Changing-Look Narrow-Line Seyfert 1 Galaxies, their Detection with SVOM, and the Case of NGC 1566
We discuss applications of the study of the new and barely explored class of changing-look (CL) narrow-line Seyfert 1 (NLS1) galaxies and comment on their detection with the space mission SVOM (Space Variable Objects Monitor). We highlight the case of NGC 1566, which is outstanding in many respects,...
| Main Authors: | , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-01-01
|
| Series: | Universe |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2218-1997/10/2/61 |
| _version_ | 1797296866729132032 |
|---|---|
| author | D. W. Xu S. Komossa D. Grupe J. Wang L. P. Xin X. H. Han J. Y. Wei J. Y. Bai E. Bon F. Cangemi B. Cordier M. Dennefeld L. C. Gallo W. Kollatschny De-Feng Kong M. W. Ochmann Y. L. Qiu N. Schartel |
| author_facet | D. W. Xu S. Komossa D. Grupe J. Wang L. P. Xin X. H. Han J. Y. Wei J. Y. Bai E. Bon F. Cangemi B. Cordier M. Dennefeld L. C. Gallo W. Kollatschny De-Feng Kong M. W. Ochmann Y. L. Qiu N. Schartel |
| author_sort | D. W. Xu |
| collection | DOAJ |
| description | We discuss applications of the study of the new and barely explored class of changing-look (CL) narrow-line Seyfert 1 (NLS1) galaxies and comment on their detection with the space mission SVOM (Space Variable Objects Monitor). We highlight the case of NGC 1566, which is outstanding in many respects, for instance as one of the nearest known CL AGN undergoing exceptional outbursts. Its NLS1 nature is discussed, and we take it as a nearby prototype for systems that could be discovered and studied in the near future, including with SVOM. Finally, we briefly examine the broader implications and applications of CL events in NLS1 galaxies and show that such systems, once discovered in larger numbers, will greatly advance our understanding of the physics of the environment of rapidly growing supermassive black holes. This White Paper is part of a sequence of publications which explore aspects of our understanding of (CL) NLS1 galaxy physics with future missions. |
| first_indexed | 2024-03-07T22:11:00Z |
| format | Article |
| id | doaj.art-5722199c256d4cd89ab22cca1196b00d |
| institution | Directory Open Access Journal |
| issn | 2218-1997 |
| language | English |
| last_indexed | 2024-03-07T22:11:00Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Universe |
| spelling | doaj.art-5722199c256d4cd89ab22cca1196b00d2024-02-23T15:36:44ZengMDPI AGUniverse2218-19972024-01-011026110.3390/universe10020061Changing-Look Narrow-Line Seyfert 1 Galaxies, their Detection with SVOM, and the Case of NGC 1566D. W. Xu0S. Komossa1D. Grupe2J. Wang3L. P. Xin4X. H. Han5J. Y. Wei6J. Y. Bai7E. Bon8F. Cangemi9B. Cordier10M. Dennefeld11L. C. Gallo12W. Kollatschny13De-Feng Kong14M. W. Ochmann15Y. L. Qiu16N. Schartel17Key Laboratory of Space Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, ChinaMax–Planck Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, GermanyDepartment of Physics, Geology, and Engineering Technology, Northern Kentucky University, 1 Nunn Drive, Highland Heights, KY 41099, USAGuangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science and Technology, Guangxi University, Nanning 530004, ChinaKey Laboratory of Space Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, ChinaKey Laboratory of Space Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, ChinaKey Laboratory of Space Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, ChinaKey Laboratory of Space Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, ChinaAstronomical Observatory Belgrade, Volgina 7, 11060 Belgrade, SerbiaSorbonne Université, CNRS/IN2P3, Laboratoire de Physique Nucléaire et de Hautes Energies, LPNHE, 4 Place Jussieu, 75005 Paris, FranceCEA-Saclay, IRFU/Departement d’Astrophysique, 91191 Gif-sur-Yvette, FranceInstitut d′Astrophysique de Paris, Sorbonne Université, CNRS, UMR 7095, 98 bis bd Arago, 75014 Paris, FranceDepartment of Astronomy and Physics, Saint Mary’s University, 923 Robie Street, Halifax, NS B3H 3C3, CanadaInstitut für Astrophysik und Geophysik, Universität Göttingen, Friedrich-Hund Platz 1, 37077 Göttingen, GermanyGuangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science and Technology, Guangxi University, Nanning 530004, ChinaInstitut für Astrophysik und