An Eddington-limited Accretion Disk Wind in the Narrow-line Seyfert 1 PG 1448+273

Autor: J. N. Reeves, V. Braito, A. Luminari, D. Porquet, M. Laurenti, G. Matzeu, A. Lobban, S. Hagen

Publikováno v: The Astrophysical Journal, Vol 974, Iss 1, p 58 (2024)

PG 1448+273 is a luminous, nearby ( z = 0.0645), narrow-line Seyfert 1 galaxy, which likely accretes close to the Eddington limit. Previous X-ray observations of PG 1448+273 with XMM-Newton in 2017 and NuSTAR in 2022 revealed the presence of an ultra

Externí odkaz: https://doaj.org/article/7995d10d59e34018b3b354c71ba64668

A New Emulated Monte Carlo Radiative Transfer Disk-Wind Model: X-Ray Accretion Disk-wind Emulator -- XRADE

Autor: G A Matzeu, M Lieu, M T Costa, J N Reeves, V Braito, M Dadina, E Nardini, P G Boorman, M L Parker, S A Sim, D Barret, E Kammoun, R Middei, M Giustini, M Brusa, J Pérez Cabrera, S Marchesi

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2022, 515, pp.6172-6190. ⟨10.1093/mnras/stac2155⟩

We present a new X-Ray Accretion Disk-wind Emulator (\textsc{xrade}) based on the 2.5D Monte Carlo radiative transfer code which provides a physically-motivated, self-consistent treatment of both absorption and emission from a disk-wind by computing

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f069c8bcd01da113e3649eb3994c20a
http://arxiv.org/abs/2207.13731

Dramatic changes in the observed velocity of the accretion disk wind in MCG-03-58-007 are revealed by XMM-Newton and NuSTAR

Autor: V. Braito, J. N. Reeves, G. Matzeu, P. Severgnini, L. Ballo, C. Cicone, R. Della Ceca, M. Giustini, M. Sirressi

Past X-ray observations of the nearby Seyfert 2 MCG-03-58-007 revealed the presence of a powerful and highly variable disk wind, where two possible phases outflowing with $v_{\rm out1}/c\sim -0.07$ and $v_{\rm out2}/c\sim -0.2$ were observed. Multi-e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9ff814d4fbf66ac5297130690af8471
http://arxiv.org/abs/2111.04559

Variable oxygen emission from the accretion disk of Mrk 110

Autor: J. N. Reeves, Andrew Lobban, D. Porquet, Valentina Braito, Nicolas Grosso

Publikováno v: Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2021, 649, pp.L3. ⟨10.1051/0004-6361/202140953⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2021, 649, pp.L3. ⟨10.1051/0004-6361/202140953⟩

Six XMM-Newton observations of the bright narrow line Seyfert 1, Mrk 110, from 2004-2020, are presented. The analysis of the grating spectra from the Reflection Grating Spectrometer (RGS) reveals a broad component of the He-like Oxygen (OVII) line, w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38a4d145cbc6633674e6cb24f0330287
http://hdl.handle.net/20.500.12386/32283

The flaring X-ray corona in the quasar PDS 456

Autor: E. Nardini, G. A. Matzeu, Valentina Braito, Andrew Lobban, J. N. Reeves, D. Porquet

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 500 (2), pp.1974-1991. ⟨10.1093/mnras/staa3377⟩
Monthly Notices of the Royal Astronomical Society, 2020, 500 (2), pp.1974-1991. ⟨10.1093/mnras/staa3377⟩

New Swift monitoring observations of the variable, radio-quiet quasar, PDS 456, are presented. A bright X-ray flare was captured in September 2018, the flux increasing by a factor of 4 and with a doubling time-scale of 2 days. From the light crossing

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::915654a5948be825b751814e64003291
http://arxiv.org/abs/2010.14295