... are preliminary IAU-style names for ChaMP objects. Finalization of names awaits the final systematization of optical coordinates and source identification. ... The yellow regions highlight atmospheric telluric bands at ~6900A and ~7600A. The optical ID, X-ray ID, classification, and redshift are given at the top of each plot, and a series of lines are shown that are often found in sources of that given classification. ... HS limit? ... g' band magnitude; calibrated SExtractor Kron mag or limit . ...

... astro-ph/0003002 We cross-identified the ROSAT Bright Source Catalog (RBSC) and the NRAO VLA Sky Survey (NVSS) to construct the RBSC-NVSS sample of the brightest X-ray sources (~0.1 counts s^{-1} ~= 10^{-12} ergs cm^-2s^-1 in the 0.1--2.4 keV band) that are also radio sources (S ~= 2.5 mJy at 1.4 GHz) in the 7.8 sr of extragalactic sky with |b| > 15deg and DEC > -40deg. ... We used the more accurate radio positions to make reliable X-ray/radio/optical identifications down to the POSS plate limits. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Equatorial coronal hole (top left), polar CH (top right), quiet Sun (bottom left) and quiet Sun with TCHs (bottom right) with the positions of all the corresponding identified brightening pixels over-plotted. ... We found that in comparison to the quiet Sun, the boundaries of coronal holes are abundant with brightening events including areas inside the coronal holes where closed magnetic field structures are present. ...

... Transit time [h] . ... non-AR . ... 2000/02/12, 12 . ... Column 1 - An event number corresponding to the Coordinated Data Analysis Workshop (CDAW) Catalog of the severe geomagnetic storms with Dst <-100 nT (Zhang, J., Richardson, I.G., Webb, D.F., Gopalswamy, N., Huttunen, E., Kasper, J., et al.: 2007a, J. Geophys. ... In column 10, the label `AR' means that the eruption occurred in and around an AR, while the label `non-AR' indicates events resulting from filament eruptions outside ARs. ...

... This thread contains a step-by-step recipe to extract EPIC (pn will be used as an example) light-curves of a point-like source, starting from a calibrated, concatenated event list (either produced with epproc or available as PPS product; it will bear the name: PN.fits in this thread). The content of this thread is the same as Extraction of a X-ray light curve for a point-like source (command-line version). ... in the lccorr GUI window (see Fig.7) define at least the following widgets: . ...

The magnetic mapping is fulfilled by the magnetic field line tracing from the satellite position up to the Ionosphere (stop trace at the altitude 110 km). ... As a rule the Tsyganenko [1987] external magnetic field model and IOPT = 3 (Kp = 2) are used. ... The output file includes the following information: . ... For example the file with name aa9610d1.geo contains the information corresponding to the aposteriory magnetic mapping for INTERBALL Auroral Probe for the first decade of October 1996. ...

... The storm began quite unexpectedly. The strongest geomagnetic storm for the last seven months began on Earth almost precisely at the same time as the solar eclipse reached its maximal stage, the culmination of which occurred at GMT 02:35 (06:35 Moscow time). ... Oscillations of such amplitude in the magnetic field have not been observed since October, 11th of last year, which is more than seven months ago. ... We can only add that the magnetic storm lasted approximately 9 hours. ...

Next: Comments on Individual Sources Up: Sample Identification Previous: Sample Identification . In Figure 2, we show the spectra of the optical counterparts to 85 of 97 observed X-ray/radio sources. ... Positional information for all 85 sources for which we announce identifications herein are given in Table 3, including information from WGACAT, the PMN and Green Bank surveys, the NVSS and our ATCA survey. ... Of the 85 newly identified sources, 59 are FSRQs, and 22 are BL Lacs. ...

... LABORATORY OF RADIO ASTRONOMICAL OBSERVATIONS . Radio sources identification is one of the most important tasks of the current radio astrophysics. ... Optical idetification. ... Optical identifications of subsample of steep spectra radio sources from RC catalog using 6m SAO telescope of SAO RAS: optical observations. ... Astronomy Reports. ... Identification of radio sources with data of various radio catalogs allows one to construct continual spectrum of the object and its radio structure. ...

OPTICAL IDENTIFICATIONS OF INTEGRAL / RXTE SOURCES WITH 1.5-METER OPTICAL TELESCOPE RTT150 I.Bikmaev (1,2), M.Revnivtsev (3,4) , R.Burenin (3) R.Sunyaev (3,4) , N.Sakhibullin (1,2) (1) Kazan State University, Kremlevskaya Str., ... 1, D-85741, Garching bei MЭnchen , Germany (3 (4) ABSTRACT We present the first results of our project on optical identifications of INTEGRAL / RXTE hard X-ray sources by using scientific instrumentations of the 1.5meter joint Russian-Turkish optical telescope RTT150. ...