Geophysik, Universität Göttingen, Friedrich-Hund Platz 1, 37077 Göttingen, GermanyKey Laboratory of Space Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, ChinaESA, European Space Astronomy Centre (ESAC), Villanueva de la Cañada, E-28692 Madrid, SpainWe discuss applications of the study of the new and barely explored class of changing-look (CL) narrow-line Seyfert 1 (NLS1) galaxies and comment on their detection with the space mission SVOM (Space Variable Objects Monitor). We highlight the case of NGC 1566, which is outstanding in many respects, for instance as one of the nearest known CL AGN undergoing exceptional outbursts. Its NLS1 nature is discussed, and we take it as a nearby prototype for systems that could be discovered and studied in the near future, including with SVOM. Finally, we briefly examine the broader implications and applications of CL events in NLS1 galaxies and show that such systems, once discovered in larger numbers, will greatly advance our understanding of the physics of the environment of rapidly growing supermassive black holes. This White Paper is part of a sequence of publications which explore aspects of our understanding of (CL) NLS1 galaxy physics with future missions.https://www.mdpi.com/2218-1997/10/2/61active galactic nucleiSeyfert galaxiesNGC 1566broad-line regionsupermassive black holesspace mission SVOM |
| spellingShingle | D. W. Xu S. Komossa D. Grupe J. Wang L. P. Xin X. H. Han J. Y. Wei J. Y. Bai E. Bon F. Cangemi B. Cordier M. Dennefeld L. C. Gallo W. Kollatschny De-Feng Kong M. W. Ochmann Y. L. Qiu N. Schartel Changing-Look Narrow-Line Seyfert 1 Galaxies, their Detection with SVOM, and the Case of NGC 1566 Universe active galactic nuclei Seyfert galaxies NGC 1566 broad-line region supermassive black holes space mission SVOM |
| title | Changing-Look Narrow-Line Seyfert 1 Galaxies, their Detection with SVOM, and the Case of NGC 1566 |
| title_full | Changing-Look Narrow-Line Seyfert 1 Galaxies, their Detection with SVOM, and the Case of NGC 1566 |
| title_fullStr | Changing-Look Narrow-Line Seyfert 1 Galaxies, their Detection with SVOM, and the Case of NGC 1566 |
| title_full_unstemmed | Changing-Look Narrow-Line Seyfert 1 Galaxies, their Detection with SVOM, and the Case of NGC 1566 |
| title_short | Changing-Look Narrow-Line Seyfert 1 Galaxies, their Detection with SVOM, and the Case of NGC 1566 |
| title_sort | changing look narrow line seyfert 1 galaxies their detection with svom and the case of ngc 1566 |
| topic | active galactic nuclei Seyfert galaxies NGC 1566 broad-line region supermassive black holes space mission SVOM |
| url | https://www.mdpi.com/2218-1997/10/2/61 |
| work_keys_str_mv | AT dwxu changinglooknarrowlineseyfert1galaxiestheirdetectionwithsvomandthecaseofngc1566 AT skomossa changinglooknarrowlineseyfert1galaxiestheirdetectionwithsvomandthecaseofngc1566 AT dgrupe changinglooknarrowlineseyfert1galaxiestheirdetectionwithsvomandthecaseofngc1566 AT jwang changinglooknarrowlineseyfert1galaxiestheirdetectionwithsvomandthecaseofngc1566 AT lpxin changinglooknarrowlineseyfert1galaxiestheirdetectionwithsvomandthecaseofngc1566 AT xhhan changinglooknarrowlineseyfert1galaxiestheirdetectionwithsvomandthecaseofngc1566 AT jywei changinglooknarrowlineseyfert1galaxiestheirdetectionwithsvomandthecaseofngc1566 AT jybai changinglooknarrowlineseyfert1galaxiestheirdetectionwithsvomandthecaseofngc1566 AT ebon changinglooknarrowlineseyfert1galaxiestheirdetectionwithsvomandthecaseofngc1566 AT fcangemi changinglooknarrowlineseyfert1galaxiestheirdetectionwithsvomandthecaseofngc1566 AT bcordier changinglooknarrowlineseyfert1galaxiestheirdetectionwithsvomandthecaseofngc1566 AT mdennefeld changinglooknarrowlineseyfert1galaxiestheirdetectionwithsvomandthecaseofngc1566 AT lcgallo changinglooknarrowlineseyfert1galaxiestheirdetectionwithsvomandthecaseofngc1566 AT wkollatschny changinglooknarrowlineseyfert1galaxiestheirdetectionwithsvomandthecaseofngc1566 AT defengkong changinglooknarrowlineseyfert1galaxiestheirdetectionwithsvomandthecaseofngc1566 AT mwochmann changinglooknarrowlineseyfert1galaxiestheirdetectionwithsvomandthecaseofngc1566 AT ylqiu changinglooknarrowlineseyfert1galaxiestheirdetectionwithsvomandthecaseofngc1566 AT nschartel changinglooknarrowlineseyfert1galaxiestheirdetectionwithsvomandthecaseofngc1566 |