Balmer dominated (see also Weinberger et al. 1998). · An optical shell around the Coalsack Nebula (near l = 300 , b = 0 ) identified by Walker & Zealey (1998). This coincides with on the the large possible SNRs suggested by Duncan et al. (1995), from radio observations.

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· · · · · · · ·

2.3.3 X-ray H1538-32 a large X-ray source in Lupus, near l = 307 , b = +20 (Riegler, Agrawal & Gull 1980, see also Colomb, Dubner & Giacani 1984) which is a possible old SNR; The Monogem ring, near l = 203 , b = +12 , is a possible old SNR (see Nousek et al. 1981, Plucinsky et al. 1996, and references therein). X-ray emission in the Gum Nebula near l = 250 , b = 0 (Leahy, Nousek & Garmire 1992, see also Reynolds 1976, Dubner et al. 1992 and Duncan et al. 1996) which, together with optical spectroscopy indicate the existence of a possible old remnant in this region. An X-ray enhancement near l = 200 , b = -40 , which is possibly due due to an old SNR in Eridanus (Naranan et al. 1976, see also Burrows et al. 1993 and Snowden et al. 1995). G189.6+3.3, a faint, possible SNR overlapping G189.1+3.0 (=IC443) identified by Asaoka & Aschenbach (1994) from ROSAT X-ray observations. G117.7+0.6, a faint shell of soft X-ray emission near CTB1 (=G116.9+0.2), which contains a pulsar (Hailey & Craig 1995). A possible SNR identified in X-rays around the pulsar B1828-13 (see Finley, Srinivasan & Park 1996). A shell SNR near l = 347 , b = 0 suggested by Pfeffermann & Aschenbach (1996) (see also Koyama et al. 1997).

2.3.4 Other · G287.8-0.5, which is associated with Carinae, was listed in Version I as a SNR, but was removed from the catalogue in Version II as its parameters are uncertain (see Jones 1973, Retallack 1984, Tateyama, Strauss & Kaufmann 1991, and the discussion in Version II). · G359.2-0.8 (the `mouse'), near the Galactic centre, which has been suggested as being analogous to the central region of CTB 80 (=G69.0+2.7) by Predehl & Kulkarni (1995).
Finally, it should be noted that some radio loops in the Galactic plane (see, for example, Berkhuijsen 1973) may be parts of very large, old SNRs, but they have not been included in the catalogue (see also Combi et al. 1995; Maciejewski et al. 1996).

2.4 Questionable SNRs listed in the catalogue
As noted in Versions II and IV of the catalogue, the following sources are listed as SNRs, although, as discussed in each case, the identifications are not certain: G5.4-1.2, G39.7-2.0 (=W50), G65.7+1.2 (=DA 495), G69.0+2.7 (=CTB 80), G318.9+0.4 and G357.7-0.1. The nature of G76.9+1.0 (an unusual radio source similar to G65.7+1.2 (=DA 495)), and of G354.1+0.1 (which appears may be similar to G357.7-0.1 (=MHS 17-39)) are also uncertain (see Landecker, Higgs & Wendker 1993 and Frail, Goss & Whiteoak 1994 respectively). There are also some objects that have been identified as SNRs and are listed in the catalogue, although they have been barely resolved in the available observations, or are faint, and have not been well separated from confusing background or nearby thermal emission, and their identification as SNRs, or at least their parameters remain uncertain.

Acknowledgements
I am grateful to the many colleagues who have commented previous version of the catalogue, and have brought errors and omissions to my attention. No doubt errors remain in this version, and I am always happy to receive feedback from users of the catalogue. I thank Maki Kasahara for her help with the literature searches required for this version of the catalogue.This research has made use of the Bath Information & Data Services (BIDS) ISI database and NASA's Astrophysics Data System (ADS) Abstract Service.

