X-ray spectral model from clumpy torus and its application to Circinus galaxy
We construct an X-ray spectral model for the clumpy torus in an active galactic nucleus (AGN), utilizing the Monte Carlo simulation for Astrophysics and Cosmology framework (MONACO: Odaka et al.2016). The geometry of the torus is the same as that in Nenkova et al. (2008), which assumes a power law d...
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| Veröffentlicht in: | Proceedings of the International Astronomical Union 2019-11, Vol.15 (S341), p.314-315 |
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| creator | Tanimoto, Atsushi |
| description | We construct an X-ray spectral model for the clumpy torus in an active galactic nucleus (AGN), utilizing the Monte Carlo simulation for Astrophysics and Cosmology framework (MONACO: Odaka et al.2016). The geometry of the torus is the same as that in Nenkova et al. (2008), which assumes a power law distribution of clumps in the radial direction and a normal distribution in the elevation direction. We apply our model to the broadband X-ray spectrum of the Circinus galaxy observed with XMM-Newton, Suzaku, and NuSTAR. Our model can well reproduce the observed X-ray spectrum, yielding a hydrogen column density along the line-of-sight ${N_{\rm{H}}^{\rm{LOS}}} = 4.86_{ - 0.04}^{ + 0.07} \times {10^{24}}$ cm−2 and a torus angular width ${sigma = 14.7_{ - 0.39}^{ + 0.44}}$ degree. |
| doi_str_mv | 10.1017/S1743921319002382 |
| format | Article |
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The geometry of the torus is the same as that in Nenkova et al. (2008), which assumes a power law distribution of clumps in the radial direction and a normal distribution in the elevation direction. We apply our model to the broadband X-ray spectrum of the Circinus galaxy observed with XMM-Newton, Suzaku, and NuSTAR. Our model can well reproduce the observed X-ray spectrum, yielding a hydrogen column density along the line-of-sight ${N_{\rm{H}}^{\rm{LOS}}} = 4.86_{ - 0.04}^{ + 0.07} \times {10^{24}}$ cm−2 and a torus angular width ${sigma = 14.7_{ - 0.39}^{ + 0.44}}$ degree.</description><identifier>ISSN: 1743-9213</identifier><identifier>EISSN: 1743-9221</identifier><identifier>DOI: 10.1017/S1743921319002382</identifier><language>eng</language><publisher>Cambridge, UK: Cambridge University Press</publisher><subject>Active galactic nuclei ; Astronomy ; Astrophysics ; Broadband ; Clumps ; Computer simulation ; Contributed Papers ; Cosmology ; Galaxies ; Line of sight ; Monte Carlo simulation ; Normal distribution ; Toruses ; X ray spectra ; XMM (spacecraft)</subject><ispartof>Proceedings of the International Astronomical Union, 2019-11, Vol.15 (S341), p.314-315</ispartof><rights>International Astronomical Union 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c184t-96e18f54244a87b34479b59db45a515ccb3334d9ed0475b3afd89403be7dd2f73</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.cambridge.org/core/product/identifier/S1743921319002382/type/journal_article$$EHTML$$P50$$Gcambridge$$H</linktohtml><link.rule.ids>164,314,776,780,27901,27902,55603</link.rule.ids></links><search><creatorcontrib>Tanimoto, Atsushi</creatorcontrib><title>X-ray spectral model from clumpy torus and its application to Circinus galaxy</title><title>Proceedings of the International Astronomical Union</title><addtitle>Proc. 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Our model can well reproduce the observed X-ray spectrum, yielding a hydrogen column density along the line-of-sight ${N_{\rm{H}}^{\rm{LOS}}} = 4.86_{ - 0.04}^{ + 0.07} \times {10^{24}}$ cm−2 and a torus angular width ${sigma = 14.7_{ - 0.39}^{ + 0.44}}$ degree.</description><subject>Active galactic nuclei</subject><subject>Astronomy</subject><subject>Astrophysics</subject><subject>Broadband</subject><subject>Clumps</subject><subject>Computer simulation</subject><subject>Contributed Papers</subject><subject>Cosmology</subject><subject>Galaxies</subject><subject>Line of sight</subject><subject>Monte Carlo simulation</subject><subject>Normal distribution</subject><subject>Toruses</subject><subject>X ray spectra</subject><subject>XMM 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Our model can well reproduce the observed X-ray spectrum, yielding a hydrogen column density along the line-of-sight ${N_{\rm{H}}^{\rm{LOS}}} = 4.86_{ - 0.04}^{ + 0.07} \times {10^{24}}$ cm−2 and a torus angular width ${sigma = 14.7_{ - 0.39}^{ + 0.44}}$ degree.</abstract><cop>Cambridge, UK</cop><pub>Cambridge University Press</pub><doi>10.1017/S1743921319002382</doi><tpages>2</tpages></addata></record> |
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| language | eng |
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| source | Cambridge University Press Journals Complete |
| subjects | Active galactic nuclei Astronomy Astrophysics Broadband Clumps Computer simulation Contributed Papers Cosmology Galaxies Line of sight Monte Carlo simulation Normal distribution Toruses X ray spectra XMM (spacecraft) |
| title | X-ray spectral model from clumpy torus and its application to Circinus galaxy |
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