A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Peaked sources and narrow-line Seyfert 1s: A love story
Tekijät: Berton Marco, Järvelä Emilia
Kustantaja: WILEY-V C H VERLAG GMBH
Julkaisuvuosi: 2021
Lehti: Astronomical Notes / Astronomische Nachrichten
Lehden akronyymi: ASTRON NACHR
Vuosikerta: 342
Numero: 9-10
Aloitussivu: 1066
Lopetussivu: 1070
Sivujen määrä: 5
ISSN: 0004-6337
eISSN: 1521-3994
DOI: https://doi.org/10.1002/asna.20210036
Verkko-osoite: https://onlinelibrary.wiley.com/doi/10.1002/asna.20210036
Rinnakkaistallenteen osoite: https://research.utu.fi/converis/portal/detail/Publication/68302204
The first similarities between peaked sources (PS) and narrow-line Seyfert 1 (NLS1) galaxies were noticed already 20 years ago. Nowadays, it is known that several sources can share both classifications, and that part of the parent population of gamma-ray emitting NLS1s could be hiding among PS. In this brief review, we describe how and why this orientation-based unification was developed. We also show how the recent discovery of absorbed radio jets in NLS1s basically invisible at frequencies below 10 GHz, could impact our knowledge of PS and, in particular, render the widely used radio-loudness parameter obsolete.
Ladattava julkaisu This is an electronic reprint of the original article. |  |