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Green Green Green Green Green Green

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­ ix ­

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1998 September


Table I l b RA (1950.0) Dec (h m s) ( ) 17 17 17 17 17 17 17 17 18 17 18 17 17 17 17 17 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 18 42 43 44 46 46 45 52 49 05 27 04 59 44 51 57 42 14 21 02 02 05 08 07 09 16 11 21 16 18 22 28 30 21 27 25 30 30 30 32 30 36 31 38 37 36 33 05 12 20 30 37 20 50 45 42 25 00 20 55 30 10 20 05 35 10 40 30 50 15 30 20 05 00 05 30 05 00 10 00 20 47 00 30 00 20 00 30 40 06 30 -28 -28 -28 -28 -27 -27 -25 -25 -27 -21 -25 -24 -22 -23 -23 -21 -24 -23 -21 -20 -20 -19 -19 -18 -18 -17 -16 -15 -14 -14 -14 -14 -12 -13 -11 -10 -10 -09 -08 -08 -07 -07 -04 -04 -02 size /arcmin type

­I­ Flux at 1 GHz/Jy 100? 22 18? 15 2? 0.6 2.3 4? 3.2? 19 2.6? 35? 3.3? 4.0? 310 1.3? 11 4.4 80 3.9 2.9 22 6 3.5 ? 3.5? 5.5? 5 3.0 2? 4.8? 4.0? 33 37 10 6 69 33 70 8? 8 20? 6 30 ? spectral index 0.8? 0.6 varies 0.6? ? 0.7 0.65 ? 0.6? 0.64 0.6? 0.2? 0.4? 0.3? varies 0.4? 0.32 0.3 0.5 0.5 0.8 0.49 0.5 0.7 ? 1.0? 0.8? 0.6? 0.6 ? 0.8? 0.3? 0.4 varies 0.0 0.0 0.5 0.6 0.5 0.3 0.5 0.2? 0.68 varies 0.4? other name(s) Sgr A East

Summary listings

0 0 0 1 1 1 3 3 4 4 5 5 5 6 6 6 7 8 8 9

.0 .3 .9 .0 .4 .9 .7 .8 .2 .5 .2 .4 .9 .1 .4 .4 .7 .7 .7 .8 .0 .2 .4 .0 .3 .5 .1 .9 .7 .8 .4 .8 .8 .9 .0 .5 .8 .7 .3 .6 .7 .7 .4 .8 .8

+0.0 +0.0 +0.1 -0.1 -0.1 +0.3 -0.2 +0.3 -3.5 +6.8 -2.6 -1.2 +3.1 +1.2 -0.1 +4.0 -3.7 -5.0 -0.1 +0.6 -0.3 -0.3 -0.1 -0.1 -1.3 +0.2 -1.6 +0.2 +0.1 -1.1 -2.3 -2.6 +0.3 -1.1 -0.2 -0.9 -0.6 -0.2 -0.3 +0.3 -0.6 +0.6 +0.0 +0.6 +1.5

59 3.5 â 2.5 37 15 â 8 08 8 25 8 45 10 09 50 27 04 27 45 55 15 05 25 20 05 50 25 14 26 26 06 38 01 1.2 11 â 14 18 28 3 18 35 20 30 â 26 42 31 22 26 45 12 8? 4 8 7? 70 â 40

S S C S S S S S? S S S C? S F C S S S S? S ? C S? ? S? S S S? C ? S S S C? F F S S? S ? S? C? S F S?

Kepler, SN1604, 3C358 Milne 56

W28 1814-24 (W30)

10 11 11 12 13 13 15 15 16 16 17 17 18 18 20 21 21 22 23 23 24 24 27 27 28

13 5â4 36 30 â 24 03 7â5 21 4 48 30 â 24? 54 41 25 00 37 37 10 15 50 15 35 07 59 28 40 24? 24 17 â 11 33 10 1.2 20 26 27 10? 15? 30 â 15 4 50 â 30 100?

Kes 67

Kes 69 W41

4C-04.71

1998 September


Table I l b RA (1950.0) Dec (h m s) ( ) 18 18 18 18 18 19 18 18 18 18 18 18 18 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 20 19 20 20 20 20 20 20 20 43 51 42 48 46 03 50 48 51 50 53 58 46 01 10 04 05 04 08 03 14 15 21 36 28 31 30 19 32 40 36 45 52 31 50 52 06 51 00 12 49 14 20 19 17 48 50 10 35 50 00 30 50 12 15 30 05 20 40 00 45 08 55 44 30 05 50 30 30 18 10 00 10 50 25 50 50 30 00 10 34 40 30 45 20 00 10 30 00 30 -03 -02 -01 -01 -00 -03 -01 -00 -00 +00 +01 +02 +04 +05 +04 +06 +07 +09 +09 +10 +11 +12 +14 +17 +18 +18 +19 +21 +21 +23 +24 +27 +28 +31 +29 +31 +30 +32 +32 +36 +30 +37 +38 +40 +45 02 58 35 35 59 00 12 12 05 37 size /arcmin 3 16 24 â 18 18? 5â7 60? 40? 17 18 10 type

