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The XRAY database table contains selected parameters from almost all HEASARC X-ray catalogs that have source positions located to better than a few arcminutes. The XRAY database table was created...
Search relevance: 223.10 | Views last month: 1 | Catalog Last Checked: November 03, 2026 at 11:47 PM -
The Quasars.org (QORG) Catalog is an all-sky optical catalog of radio/X-ray sources. The QORG Catalog aligns and overlays the year 2001/2 releases of the ROSAT HRI, RASS, PSPC and WGA X-ray...
Search relevance: 79.02 | Views last month: 8 | Catalog Last Checked: November 03, 2026 at 11:50 PM -
The Chandra Source Catalog (CSC) is the definitive catalog of X-ray sources detected by the Chandra X-ray Observatory. By combining Chandra's sub-arcsecond on-axis spatial resolution and low...
Search relevance: 62.88 | Views last month: 20 | Catalog Last Checked: November 03, 2026 at 11:43 PM -
This table contains some of the results from the first paper of a series devoted to the Lambda Orionis star-forming region, Orion's Head, from the X-ray perspective. The final aim of this research...
Search relevance: 62.32 | Views last month: 2 | Catalog Last Checked: November 03, 2026 at 11:45 PM -
The Millions of Optical Radio/X-ray Associations (MORX) catalog combines all of the largest published optical, radio, and X-ray sky catalogs to find probable radio/X-ray associations with optical...
Search relevance: 61.33 | Views last month: 3 | Catalog Last Checked: November 03, 2026 at 11:44 PM -
This table contains some of the results from the first X-ray study of Collinder 261 (Cr 261), which at an age of 7 Gyr is one of the oldest open clusters known in the Galaxy. This observation with...
Search relevance: 57.68 | Views last month: 4 | Catalog Last Checked: November 03, 2026 at 11:50 PM -
With the goal of improving the member census of the NGC 2264 star-forming region and studying the origin of X-ray activity in young pre-main sequence (PMS) stars, the authors analyzed a deep, 100...
Search relevance: 57.51 | Views last month: 3 | Catalog Last Checked: November 03, 2026 at 11:49 PM -
The XMM-Newton survey of the Small Magellanic Cloud (SMC) yielded complete coverage of the bar and eastern wing in the 0.2-12.0 keV energy band. In addition to the main-field (5.58...
Search relevance: 52.18 | Views last month: 12 | Catalog Last Checked: November 03, 2026 at 11:47 PM -
This table contains the 132,254 AllWISE counterparts and/or Gaia matches to 106,573 X-ray sources detected in the ROSAT 2RXS survey with Galactic latitude |b| > 15 degrees. These are the brightest...
Search relevance: 51.72 | Views last month: 1 | Catalog Last Checked: November 03, 2026 at 11:44 PM -
This table contains some of the results from the first X-ray study of NGC 6791, one of the oldest open clusters known (8 Gyr). This Chandra observation was aimed at uncovering the population of...
Search relevance: 50.31 | Views last month: 3 | Catalog Last Checked: November 03, 2026 at 11:50 PM -
This table contains the 19,141 AllWISE counterparts and/or Gaia matches to 17,665 X-ray sources detected in the XMM-Newton Slew Survey, Version 2 (hereafter XMMSL2, currently available at the...
Search relevance: 49.96 | Views last month: 1 | Catalog Last Checked: November 03, 2026 at 11:46 PM -
This table contains some of the results from an in-depth study of low-mass X-ray binaries (LMXBs) detected in the nearby lenticular galaxy NGC 3115 using the Megasecond Chandra X-ray Visionary...
Search relevance: 41.17 | Views last month: 4 | Catalog Last Checked: November 03, 2026 at 11:43 PM -
The EUV database table is the Extreme Ultraviolet (EUV) Master Catalog and contains a compendium of EUV sources. It is comprised of selected fields from the following HEASARC EUV database tables:...
Search relevance: 38.67 | Views last month: 3 | Catalog Last Checked: November 03, 2026 at 11:48 PM
