A New Sample of Gamma-Ray Emitting Jetted Active Galactic Nuclei—Preliminary Results
We are compiling a new list of gamma-ray jetted active galactic nuclei (AGN), starting from the fourth catalog of point sources of the <i>Fermi</i> 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...
| Main Authors: | , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-10-01
|
| Series: | Universe |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2218-1997/7/10/372 |
| _version_ | 1797513075836846080 |
|---|---|
| author | Luigi Foschini Matthew L. Lister Sonia Antón Marco Berton Stefano Ciroi Maria J. M. Marchã Merja Tornikoski Emilia Järvelä Patrizia Romano Stefano Vercellone Elena Dalla Bontà |
| author_facet | Luigi Foschini Matthew L. Lister Sonia Antón Marco Berton Stefano Ciroi Maria J. M. Marchã Merja Tornikoski Emilia Järvelä Patrizia Romano Stefano Vercellone Elena Dalla Bontà |
| author_sort | Luigi Foschini |
| collection | DOAJ |
| description | We are compiling a new list of gamma-ray jetted active galactic nuclei (AGN), starting from the fourth catalog of point sources of the <i>Fermi</i> 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 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mn>0</mn><mi mathvariant="normal">h</mi></msup><mrow><mo>-</mo><mo>-</mo></mrow><msup><mn>12</mn><mi mathvariant="normal">h</mi></msup></mrow></semantics></math></inline-formula> (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. |
| first_indexed | 2024-03-10T06:09:37Z |
| format | Article |
| id | doaj.art-93e5bb9ad62a47268be5d567ffd42bfb |
| institution | Directory Open Access Journal |
| issn | 2218-1997 |
| language | English |
| last_indexed | 2024-03-10T06:09:37Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Universe |
| spelling | doaj.art-93e5bb9ad62a47268be5d567ffd42bfb2023-11-22T20:14:02ZengMDPI AGUniverse2218-19972021-10-0171037210.3390/universe7100372A New Sample of Gamma-Ray Emitting Jetted Active Galactic Nuclei—Preliminary ResultsLuigi Foschini0Matthew L. Lister1Sonia Antón2Marco Berton3Stefano Ciroi4Maria J. M. Marchã5Merja Tornikoski6Emilia Järvelä7Patrizia Romano8Stefano Vercellone 9Elena Dalla Bontà10Brera Astronomical Observatory, National Institute of Astrophysics (INAF), 23807 Merate, ItalyDepartment of Physics and Astronomy, Purdue University, West Lafayette, IN 47907, USACFisUC, Departamento de Física, Universidade de Coimbra, 3004-516 Coimbra, PortugalEuropean Southern Observatory (ESO), Santiago de Chile 19001, ChileDepartment of Physics and Astronomy, University of Padova, 35122 Padova, ItalyPhysics and Astronomy Department, University College London, London WC1E 6BT, UKMetsähovi Radio Observatory, Aalto University, 02540 Kylmälä, FinlandEuropean Space Astronomy Centre (ESAC), European Space Agency (ESA), 28692 Villanueva de la Cañada, SpainBrera Astronomical Observatory, National Institute of Astrophysics (INAF), 23807 Merate, ItalyBrera Astronomical Observatory, National Institute of Astrophysics (INAF), 23807 Merate, ItalyDepartment of Physics and Astronomy, University of Padova, 35122 Padova, ItalyWe are compiling a new list of gamma-ray jetted active galactic nuclei (AGN), starting from the fourth catalog of point sources of the <i>Fermi</i> 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 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mn>0</mn><mi mathvariant="normal">h</mi></msup><mrow><mo>-</mo><mo>-</mo></mrow><msup><mn>12</mn><mi mathvariant="normal">h</mi></msup></mrow></semantics></math></inline-formula> (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.https://www.mdpi.com/2218-1997/7/10/372BL Lac objectsquasarsSeyfert galaxiesrelativistic jets |
| spellingShingle | Luigi Foschini Matthew L. Lister Sonia Antón Marco Berton Stefano Ciroi Maria J. M. Marchã Merja Tornikoski Emilia Järvelä Patrizia Romano Stefano Vercellone Elena Dalla Bontà A New Sample of Gamma-Ray Emitting Jetted Active Galactic Nuclei—Preliminary Results Universe BL Lac objects quasars Seyfert galaxies relativistic jets |
| title | A New Sample of Gamma-Ray Emitting Jetted Active Galactic Nuclei—Preliminary Results |
| title_full | A New Sample of Gamma-Ray Emitting Jetted Active Galactic Nuclei—Preliminary Results |
| title_fullStr | A New Sample of Gamma-Ray Emitting Jetted Active Galactic Nuclei—Preliminary Results |
| title_full_unstemmed | A New Sample of Gamma-Ray Emitting Jetted Active Galactic Nuclei—Preliminary Results |
| title_short | A New Sample of Gamma-Ray Emitting Jetted Active Galactic Nuclei—Preliminary Results |
| title_sort | new sample of gamma ray emitting jetted active galactic nuclei preliminary results |
| topic | BL Lac objects quasars Seyfert galaxies relativistic jets |
| url | https://www.mdpi.com/2218-1997/7/10/372 |
| work_keys_str_mv | AT luigifoschini anewsampleofgammarayemittingjettedactivegalacticnucleipreliminaryresults AT matthewllister anewsampleofgammarayemittingjettedactivegalacticnucleipreliminaryresults AT soniaanton anewsampleofgammarayemittingjettedactivegalacticnucleipreliminaryresults AT marcoberton anewsampleofgammarayemittingjettedactivegalacticnucleipreliminaryresults AT stefanociroi anewsampleofgammarayemittingjettedactivegalacticnucleipreliminaryresults AT mariajmmarcha anewsampleofgammarayemittingjettedactivegalacticnucleipreliminaryresults AT merjatornikoski anewsampleofgammarayemittingjettedactivegalacticnucleipreliminaryresults AT emiliajarvela anewsampleofgammarayemittingjettedactivegalacticnucleipreliminaryresults AT patriziaromano anewsampleofgammarayemittingjettedactivegalacticnucleipreliminaryresults AT stefanovercellone anewsampleofgammarayemittingjettedactivegalacticnucleipreliminaryresults AT elenadallabonta anewsampleofgammarayemittingjettedactivegalacticnucleipreliminaryresults AT luigifoschini newsampleofgammarayemittingjettedactivegalacticnucleipreliminaryresults AT matthewllister newsampleofgammarayemittingjettedactivegalacticnucleipreliminaryresults AT soniaanton newsampleofgammarayemittingjettedactivegalacticnucleipreliminaryresults AT marcoberton newsampleofgammarayemittingjettedactivegalacticnucleipreliminaryresults AT stefanociroi newsampleofgammarayemittingjettedactivegalacticnucleipreliminaryresults AT mariajmmarcha newsampleofgammarayemittingjettedactivegalacticnucleipreliminaryresults AT merjatornikoski newsampleofgammarayemittingjettedactivegalacticnucleipreliminaryresults AT emiliajarvela newsampleofgammarayemittingjettedactivegalacticnucleipreliminaryresults AT patriziaromano newsampleofgammarayemittingjettedactivegalacticnucleipreliminaryresults AT stefanovercellone newsampleofgammarayemittingjettedactivegalacticnucleipreliminaryresults AT elenadallabonta newsampleofgammarayemittingjettedactivegalacticnucleipreliminaryresults |