­ II ­ Flux at 1 GHz/Jy 10 0.5? 6 2? 24 22? ? 11? 3.5 22 230 ? 0.7? 18 85? 11 22 3? 38 8.6? 4.2? 14 160? 8 0.5 28 0.5? 1.4 1.8? 3? 1.6 1.8 6 52? 5.1 1.4 0.7? 120? 1.6 9? 210 9 2 340 120? spectral index 0.7 0.7? 0.4 ? 0.55 0.5? ? 0.2? varies 0.5 0.30 ? 0.5? 0.6 0.7? 0.5 0.48 0.5? 0.48 0.2? 0.4? 0.5 0.3? 0.75 0.1 0.5 0.5? 0.6 ? ? 0.5 0.3 0.6 0.6? 0.6 0.3 0.0? varies 0.8 0.3? varies varies 0.6 0.5 0.5? other name(s) Kes 75

Summary listings

29 30 30 31 31 32 32 32 33 33

.7 .7 .7 .5 .9 .0 .1 .8 .2 .6

-0.3 -2.0 +1.0 -0.6 +0.0 -4.9 -0.9 -0.1 -0.6 +0.1 -0.4 -0.7 +2.6 -0.3 -2.0 -0.5 -0.3 +0.6 -0.2 +1.6 -0.4 -0.3 -0.7 -2.2 +0.3 -0.3 +0.3 +3.4 +0.8 +0.1 +1.2 +1.1 +0.6 +5.7 +1.2 +1.8 -1.2 +2.7 +1.0 +0.9 -8.5 +1.2 +1.0 +2.1 +5.3

C ? S? S? S S? C? S? S S S S? S S ? S S S S S? S S S? S F? S S S S? S ? F S S? ? S ? ? S S? S F ? S S

3C391 3C396.1 Kes 78 Kes 79, 4C00.70, HC13 W44, 3C392

34.7 36.6 36.6 39.2 39.7 40.5 41.1 42.8 43.3 43.9 45.7 46.8 49.2 53.6 54.1 54.4 55.0 55.7 57.2 59.5 59 63 65 65 65 67 68 69 69 73 .8 .7 .1 .3 .7 .7 .6 .0 .7 .9

18 35 â 27 52 25? 23 17 â 13? 23 8â6 50 120 â 60 26 22 03 4.5 â 2.5 00 24 01 4â3 25 60? 04 04 00 08 46 22 17 â 13 30 28 â 33 1.5

3C396, HC24, NRAO 593 W50, SS433 3C397 W49B

(HC30) (W51) 3C400.2, NRAO 611 (HC40)

50 40 45 15 â 20? 38 23 50 12? 28 5 12 20 â 16? 37 8 25 90 â 50 05 310 â 240 18 18 21 9 28 28 â 25? 45 80? 35 16 03 22? 30 230 â 160 03 8â6 33 9 â 12 15 60 20 95 â 65

(4C21.53)

DA 495

CTB 80

74.0 74.9 76.9 78.2 82.2

Cygnus Loop CTB 87 DR4, Cygni W63

1998 September


Table I l b RA (1950.0) Dec (h m s) ( ) 20 20 20 20 21 21 22 23 23 23 23 23 23 00 00 01 01 02 02 04 04 04 05 05 05 05 06 05 06 06 06 06 06 08 09 08 09 09 10 10 10 11 11 11 11 51 48 43 51 27 23 59 21 13 34 51 56 52 04 22 18 25 01 14 05 54 57 23 15 50 36 05 31 14 06 36 46 43 20 02 32 05 56 16 33 59 01 09 22 32 30 45 30 00 45 10 30 10 40 45 20 40 30 00 30 30 00 55 00 30 40 00 00 30 30 00 00 30 00 30 00 00 10 30 20 30 15 00 30 50 10 00 45 20 40 +43 +44 +50 +55 +50 +51 +58 +58 +61 +61 +62 +62 +67 +72 +63 +64 +62 +64 +62 +48 +51 +46 +42 +41 +31 +27 +29 +21 +22 +17 +06 +06 +00 -42 -38 -45 -51 -53 -58 -59 -60 -60 -60 -59 -60 size /arcmin type

