• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

The ACTSOUTH catalog is a multi-frequency, multi-epoch catalog of extragalactic sources, based on 150, 220 and 280 GHz observations carried out in 2008, 2009 and 2010 using the Millimeter...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

The catalog of 4195 optically confirmed Sunyaev-Zel'dovich (SZ) selected galaxy clusters were detected with signal-to-noise > 4 in 13,211 deg² of sky surveyed by the Atacama Cosmology...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

This table contains a list of extragalactic radio sources detected in a 455 square-degree map of the southern sky made at a frequency of 148 GHz from the Atacama Cosmology Telescope (ACT) 2008...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

This table contains a catalog of 191 extragalactic sources detected by the Atacama Cosmology Telescope (ACT) at 148 and/or 218 GHz in the 2008 Southern survey. Flux densities span 14 -1700 mJy,...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-03-31

The High Energy Astrophysics Science Archive Research Center (HEASARC) and the Legacy Archive for Microwave Background Data Analysis (LAMBDA) have merged into a single organization that will use...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

Sugizaki et al. (2001) have published a study of faint X-ray sources that were resolved in the ASCA Galactic Plane Survey and their contribution to the galactic ridge X-ray emission, and the...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

Galaxy clusters are an important tool for cosmology, and their detection and characterization are key goals for current and future surveys. Using data from the Wide-field Infrared Survey Explorer...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-04-23

The High Energy Astrophysics Science Archive Research Center (HEASARC) is the primary archive for NASA missions dealing with extremely energetic phenomena, from black holes to the Big Bang.

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

This database table contains the 13th edition of the Catalog of Quasars and Active Galactic Nuclei by Veron-Cetty and Veron, and is an update of the previous versions. As in the previous editions,...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

This table contains the ROSAT North Ecliptic Pole (NEP) Survey list of optical identifications. The X-ray data around the NEP from the ROSAT All-Sky Survey (RASS) were used to construct a...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

The ROSAT North Ecliptic Pole (NEP) Survey of Active Galactic Nuclei (AGN) Catalog is an X-ray flux-limited sample of 219 AGN discovered in the contiguous 80.7 square degrees region of the ROSAT...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

This table is the ROSAT-ESO Flux-Limited X-Ray (REFLEX) Galaxy Cluster Survey Catalog. The REFLEX Cluster Survey provides information on the X-ray properties, redshifts, and some identification...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

The international COSMOS (Cosmic Evolution) survey (Scoville et al. 2007, ApJS, 172, 1) is a panchromatic imaging and spectroscopic survey of a 1.4 degree by 1.4 degree field designed to probe...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

Infrared 3.6 - 8.0 micron (µm) images of the Extended Groth Strip (EGS) yield plausible counterpart identifications for all but one of 510 radio sources in the AEGIS20 S(1.4 GHz) > 50 microJansky...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

This table contains the first results on field X-ray sources detected in a deep, 184.7 ks observation with the Advanced CCD Imaging Spectrometer (ACIS-I) on the Chandra X-Ray Observatory. The...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

Using a deep Australia Telescope Compact Array (ATCA) radio survey covering an area of ~3 deg² to a 4-sigma sensitivity of >= 100 µJy (µJy) at 1.4 GHz, the authors study the nature of...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

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 through very dense observational...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

The authors have built a catalog of 219 Fanaroff and Riley class I edge-darkened radio galaxies (FR Is), called FRICAT, that is selected from a published sample and obtained by combining...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

The Phoenix Deep Survey (PDS) is a multi-wavelength galaxy survey based on deep 1.4-GHz radio imaging. The revised version of the radio source catalog was published by Hopkins et al. (2003). The...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-10

This catalog contains some of the results of an investigation into the X-ray properties of radio-intermediate and radio-loud quasars (RIQs and RLQs, respectively). The authors have combined large,...

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