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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... -
New Catalog of Compact 6cm Sources in the Galactic Plane
This table contains the New Catalog of Compact Radio (6-cm) Sources in the Galactic Plane of White et al. (2005). Archival data were combined with more recent observations of... -
New Catalog of Compact 20cm Sources in the Galactic Plane
This table contains the New Catalog of Compact Radio (20-cm) Sources in the Galactic Plane of White et al. (2005). Archival data were combined with more recent observations of... -
Wide Angle ROSAT Pointed Survey, Second Phase (WARPS-II) Clusters Catalog
This table contains the galaxy cluster catalog from the second, larger phase of the Wide Angle ROSAT Pointed Survey (WARPS), an X-ray selected survey for high-redshift galaxy... -
Wide Angle ROSAT Pointed Survey, First Phase (WARPS-I)
The Wide Angle ROSAT Pointed Survey, First Phase (WARPS-I) table is a catalog which contains optical identifications for objects found in a serendipitous survey of relatively... -
W 40 Star-Forming Region Chandra X-Ray Point Source Catalog
The young stellar cluster illuminating the W40 H II region, one of the nearest massive star-forming regions (SFRs), has been observed with the ACIS detector on board the Chandra... -
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... -
Fermi LAT Gamma-Ray Blazar Classification Catalog
This database table contains a catalog of classifications for blazar candidates of uncertain type (BCU) detected by the Fermi Large Area Telescope gamma-ray instrument. These... -
SkyView Virtual Observatory
SkyView is a Virtual Observatory on the Net. Astronomers can generate images of any portion of the sky at wavelengths in all regimes from radio to gamma-ray. Users tell SkyView... -
CfA Redshift Catalog (June 1995 Version)
The ZCAT database contains the CfA Redshift Catalog, which incorporates much of the latest velocity data from the Whipple Observatory and other sources, as well as velocities... -
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-DR13s (<a href="/W3Browse/xmm-newton/xmmstack.html">XMMSTACK</a>) has been compiled from 1,688 groups, comprising 9,796 overlapping... -
XMM-Newton Serendipitous Source Catalog from Stacked Observations (4XMM-DR13s)
The stacked catalog 4XMM-DR13s has been compiled from 1,688 groups, comprising 9,796 overlapping good-quality XMM-Newton observations. They were selected from the public...