­ III ­ Flux at 1 GHz/Jy 11 0.8 220 9 65 15 20 2720 7? 6? 11? 9? 30? 36 56 7 13 33 45 16? 5 110 7? 11 7 65 1.2 1040 160 20? 160 6 15? 130 10? 1750 0.4 30? 11? 1.4? 6.2 42 16 15 5? spectral index 0.5 0.4 0.40 0.54 0.3 0.44 0.50 0.77 0.6? 0.3? 0.8? 0.5? 0.5? 0.6 0.61 varies 0.6 0.10 0.6 0.7? 0.5 0.6 0.4? 0.5 0.4 varies 0.4 0.30 0.36 0.6? 0.5 0.5 0.5? 0.5 0.4? varies 0.6 0.6? 0.3? ? 0.2? 0.4 0.29 0.4 0.6? other name(s)

Summary listings

84 84 89 93 93

.2 .9 .0 .3 .7

-0.8 +0.5 +4.7 +6.9 -0.2 +1.0 -1.0 -2.1 +1.2 +0.3 +1.1 +0.2 +5.0 +10.2 +1.4 +1.6 +0.5 +3.1 +1.3 -1.2 +5.7 +2.6 +4.3 +2.5 +2.6 -1.7 +4.3 -5.8 +3.0 -1.1 +0.5 +2.3 -1.1 -3.4 +5.5 -3.3 -3.2 +1.1 -1.8 -1.2 -0.3 -0.8 -0.1 +1.8 +0.6

16 20 â 16 42 6 25 120 â 90 10 27 â 20 35 80 40 37 32 30 38 30 â 25 28 5 30? 90 â 55

S S S S S S S S S? S S S S? S S S? S F S S? S S S S S? S S F S S S S? S? S S C S? S S S? S S C C? C

HB21 DA 530, 4C(T)55.38.1 CTB 104A, DA 551 3C434.1 CTB 109 Cassiopeia A, 3C461

94.0 109.1 111.7 112.0 114.3 116.5 116.9 117.4 119.5 120.1 126.2 127.1 130.7 132.7 152.2 156.2 160.9 166.0 166.2 179.0 180.0 182.4 184.6 189.1 192.8 205.5 206.9 211.7 260.4 261.9 263.9 272.2 279.0 284.3 286.5 289.7 290.1 291.0 292.0 293.8

58 80 â 60 10 34 30 60 â 80? 30 90? 52 8 00 55 35 30 24 70 45 9â5 80 110?

CTB 1 CTA 1 Tycho, 3C10, SN1572 R5 3C58, SN1181 HB3

47 110 36 140 â 120 52 55 â 35 50 90 â 70 05 70 50 00 59 36 20 30 30 24 50 30 35 50 00 45 26 02 40 22 00 37 180 50 7â5 45 78 220 60 â 40 70? 60 â 50 40 â 30 255 15? 95 24? 26 â 6 18 â 14 19 â 14 15 â 13 12 â 8 20

HB9 VRO 42.05.01 OA 184 S147 Crab Nebula, 3C144, SN1054 IC443, 3C157 PKS 0607+17 Monoceros Nebula PKS 0646+06 Puppis A, MSH 08-44 Vela (XYZ)

MSH 10-53

MSH 11-61A (MSH 11-62) MSH 11-54

1998 September


Table I l b RA (1950.0) Dec (h m s) ( ) 11 11 12 11 12 12 12 12 12 12 13 13 13 13 13 14 14 14 14 14 14 14 14 14 14 14 15 15 15 15 15 15 15 15 15 15 14 15 15 15 15 16 16 16 16 33 48 07 56 10 11 12 19 35 42 02 34 39 43 47 01 03 02 09 39 32 34 37 45 51 54 10 21 19 16 19 24 49 50 44 43 59 51 57 05 57 09 13 11 24 50 40 00 00 00 00 30 00 00 55 50 10 00 00 00 40 40 00 20 00 10 40 40 50 00 40 30 50 50 45 30 50 00 30 30 00 35 40 30 00 20 30 45 30 00 -61 -62 -52 -62 -62 -62 -65 -62 -63 -61 -62 -62 -62 -62 -61 -62 -62 -61 -61 -62 -60 -59 -59 -59 -58 -58 -58 -59 -58 -57 -56 -56 -56 -55 -53 -53 -41 -53 -52 -39 -51 -50 -50 -50 -48 22 17 10 18 35 20 13 52 33 52 size /arcmin 40 37 â 25 90 â 65 20 â 14 5? 12 â 9 18 â 11 13 37 â 23 17 type

