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Telescope observations, star catalogs, exoplanet surveys, galaxy morphology, gravitational waves, spectroscopy
2,941 datasets
SAFARI 2000 Fire Emission Data provides emission ratios and factors for 13 trace gases from ten African savanna fires, measured during the 2000 dry season. The University of Montana collected this data using airborne Fourier transform infrared spectroscopy (AFTIR) aboard a Convair-580 aircraft. This dataset represents the first broad characterization of abundant trace gases in nascent smoke from this region.
NASA HEASARC provides the source catalog from the Nuclear Spectroscopic Telescope Array (NuSTAR) survey of the Extended Chandra Deep Field South. The catalog contains 49 significant sources detected in the 3-24 keV band, with redshifts from 0.21 to 2.7 and rest-frame 10-40 keV luminosities spanning (0.7 - 300) x 10^43 erg/s. This table was created in September 2017 based on observations taken between 2012 September and 2013 April.
12 years of gamma-ray data above 50 MeV form the basis for this third update to the Fermi Large Area Telescope's fourth AGN catalog. The 4LAC-DR3 version contains 3,407 high-latitude active galactic nuclei with updated spectral parameters, energy distributions, and light curves. NASA HEASARC ingested the table in February 2010 and last updated it in June 2023 using data from the Fermi Science Support Center.
722 possible optical counterparts for 370 X-ray point sources from two 10-degree fields in the ROSAT All-Sky Survey. The catalog was created by NASA researchers using optical variability analysis on hundreds of archival photographic plates to identify 256 probable matches, including active galactic nuclei, cataclysmic variables, and stars. The data table combines results from two fields, one at high galactic latitude and one at low galactic latitude.
Over 16,000 known or suspected OB stars are compiled in this all-sky catalog, extending the original Case-Hamburg surveys. The catalog contains UBV photometry, MK spectral type classifications, and radial velocities for these objects. This database was created by NASA HEASARC, with its origins in 1991 and a final table creation in September 2017.
1143 true and probable planetary nebulae and 347 possible candidates are listed in this 1992 catalog. The database was created by NASA's HEASARC in May 2001 based on the CDS Catalog V/84. It uses a standardized IAU designation system for object names based on galactic coordinates.
58 X-ray point sources, supernova remnants, and H II regions detected in the central 6 kpc region of galaxy NGC 2403 using archival Chandra observations totaling ~180 ks. The catalog was created by NASA using data from four observations between 2001 and 2004, with sources identified via a signal-to-noise ratio threshold and spectral fitting. The distribution of X-ray emission is compared to morphology at other wavelengths using Spitzer, GALEX, and H-alpha imagery.
125,071 galaxies from the final release of the 6dF Galaxy Survey, providing a near-complete sample of the southern sky. The catalog contains 136,304 spectra yielding 110,256 new extragalactic redshifts and supersedes the previous DR2 version. It was created by NASA HEASARC in March 2011 based on data from the CDS catalog.
Three regions totaling 520 square degrees were surveyed with the Ryle Telescope at 15 GHz to identify foreground sources for the Very Small Array's cosmic microwave background observations. The catalog contains 465 sources above a 25 mJy completeness limit, with a subset of 242 sources within three specific circular fields covering 286.5 square degrees. This table was created by NASA HEASARC in November 2010 based on data from the Monthly Notices of the Royal Astronomical Society.
BAX (Base de Donnees Amas de Galaxies X) is a multi-wavelength database dedicated to X-ray clusters and groups of galaxies. The catalog, created by NASA's HEASARC in October 2004, provides access to published measurements of physical quantities like coordinates, redshift, flux, luminosity, and temperature, along with bibliographic references. It is designed to support astronomical research from proposal planning to data interpretation using facilities like XMM-Newton, Chandra, and Planck.
The 9th Cambridge survey catalog of 643 radio sources observed at 15.2 GHz using the Ryle Telescope, created by NASA HEASARC in November 2010. The data covers multiple survey regions with areas of 529, 115, and 29 square degrees, complete to flux density limits of approximately 25, 10, and 5.5 mJy, respectively. The catalog was compiled to support the Very Small Array cosmic microwave background telescope and includes matched data from the 1.4 GHz NVSS catalog.
The Chandra bulge field observations target the central quarter of the Galactic Plane. The catalog contains 2596 X-ray point source candidates from ~900 ks of total exposure time using the Chandra ACIS-I instrument, retrieved from 10 archived data sets taken between May and August 2008. The analysis aims to constrain the nature of these sources and their contribution to the Galactic Ridge X-ray emission in the hard band.
The Small Magellanic Cloud survey provides X-ray data covering 6.32 square degrees of the bar and eastern wing. This catalog contains 3,053 unique X-ray point sources, including 49 confirmed high-mass X-ray binaries and 72 active galactic nuclei, detected in 100 observations between April 2000 and April 2010. It was produced by the National Aeronautics and Space Administration using the XMM-Newton satellite.
NASA's HEASARC provides a refined set of 652 binary star systems with reliable orbits and determined parallaxes. The dataset, created in October 2014, includes three mass estimates (dynamical, photometric, spectroscopic), main orbital elements, and component magnitudes and spectral types. It was compiled from the Observatorio Astronomico Ramon Maria Aller Catalog (OARMAC), the Sixth Catalog of Orbits of Visual Binary Stars (ORB6), and updated information from the Washington Double Star (WDS) Catalog and SIMBAD.
5.8 Ms of Chandra X-ray observations reveal 4442 point sources across 38 nearby galaxies. The catalog supports analysis of X-ray luminosity functions for high-mass and low-mass binary populations. NASA HEASARC created this table in April 2023 based on published astrophysical research.
846 radio-quiet quasars detected by the ROSAT satellite's All-Sky Survey or pointed observations, compiled by Yuan et al. in 1998. The catalog includes X-ray flux densities, photon indices, and absorption column densities derived from ROSAT data, with optical positions sourced from the 1993 Veron-Cetty & Veron catalog. NASA's HEASARC created this database in December 1998 based on the original publication.
A catalog of 1,691 High Synchrotron Peaked blazars and candidates, assembled by cross-matching multi-wavelength surveys and applying spectral slope criteria. The 2WHSP sample was created by the authors of the referenced paper and ingested by NASA's HEASARC in February 2017. It is described as the largest and most complete list of HSP blazars available to date.
A 2019 catalog from NASA HEASARC details the X-ray properties of 105 supernova remnants in the M 33 galaxy, detected using an eight-field XMM-Newton mosaic survey. The study includes 54 newly X-ray-detected remnants and three newly discovered ones, with detailed spectral fitting for 15 objects using combined XMM-Newton and Chandra data. The authors used this sample to construct an X-ray luminosity function and analyze environmental effects on remnant detectability.
The 2XMMi/SDSS Galaxy Cluster Survey is a catalog of 530 X-ray-selected galaxy groups and clusters compiled by cross-matching the XMM-Newton Serendipitous Source Catalog with optical data from the Sloan Digital Sky Survey. The catalog, hosted by NASA, provides photometric and spectroscopic redshifts, X-ray fluxes, luminosities, temperatures, and cluster mass estimates. It includes 345 clusters with spectroscopic X-ray parameters and 185 with catalog-derived fluxes, superseding a previous release of 175 clusters.
73 XMM-Newton and 28 Chandra detections of point-like X-ray sources in the starburst galaxy IC 10, with observations from 2003. The catalog was created by the HEASARC in October 2011 based on source files from the CDS.