The WISSH quasar project XII. X-ray view of the most luminous quasi-stellar objects at Cosmic Noon

[Aims] To improve our knowledge of the nuclear emission of luminous quasi-stellar objects (QSOs) at Cosmic Noon, we studied the X-ray emission of the WISE/SDSS-selected hyper-luminous (WISSH) QSO sample. It consists of 85 broad-line active galactic nuclei (AGN) with bolometric luminosities Lbol >...

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Detalles Bibliográficos
Autores: Degli Agosti, C., Vignali, Cristian, Piconcelli, Enrico, Zappacosta, L., Bertola, E., Middei, Riccardo, Saccheo, I., Vietri, G., Vito, F., Bongiorno, A., Bischetti, M., Bruni, G., Carniani, S., Cresci, G., Feruglio, C., Salvestrini, F., Travascio, A., Gaspari, M., Glikman, E., Kammoun, E., Lanzuisi, G., Laurenti, Marco, Miniutti, Giovanni, Pinto, C., Testa, V., Tombesi, Francesco, Tortosa, A., Fiore, F.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/412631
Acceso en línea:http://hdl.handle.net/10261/412631
Access Level:acceso abierto
Palabra clave:Galaxies: active
Galaxies: high-redshift
Quasars: general
Quasars: supermassive black holes
X-rays: galaxies
Descripción
Sumario:[Aims] To improve our knowledge of the nuclear emission of luminous quasi-stellar objects (QSOs) at Cosmic Noon, we studied the X-ray emission of the WISE/SDSS-selected hyper-luminous (WISSH) QSO sample. It consists of 85 broad-line active galactic nuclei (AGN) with bolometric luminosities Lbol > few × 1047 erg s−1 at z ≈ 2 − 4. Our goal is to characterise their X-ray spectral properties and investigate the relation between the X-ray luminosity and the energy output in other bands. To this end, we compared the nuclear properties of powerful QSOs with those derived for the majority of the AGN population.

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