­ IV ­ Flux at 1 GHz/Jy >2? 8? 48 9 5? 5? 0.5? 1.0? 2.1? 5? 14 1.2? 15? 7? 17 5? 6? 3? 45 49 8 0.8? 20? 4.7? >3.9? 4? 60? ? >3.4? 13 1.5 3? 145 7? 30? 1.9? 19 16? >34? 350? 5? 8? 28 26 16 spectral index ? 0.6? 0.5 0.6 0.4? 0.3 ? ? ? 0.4? 0.5 ? 0.4? 0.4? 0.5 ? ? 0.5 0.36 0.6 0.4 ? 0.4 ? ? 0.2? 0.4 ? ? 0.3 0.4 0.4? varies ? 0.6 ? 0.6 0.2 ? 0.5? 0.3 0.5 0.5 0.5 0.5 Kes 17 other name(s)

Summary listings

294.1 296.1 296.5 296.8 298.5 298.6 299.2 299.6 301.4 302.3 304.6 308.1 308.8 309.2 309.8 310.6 310.8 311.5 312.4 315.4 315.4 315.9 316.3 317.3 318.2 318.9 320.4 320.6 321.9 321.9 322.5 323.5 326.3 327.1 327.4 327.4 327.6 328.4 329.7 330.0 330.2 332.0 332.4 332.4 335.2

-0.0 -0.5 +10.0 -0.3 -0.3 -0.0 -2.9 -0.5 -1.0 +0.7 +0.1 -0.7 -0.1 -0.6 +0.0 -0.3 -0.4 -0.3 -0.4 -2.3 -0.3 -0.0 -0.0 -0.2 +0.1 +0.4 -1.2 -1.6 -1.1 -0.3 -0.1 +0.1 -1.8 -1.1 +0.4 +1.0 +14.6 +0.2 +0.4 +15.0 +1.0 +0.2 -0.4 +0.1 +0.1

S S S S ? S S S S S S S C? S S S S S S S ? S S S S C C S S S C S C C S S S F S S S? S S S S

PKS 1209-51/52 1156-62

26 8 49 13 08 20 â 30? 39 15 â 12 50 25 â 19 23 31 44 29 17 23 58 47 34 51 17 58 27 02 23 55 11 00 00 40 11 44 08 11 30 26 45 55 35 40 8 12 5 38 42 24 â 13 25 â 14 29 â 14 11 40 â 35 30 â 14 35 60 â 30 28 31 â 23 15 13 38 18 21 14 30 6 40 â 33 180? 11 12 10 15 21

Kes 20B Kes 20A

RCW 86, MSH 14-63

(MSH 14-57)

MSH 15-52, RCW 89

MSH 15-56 Kes 27 SN1006, PKS 1459-41 (MSH 15-57) Lupus Loop

RCW 103 MSH 16-51, Kes 32

1998 September


Table I l b RA (1950.0) Dec (h m s) ( ) 16 16 16 16 16 16 16 16 16 16 16 16 16 16 17 16 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 28 32 35 29 35 34 37 37 42 44 44 51 51 47 04 56 00 03 06 12 10 10 13 14 24 19 17 25 24 27 32 32 42 34 39 37 35 43 42 36 30 15 45 00 20 20 20 30 55 05 00 25 15 10 25 50 20 50 50 00 40 30 50 35 20 05 40 30 20 10 40 00 35 40 20 15 20 35 20 25 -47 -47 -47 -46 -46 -46 -46 -46 -44 -44 -43 -43 -43 -42 -44 -43 -41 -40 -40 -38 -38 -38 -38 -37 -38 -36 -35 -36 -35 -33 -33 -32 -33 -32 -32 -30 -30 -30 -29 -29 13 30 45 30 53 18 28 13 34 29 42 56 48 59 12 10 38 49 07 25 29 08 01 23 30 08 24 14 05 44 40 36 42 14 51 56 42 15 56 09 size /arcmin 14 â 10 1.5 6 15 â 12 9â6 15? 8 9 10 â 7 6 16 â 22 7 12 â 9 10 â 9 32? 27 â 21 10 6 8 10? 15 17? 9â6 2.5 â 2 45 7 18 â 14 12 â 9 8â6 15 â 3? 19 6â8 13 7 â 11 15 â 20 3 â 8? 24 23 24 11 â 12 type

