Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Fausto Vagnetti"'
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 4 (2017)
We present the second Multi-Epoch X-ray Serendipitous AGN Sample (MEXSAS2), extracted from the 6th release of the XMM Serendipitous Source Catalog (XMMSSC-DR6), cross-matched with Sloan Digital Sky Survey quasar Catalogs DR7Q and DR12Q. Our sample al
Externí odkaz:
https://doaj.org/article/74303f7a14f24849a4d18eebba6c09d9
Autor:
Francesca Panessa, Elia Chiaraluce, Gabriele Bruni, Daniele Dallacasa, Ari Laor, Ranieri D Baldi, Ehud Behar, Ian McHardy, Francesco Tombesi, Fausto Vagnetti
A wide-frequency radio study of Active Galactic Nuclei (AGN) is crucial to evaluate the intervening radiative mechanisms responsible for the observed emission and relate them with the underlying accretion physics. We present wide frequency (5-45 GHz)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::10a1e08b0f8bad2b41d4df35cc8770e4
http://hdl.handle.net/2108/302427
http://hdl.handle.net/2108/302427
Autor:
Gabriele Bruni, Francesco Tombesi, E. Chiaraluce, Fausto Vagnetti, Ian M. McHardy, Ehud Behar, Francesca Panessa, Ranieri D. Baldi
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 495:3943-3960
A thorough study of radio emission in Active Galactic Nuclei (AGN) is of fundamental importance to understand the physical mechanisms responsible for the emission and the interplay between accretion and ejection processes. High frequency radio observ
Autor:
Francesco Tombesi, E. Chiaraluce, M. Orienti, H. Rampadarath, Marcello Giroletti, Francesca Panessa, Gabriele Bruni, Fausto Vagnetti
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 485:3185-3202
A strong effort has been devoted to understand the physical origin of radio emission from low-luminosity AGN (LLAGN), but a comprehensive picture is still missing. We used high-resolution ($\le$1 arcsec), multi-frequency (1.5, 5.5, 9 and 14 GHz) NSF'
Ultra-fast outflows (UFOs) play a key role in the AGN feedback mechanism. It is therefore important to fully characterize their location and energetics. We study the UFO in the latest XMM-Newton archival observation of the NLSy1 galaxy PG 1448+273 by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9cbc0600c7630821d6d486e839ab6d04
http://hdl.handle.net/2108/257904
http://hdl.handle.net/2108/257904
Most of the variability studies of active galactic nuclei (AGNs) are based on ensemble analyses. Nevertheless, it is interesting to provide estimates of the individual variability properties of each AGN, in order to relate them with intrinsic physica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa5974a9a640739ecf1f19ddf888c57e
http://arxiv.org/abs/2010.05624
http://arxiv.org/abs/2010.05624
Autor:
G. A. Matzeu, A. Zaino, A. Marinucci, R. Serafinelli, Giovanni Miniutti, Francesco Tombesi, Francesco Ursini, Stefano Bianchi, Fausto Vagnetti, P.-O. Petrucci, R. Middei
Publikováno v:
DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacial
instname
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2020, 635, pp.A18. ⟨10.1051/0004-6361/201936701⟩
Astron.Astrophys.
Astron.Astrophys., 2020, 635, pp.A18. ⟨10.1051/0004-6361/201936701⟩
Instituto Nacional de Técnica Aeroespacial (INTA)
Digital.CSIC. Repositorio Institucional del CSIC
instname
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2020, 635, pp.A18. ⟨10.1051/0004-6361/201936701⟩
Astron.Astrophys.
Astron.Astrophys., 2020, 635, pp.A18. ⟨10.1051/0004-6361/201936701⟩
Instituto Nacional de Técnica Aeroespacial (INTA)
Digital.CSIC. Repositorio Institucional del CSIC
The soft X-ray band of many active galactic nuclei (AGNs) is affected by obscuration due to partially ionised matter crossing our line of sight. In this context, two past XMM-Newton observations (6 months apart) and a simultaneous NuSTAR-Swift ($\sim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42ab72028029315e1d1dda28f686c44a
http://arxiv.org/abs/2001.03979
http://arxiv.org/abs/2001.03979
The Catalina Real-Time Transients Survey (CRTS) has observed a large fraction of the sky (∼33000 deg2), detecting more than 500 million objects several times, so providing a statistically consistent database of multi-epoch observations of various G
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c948c48487ecfcdb2c69b98c71f99e4
http://hdl.handle.net/2108/249267
http://hdl.handle.net/2108/249267
Autor:
Francesco G. Saturni, Massimo Gaspari, Francesco Tombesi, Roberto Serafinelli, Enrico Piconcelli, Fausto Vagnetti
Substantial evidence in the last few decades suggests that outflows from supermassive black holes (SMBH) may play a significant role in the evolution of galaxies.Large-scale outflows known as warm absorbers (WA) and fast disk winds known as ultra-fas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba7e04c077f0e88624336ae1e8d371ff
http://arxiv.org/abs/1906.02765
http://arxiv.org/abs/1906.02765
Context. We have investigated the dichotomy between jetted and non-jetted active galactic nuclei (AGNs), focusing on the fundamental differences of these two classes in the accretion physics onto the central supermassive black hole (SMBH). We tested
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc5041db54b9db9cf4cb304fa6809258
http://hdl.handle.net/20.500.12386/29547
http://hdl.handle.net/20.500.12386/29547