An X-ray spectral study of the origin of reflection features in bare Seyfert 1 galaxy ESO 511--G030

dc.contributor.authorGhosh, Ritesh
dc.contributor.authorLaha, Sibasish
dc.date.accessioned2021-01-21T18:26:27Z
dc.date.available2021-01-21T18:26:27Z
dc.date.issued2020-12-19
dc.description.abstractThe reprocessed X-ray emission from Active Galactic Nuclei (AGN) is an important diagnostic tool to study the dynamics and geometry of the matter surrounding the supermassive black holes (SMBHs). We present a broadband (optical-UV to hard X-ray) spectral study of the bare Seyfert 1 galaxy, ESO~511--G030, using multi-epoch Suzaku and XMM-Newton data from 2012 and 2007 respectively. The broadband spectra of ESO~511--G030 exhibit a UV bump, a prominent soft-excess below 2 keV, a relatively broad (σ=0.08−0.14 keV) Fe emission line at 6.4 keV and a weak Compton hump at E > 10 keV. The soft X-ray excess in ESO~511--G030 can be described either as the thermal Comptonization of disk seed photons by a warm (0.40+0.02−0.02 keV), optically thick (τ=12.7⁺⁰.⁵₋₀.₄) and compact (<15rg) corona or as the blurred reflection from an untruncated and moderate to highly ionized accretion disk. However, for the blurred reflection, the model requires some extreme configuration of the disk and corona. Both these models prefer a rapidly spinning black hole (a>0.78) and a compact corona, indicating a relativistic origin of the broad Fe emission line. We found an inner disk temperature of ∼2−3 eV that characterises the UV bump and the SMBH accretes at a sub-Eddington rate (λEdd=0.004−0.008).en_US
dc.description.sponsorshipThe authors are grateful to the anonymous referee for insightful comments which improved the quality of the paper. RG acknowledges the financial support from Visva-Bharati University and IUCAA visitor programme.en_US
dc.description.urihttps://arxiv.org/abs/2012.10620en_US
dc.format.extent14 pagesen_US
dc.genrejournal articles preprintsen_US
dc.identifierdoi:10.13016/m2y88s-iwmx
dc.identifier.citationGhosh, Ritesh; Laha, Sibasish; An X-ray spectral study of the origin of reflection features in bare Seyfert 1 galaxy ESO 511--G030; High Energy Astrophysical Phenomena; https://arxiv.org/abs/2012.10620en_US
dc.identifier.urihttp://hdl.handle.net/11603/20576
dc.language.isoen_USen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Center for Space Sciences and Technology
dc.relation.ispartofUMBC Physics Department
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
dc.rightsAttribution 4.0 International (CC BY 4.0)*
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/*
dc.titleAn X-ray spectral study of the origin of reflection features in bare Seyfert 1 galaxy ESO 511--G030en_US
dc.typeTexten_US

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