­V­ Flux at 1 GHz/Jy 6 1.5 2? 16 18 4? 7? 12? 5 5? 1.5? 2.5 3.5? 0.5? 8? 7.8 2.5? 0.6? 8? 10? 72 26 1.4? 20 26 5? 10? 1.8? 4 ? 2.8? 3? 8 3? 3? 37 10 23 14 5? spectral index 0.5 0.6? 0.7 0.55 0.5 0.4 ? ? 0.4 0.4? 0.6? 0.5 0.4? ? 0.5? 0.55 0.5 ? 0.5? 0.4? 0.3 0.3 ? 0.5 0.4 0.4 ? ? 0.6 varies? ? ? 0.5 ? ? 0.4 0.4? 0.5 0.4? ? MSH 17-39 CTB 37A CTB 37B other name(s)

Summary listings

336.7 337.0 337.2 337.3 337.8 338.1 338.3 338.5 340.4 340.6 341.2 341.9 342.0 342.1 343.1 343.1 344.7 345.7 346.6 348.5 348.5 348.7 349.2 349.7 350.0 351.2 351.7 351.9 352.7 354.1 354.8 355.6 355.9 356.3 356.3 357.7 357.7 359.0 359.1 359.1

+0.5 -0.1 -0.7 +1.0 -0.1 +0.4 -0.0 +0.1 +0.4 +0.3 +0.9 -0.3 -0.2 +0.9 -2.3 -0.7 -0.1 -0.2 -0.2 -0.0 +0.1 +0.3 -0.1 +0.2 -2.0 +0.1 +0.8 -0.9 -0.1 +0.1 -0 -0 -2 -0 -1 .8 .0 .5 .3 .5

S S S S S S S ? S S C? S S S C? S C? S S S? S S S S S C? S S S C? S S S S S ? S S S S

(CTB 33) Kes 40 Kes 41

-0.1 +0.3 -0.9 -0.5 +0.9

1998 September


Table II

Other names for SNRs

Cygni G78.2 + 2.1 1156-62 G296.8 - 0.3 1814-24 G7.7 - 3.7 3C10 3C58 3C144 3C157 3C358 3C391 3C392 3C396 3C396.1 3C397 3C400.2 3C434.1 3C461 4C-04.71 4C00.70 (4C21.53) 4C(T)55.38.1 G120.1 + 1.4 G130.7 + 3.1 G184.6 - 5.8 G189.1 + 3.0 G4.5 + 6.8 G31.9 + 0.0 G34.7 - 0.4 G39.2 - 0.3 G32.0 - 4.9 G41.1 - 0.3 G53.6 - 2.2 G94.0 + 1.0 G111.7 - 2.1 G27.4 G33.6 G57.2 G93.3 + + + + 0 0 0 6 .0 .1 .8 .9

DR4 G78.2 + 2.1 HB3 G132.7 + 1.3 HB9 G160.9 + 2.6 HB21 G89.0 + 4.7 HC13 HC24 (HC30) (HC40) G33.6 G39.2 G46.8 G54.4 + - - - 0.1 0.3 0.3 0.3

NRAO 593 G39.2 - 0.3 NRAO 611 G53.6 - 2.2 OA 184 G166.2 + 2.5 PKS 0607+17 PKS 0646+06 PKS 1209-51/52 PKS 1459-41 G192.8 G206.9 G296.5 G327.6 - + + + 1.1 2.3 10.0 14.6

Puppis A G260.4 - 3.4 IC443 G189.1 + 3.0 R5 G127.1 + 0.5 Kepler G4.5 + 6.8 Kes 17 Kes 20A Kes 20B Kes 27 Kes 32 Kes 40 Kes 41 Kes 67 Kes 69 Kes 75 Kes 78 Kes 79 G304.6 + 0.1 G310.6 - 0.3 G310.8 - 0.4 G327.4 + 0.4 G332.4 + 0.1 G337.3 + 1.0 G337.8 - 0.1 G18.8 + 0.3 G21.8 - 0.6 G29.7 - 0.3 G32.8 - 0.1 G33.6 + 0.1 RCW 86 G315.4 - 2.3 RCW 89 G320.4 - 1.2 RCW 103 G332.4 - 0.4 S147 G180.0 - 1.7 SN1006 SN1054 SN1181 SN1572 SN1604 G327.6 G184.6 G130.7 G120.1 G4.5 + + 14.6 - 5.8 + 3.1 + 1.4 6.8

