Foschini, Luigi;
Lister, Matthew L;
Anton, Sonia;
Berton, Marco;
Ciroi, Stefano;
Marcha, Maria JM;
Tornikoski, Merja;
... Dalla Bonta, Elena; + view all
(2021)
A New Sample of Gamma-Ray Emitting Jetted Active Galactic Nuclei—Preliminary Results.
Universe
, 7
(10)
, Article 372. 10.3390/universe7100372.
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Abstract
We are compiling a new list of gamma-ray jetted active galactic nuclei (AGN), starting from the fourth catalog of point sources of the Fermi Large Area Telescope (LAT). Our aim is to prepare a list of jetted AGN with known redshifts and classifications to be used to calibrate jet power. We searched in the available literature for all the published optical spectra and multiwavelength studies useful to characterize the sources. We found new, missed, or even forgotten information leading to a substantial change in the redshift values and classification of many sources. We present here the preliminary results of this analysis and some statistics based on the gamma-ray sources with right ascension within the interval 0h–12h (J2000). Although flat-spectrum radio quasars and BL Lac objects are still the dominant populations, there is a significant increase in the number of other objects, such as misaligned AGN, narrow-line Seyfert 1 galaxies, and Seyfert galaxies. We also introduced two new classes of objects: changing-look AGN and ambiguous sources. About one third of the sources remain unclassified
| Type: | Article |
|---|---|
| Title: | A New Sample of Gamma-Ray Emitting Jetted Active Galactic Nuclei—Preliminary Results |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.3390/universe7100372 |
| Publisher version: | https://doi.org/10.3390/universe7100372 |
| Language: | English |
| Additional information: | © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/) |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10181300 |
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