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