CTA 1 G119.5 + 10.2 CTB 1 (CTB 33) CTB 37A CTB 37B CTB 80 CTB 87 CTB 104A CTB 109 G116.9 + 0.2 G337.0 - 0.1 G348.5 + 0.1 G348.7 + 0.3 G69.0 + 2.7 G74.9 + 1.2 G93.7 - 0.2 G109.1 - 1.0

SS433 G39.7 - 2.0 Sgr A East G0.0 + 0.0 Tycho G120.1 + 1.4 Vela (XYZ) G263.9 - 3.3 VRO 42.05.01 G166.0 + 4.3 W28 (W30) W41 W44 W49B W50 (W51) W63 G6.4 - 0.1 G8.7 - 0.1 G23.3 - 0.3 G34.7 - 0.4 G43.3 - 0.2 G39.7 - 2.0 G49.2 - 0.7 G82.2 + 5.3

Lupus Loop G330.0 + 15.0 MSH 08-44 MSH 10-53 MSH 11-54 MSH 11-61A (MSH 11-62) (MSH 14-57) MSH 14-63 MSH 15-52 MSH 15-56 (MSH 15-57) MSH 16-51 MSH 17-39 G260.4 G284.3 G292.0 G290.1 G291.0 G316.3 G315.4 G320.4 G326.3 G328.4 G332.4 G357.7 - - + - - - - - - + + - 3.4 1.8 1.8 0.8 0.1 0.0 2.3 1.2 1.8 0.2 0.1 0.1

Cassiopeia A G111.7 - 2.1 Crab Nebula G184.6 - 5.8 Cygnus Loop G74.0 - 8.5 DA 495 G65.7 + 1.2 DA 530 G93.3 + 6.9 DA 551 G93.7 - 0.2

Milne 56 G5.4 - 1.2 Monoceros Nebula G205.5 + 0.5

1998 September


Table III

Abbreviations used in detailed listings

Journals A&A Astronomy & Astrophysics A&AS Astronomy & Astrophysics Supplement AJ Astronomical Journal ApJ Astrophysical Journal ApJS Astrophysical Journal Supplement AstL Astronomy Letters ARep Astronomy Reports (Astronomicheski Zhurnal translation) i AuJPh Australian Journal of Physics AuJPA Australian Journal of Physics Astrophysical Supplement JApA Journal of Astrophysics & Astronomy JRASC Journal of the Royal Astronomical Society of Canada MNRAS Monthly Notices of the Royal Astronomical Society Natur Nature PASAu Proceedings of the Astronomical Society of Australia PASJ Publications of the Astronomical Society of Japan PASP Publications of the Astronomical Society of the Pacific RMxAA Review of Mexican Astronomy & Astrophysics Sci Science SvA Soviet Astronomy SvAL Soviet Astronomy Letters Proceedings SNRISM is Supernova Remnants and the Interstellar Medium, (IAU Colloquium 101), eds Roger, R.S. & Landecker, T.L., (Cambridge University Press), 1988. Radio Telescopes 5km Cambridge 5-km Telescope 6C Cambridge low frequency northern survey ATCA Australia Telescope Compact Array CLFST Cambridge Low Frequency Synthesis Telescope DRAO Dominion Radio Astrophysical Observatory FIRST Fleurs Synthesis Telescope HMT Cambridge Half-Mile Telescope MOST Molonglo Observatory Synthesis Telescope NRAO National Radio Astronomy Observatory NRO Nobeyama Radio Observatory OMT Cambridge One-Mile Telescope OSRT Ooty Synthesis Radio Telescope TPT Clark Lake TPT telescope VLA Very Large Array VRO Vermillion River Observatory WSRT Westerbork Synthesis Radio Telescope Satellites HST Hubble Space Telescope ISO Infrared Space Observatory X-ray: EXOSAT European X-ray Observatory Satellite ¨ ROSAT Rontgensatellit ASCA Advanced Satellite for Cosmology and Astrophysics On board Einstein (HEAO-2): HRI High Resolution Imager IPC Imaging Proportional Counter

1998 September