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Telescope observations, star catalogs, exoplanet surveys, galaxy morphology, gravitational waves, spectroscopy
2,942 datasets
NASA HEASARC provides a catalog of 3,405 X-ray sources from the ROSAT All Sky Survey within the 6dF Galaxy Survey area. The catalog includes optical spectra for 2,224 sources, with reliable redshifts for 1,715 objects, primarily quasi-stellar objects and active galaxies. This table was created in April 2010 based on the reference paper.
A Galactic plane region at coordinates (l, b) ~ (28.5 degrees, 0.0 degrees) was observed using the Chandra ACIS-I instrument. The catalog contains 274 newly detected X-ray point sources, with sensitivity down to ~2x10^-16 erg/s/cm^2 in the soft band. NASA HEASARC created this browse table in December 2006 based on the CDS catalog J/ApJ/635/214/.
The Third Extreme Ultraviolet Explorer (EUVE) Right Angle Program Catalog contains information on 76 extreme ultraviolet sources, including 63 new detections. NASA HEASARC created this table in September 2011 based on data from observations in 1999 and 2000, covering 7% of the sky. The catalog provides source count rates and identifications across four wavelength bands.
153 X-ray sources detected in a 184.7 ks Chandra ACIS-I observation of the Lynx field. The catalog includes 132 soft-band and 11 hard-band sources, with optical counterparts for 77% and near-infrared counterparts for 71% of the sources. The data was produced by NASA from observations taken on 2000 May 3-4.
3,172 distinct radio sources detected at 5 sigma or greater from deep Westerbork Synthesis Radio Telescope observations of the Bootes Deep Field. The catalog was created by NASA HEASARC in December 2001 and updated in March 2011. Observations covered approximately 7 square degrees with a uniform sensitivity and a limiting sensitivity of 28 microJansky.
The Fermi LAT 4-Year Point Source Catalog (3FGL) contains high-energy gamma-ray sources detected by the Fermi Gamma-ray Space Telescope's Large Area Telescope. It covers the first 48 months of the mission, from 2008 August 4, with sources characterized in the 100 MeV to 300 GeV range. The catalog was produced by the Fermi LAT Team and is provided by NASA HEASARC.
NASA's Fermi-Large Area Telescope detected 360 sources in the 50 GeV to 2 TeV energy range using 80 months of data. The catalog, produced by the Fermi Science Support Center, provides precise localizations and associations for high-energy astrophysical objects. This work, first ingested by the HEASARC in September 2015, bridges observations between GeV and very-high-energy telescopes.
Sloan Digital Sky Survey (SDSS) Data Release 6 imaging data covering 8417 square degrees was used to create a catalog of 1,015,082 quasar candidates. The catalog, produced by NASA HEASARC, extends a previous sample by probing both UV-excess and high-redshift quasars and is expected to contain at least 850,000 bona fide quasars. It includes photometric redshift estimates and cross-matching with radio, X-ray, and proper-motion catalogs.
Southern sky data (delta ≤ +2.5 degrees) provides accurate positions and photometric properties for individual galaxies within compact groups. The catalog contains 3,435 galaxies across 373 groups, derived from the COSMOS/UKST catalog and the CDS Catalog VII/196. NASA HEASARC created this database table in June 2000.
NASA's Fermi Large Area Telescope catalog of 1558 sources detected above 10 GeV, using data from its first 7 years. The catalog includes 225 new sources, with improved sensitivity and angular resolution over previous versions. It was ingested by the HEASARC in December 2017.
A catalog of 6,262 compact radio sources detected at 151 MHz by the Cambridge Low Frequency Synthesis Telescope (CLFST). The survey covers specific regions of the northern Galactic plane with a completeness limit of approximately 0.25 Jy and an rms positional accuracy better than 10 arcseconds. This table was created by NASA's HEASARC in October 2010 based on data from the reference paper.
A 2.276 x 2.276 square degree area of the CFHTLS W1 field overlapping XMM-Newton observations contains a catalog of 128 X-ray galaxy groups. The catalog, created by NASA HEASARC in December 2014, covers a redshift range of 0.04 to 1.23 and was used to study the evolution of the magnitude gap between brightest cluster galaxies. The data originates from the XMM-LSS survey, with optical support from CFHTLS observations conducted between 2003 and 2008.
The third release of the Large Quasar Astrometric Catalog (LQAC-3) compiles all quasars recorded up to its publication date. It was created by cross-identifying nine source catalogs and includes precise ICRS equatorial coordinates, redshifts, photometry, and absolute magnitudes for its objects. The catalog is maintained by the National Aeronautics and Space Administration and was last updated in March 2026.
NASA HEASARC provides a catalog classifying 4,330 X-ray point sources from the XMM-Newton 2XMMi-DR3 survey. The classification, based on literature and derived criteria, identifies stars, active galactic nuclei (AGNs), and compact object systems. This table was created in October 2012 from published research in The Astrophysical Journal.
277 X-ray point sources detected in the elliptical galaxy NGC 4636 from three Chandra observations totaling ~193 ks. The catalog, created by the HEASARC and hosted by NASA, includes analysis of source variability, luminosity functions, and associations with globular clusters. The data was last updated on the platform in March 2026.
114 high-mass X-ray binary systems cataloged by NASA HEASARC, with source names, coordinates, X-ray luminosities, and system parameters. The catalog includes literature references up to October 2005 and provides notes on individual sources. It was last updated to its 4th edition in September 2006 based on data from the CDS catalog J/A+A/455/1165.
A catalog of 387 X-ray sources from the Canis Major OB1 star-forming region, with 340 having near-infrared counterparts from 2MASS and WISE. The dataset provides photometry, age and mass estimates, and infrared classifications for young stellar objects, created by NASA using XMM-Newton observations. The data was last updated on March 13, 2026.
46,000 X-ray source detections from the Einstein Observatory (HEAO-2) Imaging Proportional Counter, compiled by NASA HEASARC. The catalog covers 1850 square degrees of the sky, excluding regions with diffuse emission like the galactic plane and bright clusters. According to the authors, only about 13,000 (28%) of the listed sources are estimated to be real astrophysical objects, with the remainder being spurious.
13,188 Galactic cold sources were detected across the whole sky by combining Planck satellite data at 857, 545, and 353 GHz with IRAS data at 3 THz. The Planck Catalogue of Galactic Cold Clumps (PGCC) was produced by the National Aeronautics and Space Administration, with the last metadata update in 2026. Reliable distance estimates for 5,574 sources allow the derivation of physical properties like mass, size, density, and luminosity.
The Sloan Digital Sky Survey III Baryon Oscillation Spectroscopic Survey (BOSS) produced this catalog covering 9,376 square degrees. It contains 297,301 confirmed quasars, including 272,026 new discoveries, with redshifts, emission line data, and multi-band photometry. The catalog results from five years of observations and includes supplemental data on broad absorption line quasars and serendipitous discoveries.