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Documentation: LEDA: raw data : flux

Table of raw fluxes

The  structure of the table is :
mag, e_mag, loga, iso, band, tel, code_mag, beam_c, quality, reference

The table rawflux contains the following parameters :

mag
 Magnitude
e_mag uncertainty on magnitude
loga aperture (used for aperture photometry) in log of 0.1 arcmin
iso isophotal limiting surface brightness for isophotal magnitude
band code for the photometric band (according to the table below)
tel code for the telescope (used for 21_cm flux correction)
code_mag code for the type of magnitude (total, Kron,Petrosian
beam_c code telling that the 21-cm line flux is corrected (1) or uncorrected (0) for the beam filling effect
quality code for coding the quality of the measurement
reference bibliographic reference code


The range and meaning of each parameter is as following :

mag :  magnitude expressing the flux
For 21-cm line flux :
 mag = -2.5log S + 21.6    (S in 10^-24 W.m^-2)
For IRAS flux :
 mag = -2.5log F + 11.6    (F in Jansky)
loga from -5 to 5  log of a circular aperture A  expressed in 0.1 arcmin.
iso  from 10 to 30 in mag.arcsec-2


The coding of integer codes is given in the following table :

Band Definition
0 unknown
1 unknown in visible domain
2 U band
3 B band
4 V band
5 pg Holmberg
6 pv Holmberg
7 radio (21-cm line)
8 IRAS 12 mu
9 IRAS 25 mu
10 IRAS 60 mu
11 IRAS 100 mu
12 H band 1.6mu for Aaronson system)
13 I band for Mathewson system
14 R band
15 J band
16 K band
17 H band
18 z band
19 not used
20 I DENIS
21 J DENIS
22 K DENIS
23 J 2MASS
24 H 2MASS
25 K 2MASS
26 u SDSS (Sloan)
27 g SDSS (Sloan)
28 r SDSS (Sloan)
29 i SDSS (Sloan)
30 z SDSS (Sloan)


code_mag Definition
1 total magnitude (asymptotic extrapolated)
2 Kron_elliptical
3 Petrosian
4 isophotal
5 logA/D=-0.5 (Aaronson system)
6 logA


Beam_c Definition
0 21-cm flux uncorrected for beam filling(need the telescope code to perform the correction)
1 21-cm flux corrected for beam filling


Quality Definition
0 accurate
1 doubtful or 1sigma detection
2 upper limit
9 measurement to be rejected

Tel Latitude Place (table from Paturel and Andernach)
1 +4722.4 Nancay (France)
2 +5255.0 Westerbork Synth. RT (Netherlands)
3 +3825.8 NRAO Green Bank (43m  140-ft)
4 +5210.2 Cambridge (MRAo)
5 +5314.2 Jodrell Bank (250-ft 
6
Harvard 60-ft ant. (Ft.Davis TX, USA)
7 +3825.8 NRAO Green Bank (91m, 300 ft
8 +5031.6 Effelsberg 100-m dish
9 +1820.6 Arecibo (305-m,1000 ft,P.Rico)
10 -3300.0 Parkes 64-m dish (Australia)
11 +3713.9 Owens Valley (OVRO,CA, USA)
12 +5248.8 Dwingeloo 25-m dish (Netherlands)
13 -3452.1 IAR 30-m dish (Argentina)
14 +5314.2 Jodrell Bank (125x85ft Mk II, UK
15 +3404.7 Very Large Array (any configuration) (idem 21)
16
Potts Hill 36 ft
17 +4049.1 Hat Creek 85-ft, 26-m ant (CA, USA)
18
Murray Bank 21-ft (Australia)
19 +4349.5 RATAN-600 (SAO, Russia)
20 +4015.1 Ohio State Univ. 260-ft (OSURO, USA)
21 +3404.7 Very Large Array (any config.) (idem 15)
22 +3825.8 NRAO Green Bank 3 x 26-m interferometer
23 +4919.2 DRAO Penticton 25-m dish (Canada)
24 -2915.4 SEST ..-m dish (La Silla, Chile)
25 +3404.7 Very Large Array A-configuration
26 +3404.7 Very Large Array B-configuration
27 +3404.7 Very Large Array C-configuration
28 +3404.7 Very Large Array D-configuration
29 +5946.2 Pulkovo array (near St.Petersbg.)
30
Puschino 22-m dish (near Moscow)
31 +4431.2 Bologna Northern Cross (Medicina Italy)
32
Clark Lake TPT interferometer
33 +4436. Crimean Astrophysical Obs. 22-m dish
34
Vermillion River Obs. 37-m antenna (USA)
35
Culgoora radioheliograph (Australia)
36 +5210.2 Cambridge (UK) 5-km array
37 +5210.2 Cambridge (UK) half-mile array
38 +5210.2 Cambridge (UK) one-mile array
39 +4919.2 DRAO Penticton interferometer (Canada)
40 +3006.0 Univ.Texas Interferometer (UTRAO)
41 +4942.0 UTR-2 Decametre Array (Grakovo Ukraine
42 -3352.0 Fleurs Synthesis Telescope (Australia)
43 -9900. PKS-Tidbinbilla interferometer
44 -3346.7 Australia Telescope Comp. Array (ATCA)
45 -3346.7 Australia Telescope Non-ATCA
46 -3522.3 Molonglo Synthesis Tel. (MOST Australia)
47 +3556.3 NRO Nobeyama 45-m dish (Japan)
48
NRO Nobeyama mm-array (Japan)
49 +1122.9 Ooty Synthesis array (India)
50 +3704.0 IRAM Pico Veleta 30-m dish
51 +4438.0 IRAM Plateau de Bure interferometer
52 -9900. MERLIN interfeometer (UK)
53 -9900. VLBI (General)
54 -9900. EVN (European VLBI Network)
55 -9900. VLBA (US Network)
56 +4223.5 Amherst FCRAO ..-m dish (MA, USA)
57 +4237.4 Haystack 37-m dish (NEROC, MA, USA)
58 +4557.3 Algonquin Radio Obs. ..-m dish (Canada)
59 -4250.0 Hobart (Tasmania, Australia)
60 +5034.2 Stockert 25-m dish (Germany)
61 -2311.0 Itapetinga ..-m dish (Brazil)
62 +6013.1 Metsahovi ..-m dish (Finland)
63 +4031.4 Yebes ..-m dish (OAN, CAY, Spain)
64 +5108.7 hilbolton ..-m dish (UK)
65 +3157.4 NRAO 11-m dish Kitt Peak (AZ, USA)
66 +1949.9 JCMT-UKIRT ..-m dish (Hawaii, USA)
67
future telescopes:
68 +3825.8 Green Bank Telescope (100-m GBT)
69 +3242.1 SMT or H.-Hertz 10-m tel. (Mt.Graham)
70
BIMA mm-array (USA)
71 +1906. Giant Meterwave Radiotel. (GMRT, India)