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Telescope observations, star catalogs, exoplanet surveys, galaxy morphology, gravitational waves, spectroscopy
2,941 datasets
NASA HEASARC provides the HEAO 1 A-2 Piccinotti Catalog, a flux-limited sample of 68 non-galactic X-ray sources from a 1977-1979 sky survey. The catalog covers 65.5% of the sky, excluding the galactic plane, and lists 61 identified extragalactic sources and 7 unidentified ones. Data collection occurred during two independent scans in 1977-1978, with sources detected at a minimum statistical significance of 5 sigma.
NASA HEASARC provides a catalog of 246 X-ray point sources detected in the nearby radio galaxy Centaurus A (NGC 5128) from two Chandra observations in 1999 and 2000. The table includes sources detected above a limiting luminosity of ~2 x 10^36 ergs/s, with 82 sources confirmed in both overlapping observations. This catalog was created in February 2007 based on data from the Chandra ACIS-I array.
Nearly 1,000 hard X-ray sources from over 2 square degrees of Chandra images have optical counterparts or flux limits derived from R-band imaging. Optical spectra for 477 counterparts provide identifications and redshifts for 438 sources, with redshifts ranging from 0.1 to 4.33. This table combines data from the SEXSI program's optical follow-up studies published in 2005 and 2006 by NASA HEASARC.
99.5% reliable point sources from the Spitzer Space Telescope's Vela-Carina Galactic plane survey. This catalog covers 86 square degrees of the Carina and Vela regions, applying a '2+1' detection criterion across IRAC bands and 2MASS Ks. NASA produced the data, which was last updated in March 2026.
The ChaMP Extended Stellar Survey (ChESS) X-Ray Catalog contains 348 X-ray-emitting stars identified by NASA HEASARC. The catalog was created by correlating archival X-ray images from the Chandra Multiwavelength Project with optical data from the Sloan Digital Sky Survey, using morphological and photometric cuts to isolate stellar sources. This table was created by the HEASARC in January 2009 based on data from a published reference paper.
177 X-ray sources detected in the nearby Sab galaxy M 81 by the Chandra X-Ray Observatory. The catalog includes source positions, count rates, luminosities, and counterpart identifications, with spectral analysis for the 36 brightest objects. NASA HEASARC created this table in March 2007 based on a 49926-second observation from May 2000.
From 6 August 2010 to 29 September 2010, the WISE telescope scanned approximately 30% of the sky during its 3-Band Cryo survey phase. This list contains predicted associations between known asteroids and comets and over 3.7 billion infrared sources detected in the 3.4, 4.6, and 12 μm bands. The data was produced by NASA's WISE mission.
A point source catalog from Spitzer Space Telescope MIPS 24 and 70 micron imaging of an 11.5 square degree region near the South Ecliptic Pole. The data was processed with APEX software within the MOPEX package, with reliable detections defined as source candidates with S/N > 5 and reduced chi-squared values less than or equal to three. The catalog was produced by the National Aeronautics and Space Administration and was last updated in March 2026.
20,620 galaxies from the provisional extragalactic catalog constructed from the Deep Near Infrared Southern Sky Survey (DENIS). The catalog was created by NASA HEASARC in July 1999 using an automatic galaxy recognition program with an estimated efficiency better than 99%. It contains total I-band magnitude, isophotal diameter, axis ratio, position angle, and a rough morphological type code for each galaxy.
A catalog of infrared point sources from the Galactic Legacy Infrared Mid-Plane Survey Extraordinaire II (GLIMPSEII) mission. The survey imaged the central region of the Milky Way Galaxy with specific latitude and longitude coverage, excluding the very center. Observations were conducted in two epochs in September 2005 and April 2006 by the National Aeronautics and Space Administration.
113 X-ray sources detected in a Chandra observation of the globular cluster NGC 2808, with 16 sources located inside the cluster's half-mass radius. NASA HEASARC created this catalog in February 2009 based on data from observations conducted in June 2007, cross-referenced with earlier XMM-Newton and Hubble Space Telescope data. The data was compiled to classify sources and understand their role in globular cluster evolution.
4660 galactic and extragalactic objects detected by the Far Ultraviolet Space Telescope (FAUST) during the ATLAS-1 space shuttle mission. The catalog lists positions, FUV fluxes, errors, and cross-identifications with stellar and galaxy catalogs, with an estimated incorrect identification rate of less than 2%. This catalog was created at the NASA HEASARC in September 1998.
A catalog of 495 X-ray sources identified as extended emission in the first processing of the ROSAT All-Sky Survey (RASS I), covering the northern celestial region. The National Aeronautics and Space Administration (NASA) provides this data, which includes 378 confirmed galaxy clusters and supplementary findings from a later RASS II analysis. The catalog's parameters were refined using a growth curve analysis (GCA) technique for more precise X-ray flux and source extent measurements.
The Milky Way galaxy is covered by this catalog of 295 known supernova remnants, compiled by D.A. Green and updated to include results published through the end of 2016. The June 2017 version provides basic summary data for each remnant, including designation, position, size, type, and radio flux. NASA's HEASARC ingested this version in July 2017, based on the CDS Catalog VII/278.
NASA HEASARC's Chandra Nearby Spiral Galaxies Point Source Catalog contains results from a survey of 11 nearby, nearly face-on spiral galaxies observed with the Chandra X-ray Observatory. The table, created in November 2006, lists over 820 unique point sources detected within the galaxies' D25 ellipses across 22 observations totaling 869 ks. It includes source counts, fluxes, luminosities, X-ray colors, and variability properties for sources including 17 ultraluminous X-ray sources.
A catalog of 2967 radio sources detected at 1.4 GHz by the Australia Telescope Compact Array over a 26-square-degree region of the sky. The survey achieved a uniform sensitivity with a 1-sigma noise level of approximately 79 microJansky and a detection limit of about 0.5 mJy. This table was created by NASA's HEASARC in November 2012 based on data from the CDS catalog.
113 faint hard X-ray sources, including 86 active galactic nuclei, were detected by merging Swift/BAT and INTEGRAL/IBIS observations. The survey covers 6200 square degrees of sky and was created by NASA HEASARC in August 2012. Its sensitivity is enhanced over individual mission surveys, addressing the unresolved portion of the cosmic X-ray background.
The Hamburg/ROSAT All-Sky Survey (RASS) Catalog lists 5,341 X-ray sources from the ROSAT Bright Source Catalog, covering approximately 10,000 square degrees of the sky at galactic latitudes |b| >= 30 degrees and declination Dec >= 0 degrees. NASA HEASARC produced this table in February 2005 based on source data from the Centre de Données astronomiques de Strasbourg (CDS). For 82% of the selected sources, an optical identification was provided, with AGN representing the largest group at ~42%.
The Chandra Carina Complex Project (CCCP) provides a sensitive X-ray survey of a nearby starburst region over more than 1 square degree. The HEASARC created this table in June 2011 based on a paper in the Astrophysical Journal Supplement, which used a naive Bayes classifier to assign membership probabilities to thousands of X-ray sources. For the adopted decision rule, 75% of sources are classified as Carina members, 11% as contaminants, and 14% remain unclassified.
NASA HEASARC provides a catalog of 96 X-ray sources detected in the Galactic globular cluster NGC 2808 from a 41.8 ks XMM-Newton observation on February 1, 2005. The table, created in February 2009, contains results from spectral and variability analysis used to identify five sources likely related to the cluster, including candidate cataclysmic variables and a quiescent neutron star binary. The data supports comparison with population synthesis models for close binary systems.