... Be/X-Ray Binaries and candidates in the Galaxy Up: Be/X-ray binaries and candidates Previous: Introduction . ... We separate galactic sources, systems in Large Magellanic Cloud (LMC) and in the Small Magellanic Cloud (SMC). ... In the first column we give sources names. ... Some comments and more detailed description of each object can be found in subsections "Comments to the tables" below (each subsection refers to galactic, LMC or SMC sources). ... Be/X-Ray Binaries and candidates in the SMC . ...

... We also identified two other spectrally unique terrains, corresponding to the northern polar ice cap, and to the southern winter polar hood. Comparisons with mineral spectra indicate the possibility of different H 2O- or OH-bearing (i.e., hydroxides and/or hydrates) minerals existing both in northern Acidalia and in the nearby intermediate albedo terrain. Hydrated minerals do not appear to be spectrally important components of the southern hemisphere dark terrains imaged by HST in 1997. ...

... We propose a set of standard character strings to be used in FITS files generated by data from the ALEXIS (Array of Low Energy X-ray Imaging Sensors) satellite mission. ... The following is our current proposal for keywords to use for storing raw and processed ALEXIS mission data in FITS format. TELESCOP= 'ALEXIS ' . ... In migrating these existing files to FITS formats, we propose the following non-inclusive list of generic column headers (these will be of the form TTYPE n = ' header ' ). ...

... Content Model: Optional list header (LH), followed by one or more terms (DT) and definitions (DD). A definition list is a list of terms and corresponding definitions. Definition lists are typically formatted with the term on the left with the definition following on the right or on the next line. ... The definition list element can take the COMPACT attribute, which suggests that a compact rendering be used, and is appropriate if the list elements are small and/or the entire list is large. ...

Name: GRSLCT Purpose: select active output device Category: GRAPHICS File: pgplot.src Author: T.J. Pearson Use: see description below. Description: SUBROUTINE GRSLCT (IDENT) GRPCKG: Check that IDENT is a valid plot identifier, and select the corresponding plot as the current plot. All subsequent plotting will be directed to this device until the assignment is changed by another call to GRSLCT. ... Updates: Oct 16, 1998: JPT automatically extracted from source. ...

Proposal Identification No.: P2204 Date Received: 2006-Feb-01 23:45:13 Technical Page Proposal Type: General Category: Observation Category: Total Time Requested: Prop osal Title: Regular Pulsars 3.5 Hours Soft X-ray transient 1H 1905+000: the closest counterpart to the millisecond radio pulsars. ... We therefore propose to search 1H~ 1905+000 for radio pulsations to learn about this interaction between accretion, thermal radiation and the radio-pulsar emission mechanism. ...

... General Catalog of Variable Stars (GCVS database, Version 2012 Feb.) ... The cross-identification tables of the General Catalogue of Variable Stars (GCVS) contain all GCVS (including extragalactic variables from vol.V), NSV (New catalogue of Suspected Variable stars) and Supplement to the NSV stars as well as stars from the name-lists of variable stars nos. 67 - 80; it also makes it possible to find out identifications between the GCVS and the NSV catalogue. ... I-III) names are included. ...

... Produced for the CHIANTI atomic database by Peter Young, 7-Jul-2000. contact: pyoung@cfa.harvard.edu %A values: Obtained from a 13 configuration model of Fe XI used in "superstructure", see comment below %comment: The configurations used were: 3s2 3p4, 3s 3p5, 3s2 3p3 3d, 3p6 3s2 3p3 {4s, 4p, 4d, 4f} 3s 3p4 3d, 3s2 3p2 3d2 3p5 3d, 3s 3p3 3d2, 3s2 3p 3d3 The most striking difference between this model and the 4 conf model occurs for the (2D*) 3P1, 3S1 and 1P1 levels. ...

It is a matter of common knowledge that in processes of genesis and evolution of many solar phenomena participate magnetic fields of sunspots. ... As a basis for formation of the database we take data on magnetic fields, collected by set of observatories during many years of observations. ... Section "Magnetic field data" contains data of magnetic field observation for separate sunspots, presented in standard text format (ASCII). ... Description of structure of these files is presented here . ...

... The Matter of Galaxy Clusters . ... NASA Explanation: Situated over 2,000,000,000 ( two billion ) light-years from Earth, galaxies in cluster Abell 2390 (top) and MS2137.3-2353 (bottom) are seen in the right hand panels above, false-color images from the Hubble Space Telescope . ... While the Hubble images record the cluster's star-filled galaxies, the x-ray images show no galaxies at all ... only multi-million degree hot intracluster gas which glows in high energy x-rays. ...