Found 174 datasets matching "agn".
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The VLA-COSMOS 3 GHz AGN catalog includes classification and selected physical properties for the 3 GHz radio sample with optical/NIR counterparts (7 903 sources in total). For more information...
Search relevance: 108.99 | Views last month: 0 -
In this work, the authors present the most comprehensive INTEGRAL active galactic nucleus (AGN) sample. It lists 272 AGN for which they have secure optical identifications, precise optical...
Search relevance: 106.16 | Views last month: 1 -
The INTEGRAL mission provides a large data set for studying the hard X-ray properties of AGN and allows testing the unified scheme for AGN. This table contains some of the results from the...
Search relevance: 105.76 | Views last month: 1 -
In the most recent IBIS survey based on observations performed during the first 1000 orbits of INTEGRAL, there are listed 363 high-energy emitters firmly associated with AGN, 107 of which are...
Search relevance: 105.58 | Views last month: 0 -
This table comprises CAIXA, the "Catalog of AGN In the XMM-Newton Archive". It consists of all the radio-quiet, X-ray unobscured (N<sub>H</sub> < 2 x 10<sup>22</sup> cm<sup>-2</sup>) active...
Search relevance: 100.76 | Views last month: 0 -
The Tartarus database contains the results of a detailed but systematic analysis of ASCA observations of active galactic nuclei (AGN). It contains source and background events files, spectra,...
Search relevance: 100.60 | Views last month: 0 -
This table contains the RXTE All-Sky Slew Survey Catalog of AGN and AGN candidates. The catalog authors compiled a sample of 95 AGNs which were serendipitously detected in the 3-20 keV band at...
Search relevance: 97.48 | Views last month: 0 -
This web page shows the light curves of a total of 163 AGNs that are monitored by KAIT with average cadence of 3 days. These are unfiltered observations; in practice, they correspond roughly to...
Search relevance: 96.99 | Views last month: 0 -
This table contains the observed-frame optical, near-infrared, and mid-infrared properties of X-ray-selected active galactic nuclei (AGN) in the Lockman Hole. Using a likelihood ratio method on...
Search relevance: 96.63 | Views last month: 2 -
This table contains the results from a study of the multi-wavelength (from the mid-infrared to the hard X-ray) properties of a sample of 255 spectroscopically identified X-ray selected Type-2 AGN...
Search relevance: 96.44 | Views last month: 0 -
The authors searched the public archive of the Chandra X-ray Observatory as of 2016 March and assembled a sample of 719 galaxies within 50 Mpc with available Advanced CCD Imaging Spectrometer...
Search relevance: 93.24 | Views last month: 0 -
The authors of this catalog have developed the S<sub>IX</sub> statistic to identify bright, highly likely active galactic nucleus (AGN) candidates solely on the basis of Wide-field Infrared Survey...
Search relevance: 92.52 | Views last month: 0 -
X-ray surveys are a key instrument in the study of active galactic nuclei (AGN). Thanks to their penetrating ability, X-rays are able to map the innermost regions close to the central super...
Search relevance: 92.51 | Views last month: 0 -
X-ray surveys contain sizable numbers of star-forming galaxies, beyond the AGN which usually make up the majority of detections. Many methods to separate the two populations are used in the...
Search relevance: 90.03 | Views last month: 0 -
This table contains the results from a study of the X-ray to optical properties of a sample of 545 X-ray selected Type 1 AGN, from the XMM-Newton Cosmic Evolution (XMM-COSMOS) survey, over a wide...
Search relevance: 86.56 | Views last month: 0 -
This table contains the results from an analysis of the largest high-redshift (z > 3) X-ray-selected active galactic nucleus (AGN) sample to date, combining the Chandra Cosmological Evolution...
Search relevance: 86.15 | Views last month: 8 -
The authors compare the relative merits of active galactic nuclei (AGN) selection at X-ray and mid-infrared wavelengths using data from moderately deep fields observed by both Chandra and Spitzer....
Search relevance: 85.83 | Views last month: 0 -
This is the third update to the fourth catalog of active galactic nuclei (AGNs) detected by the Fermi Large Area Telescope (LAT). This version (4LAC-DR3) derives from the third data release of the...
Search relevance: 84.86 | Views last month: 1 -
X-ray emission from active galactic nuclei (AGN) is dominated by the accretion disk around a supermassive black hole. The radio luminosity, however, has not such a clear origin except in the most...
Search relevance: 84.86 | Views last month: 0 -
Bright XMM-Newton data are combined with the Chandra Deep Field South observations to explore the behavior of the intrinsic AGN absorption, as a function of redshift and luminosity. The sample...
Search relevance: 82.14 | Views last month: 0
