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Telescope observations, star catalogs, exoplanet surveys, galaxy morphology, gravitational waves, spectroscopy
2,942 datasets
86 X-ray point sources detected by the Chandra observatory within 8 arcminutes of the center of NGC 6791, an 8-billion-year-old open star cluster. The catalog includes 20 sources identified as proper-motion cluster members, comprising cataclysmic variables, active binaries, and sub-subgiant binaries. Data was collected by NASA's Chandra ACIS instrument on July 1-2, 2004, with follow-up optical spectroscopy in 2005.
The Spitzer Deep, Wide-Field Survey (SDWFS) is a four-epoch infrared survey covering 10 square degrees in the Boötes field. It was conducted using the IRAC instrument on the Spitzer Space Telescope as a Cycle 4 Legacy project. The data, last updated in March 2026, is provided by the National Aeronautics and Space Administration.
A four-epoch infrared survey of 10 square degrees in the Boötes field, conducted using the IRAC instrument on the Spitzer Space Telescope. The Spitzer Cycle 4 Legacy project provides 20 band-matched catalogs reporting Vega magnitudes at 3.6, 4.5, 5.8, and 8 microns. The data, from the National Aeronautics and Space Administration, is designed to characterize galaxy evolution beyond z ~ 1.5.
The CGRO/BATSE 5B Gamma-Ray Burst Spectral Catalog contains results from systematic spectral analyses of 2,145 gamma-ray bursts detected by the Burst and Transient Source Experiment over nine years. It is an official product from the BATSE Science Team, providing a compendium of over 19,000 spectra fitted with five different empirical models. The data files containing complete results are associated with the HEASARC archive.
A catalog of candidate galaxies detected behind the Milky Way from near-infrared photographic surveys. The four volumes (CGMW1-4) list approximately 19,450 galaxies and candidates found across specific galactic longitude ranges, covering over 1,960 square degrees of sky. This database was created by NASA's HEASARC in October 1999 based on data from the CDS Data Center, with underlying research published in the Publications of the Astronomical Society of Japan in 1990 and 1991.
590 square degrees of sky were observed with exposures six times longer than the main 2MASS survey, probing about one magnitude deeper. The merged source tables contain mean positions, magnitudes, and uncertainties for sources detected multiple times, along with statistics for testing source motion and variability. This data was produced by NASA's 2MASS observatory during its final months of operation.
The WBL Poor Galaxy Clusters Catalog contains 732 optically selected, nearby poor clusters of galaxies covering the entire sky north of -3 degrees declination. It was created by White et al. in 1999 and ingested by NASA HEASARC in 2002. The catalog includes redshift data and cross-references to other group and cluster catalogs.
The Spitzer Deep, Wide-Field Survey (SDWFS) is a four-epoch infrared survey covering 10 square degrees in the Boötes field. It was conducted by NASA using the IRAC instrument on the Spitzer Space Telescope as a Cycle 4 Legacy project. The data consists of 20 band-matched catalogs reporting Vega magnitudes in four infrared bands, designed to characterize galaxy evolution beyond redshift 1.5.
Four-epoch infrared survey of 10 square degrees in the Boötes field, permitting the first wide-field selection of infrared-variable objects on timescales of years. The Spitzer Cycle 4 Legacy project data is sensitive to galaxies out to redshift ~3 with reduced cosmic variance impact. Catalogs from the National Aeronautics and Space Administration report Vega magnitudes in four IRAC bands with multiple aperture measurements.
The Boötes field survey covers 10 square degrees of infrared observations from the Spitzer Space Telescope. This catalog from the Spitzer Cycle 4 Legacy project provides four-epoch data for selecting variable objects and studying galaxy evolution out to redshift z ~ 3. The National Aeronautics and Space Administration produced the dataset, which was last updated on 2026-03 13.
An all-sky catalog of 869 nearby galaxies within 11 megaparsecs or with specific radial velocities relative to the Local Group. The catalog, a renewed version of a 2004 work, contains observables like diameters, magnitudes, and fluxes, and derived parameters like masses and environmental indices. This table was created by NASA's HEASARC in June 2013 based on data from the Astronomical Journal.
NASA HEASARC provides a catalog of 158 distinct X-ray point sources detected in a 200-ks Chandra observation of the Groth-Westphal Strip region. The table merges optical and X-ray spectral properties, with optical data primarily from the DEEP2 survey and the Canada-France-Hawaii Telescope Legacy Survey. This catalog was created in July 2007 based on source data from observations conducted in August 2002.
From August 23 through September 24, 2003, the INTEGRAL Observatory conducted a record-breaking sensitivity survey above 20keV. The catalog contains 60 detected sources with fluxes above 1.5 milliCrab, with the nature of 51 sources identified, including 38 low-mass X-ray binaries. This table was created by NASA's HEASARC in February 2005 based on the original CDS catalog.
March 2014 edition of a catalog containing data for 1,166 cataclysmic binaries, 105 low-mass X-ray binaries, and 500 related objects. The HEASARC database table, provided by NASA, splits this into three tables, with this one focusing on cataclysmic binaries. It includes coordinates, magnitudes, orbital parameters, and stellar component data, incorporating literature published before 1 January 2014.
A catalog of 514 radio sources detected at 610 MHz in a 1-square-degree deep field. The table contains 557 entries, including 17 sources with multiple components, derived from Giant Metrewave Radio Telescope observations with 6-arcsecond resolution. NASA HEASARC created this table in February 2012 based on the CDS catalog J/A+A/463/519.
The HST Planned and Archived Exposures Catalog (PAEC) provides a summary of all approved Hubble Space Telescope observations, including both completed and planned exposures. It is compiled by the Space Telescope Science Institute (STScI) from their Archive and Proposal databases and is updated by NASA HEASARC, usually within one month of the source data being modified. The catalog includes observations from the current cycle and those reserved for Guaranteed Time Observer programs in upcoming cycles.
229 ultraluminous X-ray sources (ULXs) cataloged from the astronomy literature as of April 2004. This catalog, created by NASA's HEASARC, provides properties of ULXs, their multi-wavelength counterparts, and their host galaxies. Most sources are likely stellar-mass black hole binaries, with some possibly being intermediate-mass black holes or background objects.
Four-epoch infrared survey of 10 square degrees in the Boötes field, permitting the selection of variable and high proper motion objects over timescales of years. The Spitzer Cycle 4 Legacy project data consists of 20 band-matched catalogs with Vega magnitudes for four IRAC bands. SDWFS is sensitive to galaxies out to z ~ 3 with relatively little impact from cosmic variance.
A 66.3 ksec Chandra X-Ray Observatory observation from 2001 July 2-3 provides a catalog of 107 X-ray point sources in the Chamaeleon I North cloud. The catalog, created by NASA HEASARC in 2007, includes 27 previously recognized pre-main-sequence cloud members and 3 PMS brown dwarfs. It achieved a limiting X-ray luminosity of log L_t ~ 10^27 ergs/s in a 0.8 x 0.8 pc^2 region.
4,934 radio sources detected in the Lockman Hole field using the Giant Metrewave Radio Telescope at 610 MHz. The catalog combines earlier observations of a central ~5 square degree area with new observations covering a further ~8 square degrees, for a total of ~14 square degrees. The table was created by NASA's HEASARC in February 2012 based on data from CDS Catalog J/BASI/38/103.