• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-17

The authors studied the X-ray properties of the young (~1-8M yr) open cluster around the hot (O8 III) star Lambda Ori and compared them with those of the similarly-aged Sigma Ori cluster in order...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-07-17

This data set contains the ion densities and temperatures along with formal 1 Sigma errors obtained from Voyager 2 PLS data (voltage range 10-5950 eV/Q) at Uranus by fitting the measured spectra...

• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-17

This table contains the Massive Star-forming Regions (MSFRs) Omnibus X-ray Catalog (MOXC), a compendium of X-ray point sources from Chandra/ACIS observations of a selection of MSFRs across the...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-17

This table records the start and stop times of the uninterrupted observation intervals obtained by the three detectors on board of HaloSat and provides access to the HaloSat observations...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-17

This table records high-level information for the observations obtained with HaloSat and provides access to the HaloSat data archive. HaloSat is the first astrophysics-focused CubeSat funded by...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-17

This table contains the results from an X-ray and optical analysis of 188 active galactic nuclei (AGN) identified from 497 hard X-ray (observed flux in the (2.0 - 8.0 keV) band > 2.7 x...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-17

This table contains the BAX X-Ray Galaxy Clusters and Groups Catalog. BAX (`Base de Donnees Amas de Galaxies X': see <a href="http://bax.ast.obs-mip.fr/">http://bax.ast.obs-mip.fr/</a> for more...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-17

This table contains some of the results from a deep Chandra observation of the central regions of the late-type barred spiral galaxy NGC 2903. The Chandra data reveal soft (kT_e ~ 0.2 -...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-17

This table contains the 5th edition of the Roma-BZCAT catalog of blazars which contains coordinates and multi-frequency data of 3561 sources. It presents several relevant changes with respect to...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-17

Chandra ACIS-S3 (Advanced CCD Imaging Spectrometer) observations of the nearby S0 galaxy NGC 1332 resolve much of the X-ray emission into 73 point sources, of which 37 lie within the...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-17

In a correlation study of the ROSAT All-Sky Survey Bright Source Catalog (RASS-BSC, <a href="https://cdsarc.cds.unistra.fr/ftp/cats/XI/10">CDS Cat. <XI/10></a>, the HEASARC table RASSBSC) with the...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2025-12-30T00:00:00.000+00:00

This dataset includes physical and biochemical oceanographic observational data from the Hawaii Ocean Time-series (HOT) Program, including thermosalinograph, CTD, bottle and biochemical data. The...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-17

Utilizing ASCA archival data of about 300 objects - elliptical galaxies, groups, and clusters of galaxies - the authors performed systematic measurements of the X-ray properties of hot gas in...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-17

The formation and evolution of cosmic structures can be probed by studying the evolution of the luminosity function of the Active Galactic Nuclei (AGNs), galaxies and clusters of galaxies and of...

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• Organization: Department of Agriculture
• Updated: 2025-11-21

To determine whether colony populations of Lasioderma serricorne (cigarette beetle, CB) and Sitophilus oryzae (rice weevil, RW) vectored microbes, and to identify possible interactions with...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-17

This table contains some of the results from a Chandra ACIS sub-arcsecond resolution X-ray observation of the archetypal merger radio galaxy NGC 1316 (Fornax A). The authors detect 81 point...

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• Organization: Department of the Interior
• Updated: 2021-01-11T00:00:00Z

Mechanical fuel treatments are a primary pre-fire strategy for potentially mitigating the threat of wildland fire, yet there is limited information on how they impact shrubland ecosystems. This...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-17

This catalog is the complete ROSAT PSPC Source List of X-ray sources found in two surveys of M 31 reported by Supper et al. (1997, 2001). These papers reported the results of the analysis of the...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1994-01-01T00:00:00.000+00:00

At dawn on June 15, 1991, a cataclysmic eruption began with a tremendous explosion that destroyed ten deserted villages. This eruption deposited approximately 5 to 7 km3 of volcanic fragments in...

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