110 datasets found for "Youth--Statistics"
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Federal
CANDELS H-Band Selected Chandra Source Catalog
National Aeronautics and Space Administration —
Improving the capabilities of detecting faint X-ray sources is fundamental to increase the statistics on faint high-z AGN and star-forming galaxies. The authors... -
Federal
Large Quasar Astrometric Catalog, 3rd Release
National Aeronautics and Space Administration —
Since the release of the original Large Quasar Astrometric Catalog (LQAC: Souchay et al. 2009, A&A, 494, 815), a large number of quasars have been discovered... -
Federal
Optically-Selected QSOS NVSS-Detected Source Catalog
National Aeronautics and Space Administration —
The authors used the 1.4-GHz NRAO VLA Sky Survey (NVSS) to study radio sources in two color-selected QSO samples: a volume-limited sample of 1,313 QSOs defined by Mi... -
Federal
GALEX/SDSS Quasar Catalog
National Aeronautics and Space Administration —
This table contains the result of an analysis of the broad-band UV and optical properties of z ~< 3.4 quasars matched in the Galaxy Evolution Explorer (GALEX)... -
Federal
SACY (Search for Associations Containing Young Stars) Catalog
National Aeronautics and Space Administration —
The SACY (Search for Associations Containing Young Stars) Catalog contains the results from a high-resolution optical spectroscopic survey aimed to search for nearby... -
Federal
Green Catalog of Galactic SNRs (June 2017 Version)
National Aeronautics and Space Administration —
This catalog of known Galactic supernova remnants (SNRs) is an updated version of the catalogs of Galactic SNRs presented in detail in Green (1984, 1988), in summary... -
Federal
COSMOS Field VLBA Observations 1.4-GHz Source Catalog
National Aeronautics and Space Administration —
This table contains the results of a project using wide-field Very Long Baseline Interferometry (VLBI) observations at 1.4 GHz of 2,865 known radio sources in the... -
Federal
PPM-XL Bright M Dwarfs Catalog
National Aeronautics and Space Administration —
Using the Position and Proper Motion Extended-L (PPMXL) catalog, the authors have used optical and near-infrared color cuts together with a reduced proper motion cut... -
Federal
VLA-COSMOS 3-GHz Large Project Source Catalog
National Aeronautics and Space Administration —
This table contains some of the results from the VLA-COSMOS 3-GHz Large Project based on 384 hours of observations with the Karl G. Jansky Very Large Array (VLA) at 3... -
Federal
M 31 Bulge Chandra X-Ray Point Source Catalog
National Aeronautics and Space Administration —
The authors explore the population of X-ray point sources in the bulge of M 31 so as to contrast properties of various subpopulations, such as persistent and... -
Federal
Planck High-Redshift Source Candidates Catalog
National Aeronautics and Space Administration —
The Planck mission, thanks to its large frequency range and all-sky coverage, has a unique potential for systematically detecting the brightest, and rarest, sub-... -
Federal
M 83 Chandra X-Ray Binary Classifications Using HST
National Aeronautics and Space Administration —
Building on recent work by Chandar+ (2020, J/ApJ/890/150), the authors constructed X-ray luminosity functions (XLFs) for different classes of X-ray binary (XRB)... -
Federal
Palomar-Green Catalog of UV-Excess Stellar Objects
National Aeronautics and Space Administration —
The Palomar-Green Catalog of UV-Excess Stellar Objects provides positions (the original_ra and original_dec parameters) accurate to about 8 arcsec in each coordinate,... -
Federal
LMC N11 Giant HII Region Chandra X-Ray Point Source Catalog
National Aeronautics and Space Administration —
A very sensitive X-ray investigation of the giant H II region N11 in the Large Magellanic Cloud (LMC) was performed using the Chandra X-ray Observatory in which 165... -
Federal
Chandra ACIS GSG Point-Like X-Ray Source Catalog
National Aeronautics and Space Administration —
The Chandra archival data are a valuable resource for various studies on different X-ray astronomy topics. In this paper, the authors utilize this wealth of... -
Federal
VLA Goulds Belt Survey Orion Complex Source Catalog
National Aeronautics and Space Administration —
This table contains results from a high-sensitivity (60 µJy), large-scale (2.26 deg2) survey obtained with the Karl G. Jansky Very Large Array (JVLA) as part of the... -
Federal
MassiveYoungStar-FormingComplexStdyinIR&X-Rays:MYStIXProbComplexMbrs
National Aeronautics and Space Administration —
The Massive Young Star-forming complex Study in Infrared and X-rays (MYStIX) project requires samples of young stars that are likely members of 20 nearby Galactic... -
Federal
Galactic Center Chandra X-Ray Point Source Catalog
National Aeronautics and Space Administration —
This table contains a catalog of 9017 X-ray sources identified in Chandra observations of a 2 degrees by 0.8 degrees field around the Galactic center. This enlarges... -
Federal
VLA Low-Frequency Sky Survey Redux Source Catalog
National Aeronautics and Space Administration —
The Very Large Array (VLA) Low-Frequency Sky Survey (VLSS: see Cohen et al. 2007, AJ, 134, 1245) covers 95% of the 3 pi sr of sky area above -30 degrees Declination... -
Federal
Chandra ACIS Survey of Nearby Galaxies X-Ray Point Source Catalog
National Aeronautics and Space Administration —
The Chandra data archive is a treasure trove for various studies, and in this study the author exploits this valuable resource to study the X-ray point source...
110 datasets found for "Youth--Statistics"