eprintid: 1420273
rev_number: 31
eprint_status: archive
userid: 608
dir: disk0/01/42/02/73
datestamp: 2014-03-04 14:04:11
lastmod: 2021-09-30 22:31:09
status_changed: 2014-03-04 14:04:11
type: proceedings_section
metadata_visibility: show
item_issues_count: 0
creators_name: Branduardi Raymont, G
creators_name: Petrucci, PO
creators_name: Paltani, S
creators_name: Malzac, J
creators_name: Kaastra, J
creators_name: Cappi, M
creators_name: Ponti, G
creators_name: de Marco, B
creators_name: Kriss, G
creators_name: Steenbrugge, K
creators_name: Bianchi, S
creators_name: Mehdipour, M
creators_name: Costantini, E
creators_name: Dadina, M
creators_name: Lubinski, P
title: Multiwavelength campaign on Mrk 509: testing realistic comptonization models
ispublished: pub
divisions: UCL
divisions: B04
divisions: C06
divisions: F63
note: © 2012 The Authors. Publication available under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 licence (CC BY-NC-SA) described at http://creativecommons.org/licenses/by-nc-sa/3.0/.
abstract: Mrk 509 was observed by XMM-Newton and INTEGRAL in October/November 2009, with one observation every four days for a total of ten observations. Each observation has been fitted with a realistic thermal Comptonization model for the continuum emission. Prompted by the correlation between the UV and soft X-ray flux, we used a thermal Comptonization component for the soft X-ray excess. The UV to X-ray/gamma-ray emission of Mrk 509 can be well fitted by these components, pointing to the existence of a hot (kT ∼ 100 keV), optically-thin (τ ∼ 0.5) corona producing the primary continuum. In contrast, the soft X-ray component requires a warm (kT ∼ 1 keV), optically-thick (τ ∼ 10-20) plasma. Estimates of the amplification ratio for this warm plasma support a configuration relatively close to the “theoretical” configuration of a slab corona above a passive disk. This plasma could be the warm upper layer of the accretion disk. In contrast, the hot corona has a more photon-starved geometry. The high temperature (∼ 100 eV) of the soft-photon field entering and cooling it favors a localization of the hot corona in the inner flow. This soft-photon field could be part of the comptonized emission produced by the warm plasma.
date: 2012
official_url: http://pos.sissa.it/cgi-bin/reader/conf.cgi?confid=176
vfaculties: VMPS
oa_status: green
full_text_type: pub
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_source: Manually entered
elements_id: 932066
lyricists_name: Branduardi Raymont, Graziella
lyricists_id: GBRAN40
full_text_status: public
pagerange: -
pages: 6
event_title: Integral 2012: An INTEGRAL view of the high-energy sky (the first 10 years) - 9th INTEGRAL Workshop and celebration of the 10th anniversary of the launch
event_location: Paris, France
event_dates: 2012-10-15 - 2012-10-19
book_title: Proceedings of 'An INTEGRAL view of the high-energy sky (the first 10 years)' - 9th INTEGRAL Workshop and celebration of the 10th anniversary of the launch (INTEGRAL 2012)
citation:        Branduardi Raymont, G;    Petrucci, PO;    Paltani, S;    Malzac, J;    Kaastra, J;    Cappi, M;    Ponti, G;                                 ... Lubinski, P; + view all <#>        Branduardi Raymont, G;  Petrucci, PO;  Paltani, S;  Malzac, J;  Kaastra, J;  Cappi, M;  Ponti, G;  de Marco, B;  Kriss, G;  Steenbrugge, K;  Bianchi, S;  Mehdipour, M;  Costantini, E;  Dadina, M;  Lubinski, P;   - view fewer <#>    (2012)    Multiwavelength campaign on Mrk 509: testing realistic comptonization models.                     In:  Proceedings of 'An INTEGRAL view of the high-energy sky (the first 10 years)' - 9th INTEGRAL Workshop and celebration of the 10th anniversary of the launch (INTEGRAL 2012).  (pp. -).         Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/1420273/1/INTEGRAL%202012_063.pdf