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XMM-Newton Wide Angle Survey
This table contains results from the XMM-Newton Wide Angle Survey (XWAS), viz., a new catalog of almost a thousand X-ray sources that have been spectroscopically identified... -
XTE Archived Public Slew Data
This database table is a catalog of all the RXTE slew observations and is based on information culled from the RXTE Data Archive's latest top-level FMI (FITS Master Index)... -
XTE All-Sky Slew Survey Catalog
The Rossi X-Ray Timing Explorer (RXTE) All-Sky Survey Slew Catalog contains the results of a serendipitous hard X-ray (3 - 20 keV), nearly all-sky (|b|>10 degrees) survey... -
XMM-Newton Medium Sensitivity Survey (XMS) Source Catalog
X-ray sources at intermediate fluxes (a few x 10<sup>-14</sup> erg/cm<sup>2</sup>/s) with a sky density of ~ 100 deg<sup>2</sup> are... -
XMM-Newton XAssist Source List
This database table contains the latest XMM-Newton XAssist source list. XAssist is a NASA-funded project for the automation of X-ray astrophysics, with emphasis on galaxies. It... -
Ensemble X-Ray Variability of AGN in 2XMMi-DR3
The X-ray variability of active galactic nuclei (AGN) has been most often investigated with studies of individual, nearby sources, and only a few ensemble analyses have been... -
2XMM Flares Detected from Tycho-2 Stars
This table contains the results from a uniform, large-scale survey of X-ray flare emission, based on the XMM-Newton Serendipitous Source Catalog (2XMM) and its associated data... -
XMM-Newton Serendipitous Source Catalog from Stacked Observations: Obs. Data
The stacked catalog 4XMM-DR14s (<a href="/W3Browse/xmm-newton/xmmstack.html">XMMSTACK</a>) has been compiled from 1,751 groups, comprising 10,336 overlapping... -
XMM-Newton Serendipitous Source Catalog from Stacked Observations (4XMM-DR14s)
The stacked catalog 4XMM-DR14s has been compiled from 1,751 groups, comprising 10,336 overlapping XMM-Newton observations. They were selected from the public observations taken... -
XMM-Newton 2XMMi-DR3 Selected Source Classifications Catalog
The authors have carried out a classification of 4,330 X-ray sources in the 2XMMi-DR3 catalog. The sources were selected under the requirement of being a point source with... -
XMM-Newton 2XMMi-DR3 Selected Source Detections Catalog
The authors have carried out a classification of 4,330 X-ray sources in the 2XMMi-DR3 catalog. The sources were selected under the requirement of being a point source with... -
ROSAT Catalog PSPC WGA Sources
WGACAT is a point source catalog generated from all ROSAT PSPC pointed observations. This catalog has been generated by N.E. White (HEASARC/GSFC), P. Giommi (SDC/ASI) and L.... -
Westerbork Northern Sky Survey
The Westerbork Northern Sky Survey (WENSS) is a low-frequency radio survey that covers the whole sky north of declination +30 degrees at a wavelength of 92 cm to a limiting flux... -
Westerlund 1 Chandra X-Ray Point Source Catalog
The nature of the X-ray point source population within the young massive cluster Westerlund 1 (Wd 1) is investigated. Chandra X-ray Observatory (CXO) observations were used to... -
WISE/2MASS/RASS (W2R) AGN Sample Catalog
The authors of this catalog have developed the S<sub>IX</sub> statistic to identify bright, highly likely active galactic nucleus (AGN) candidates solely on the... -
VLA-VIRMOS Deep Field 20-cm Source Catalog
The authors of this table conducted a deep survey (rms noise ~ 17 microJansky or uJy) with the Very Large Array (VLA) at 1.4 GHz, with a resolution of 6 arcseconds, of a 1... -
VLA Low-Frequency Sky Survey Redux Source Catalog
The Very Large Array (VLA) Low-Frequency Sky Survey (VLSS: see Cohen et al. 2007, AJ, 134, 1245) covers 95% of the 3 pi sr of sky area above -30 degrees Declination at most RAs... -
VLA XMM Large Scale Structure Field 74-MHz Source Catalog
The XMM Large Scale Structure survey (XMM-LSS) is an X-ray survey aimed at studying the large scale structure of the Universe. The XMM-LSS field (centered at RA (J2000) =... -
VLA XMM Large Scale Structure Field 325-MHz Source Catalog
The XMM Large Scale Structure survey (XMM-LSS) is an X-ray survey aimed at studying the large scale structure of the Universe. The XMM-LSS field (centered at RA (J2000) =... -
VLA Subaru/XMM-Newton Deep Field 1.4-GHz Sources Optical/Near-IR Counterparts
In Simpson et al. (2006, MNRAS, 372, 741, hereafter Paper I, available at the HEASARC as the <a href="/W3Browse/radio-catalog/vlasxdf1p4.html">VLASXDF1P4</a> table,...
