Photoionized emission and absorption features in the high-resolution X-ray spectra of NGC 3783
Our Swift monitoring program triggered two joint XMM-Newton, NuSTAR, and HST observations on 11 and 21 December 2016 targeting NGC 3783 because its soft X-ray continuum was heavily obscured. Consequently, emission features, including the O VII radiative recombination continuum, stand out above the d...
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| Veröffentlicht in: | Astronomy and astrophysics (Berlin) 2019, Vol.621, p.A99 |
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| creator | Mao, Junjie Mehdipour, M. Kaastra, J. S. Costantini, E. Pinto, C. Branduardi-Raymont, G. Behar, E. Peretz, U. Bianchi, S. Kriss, G. A. Ponti, G. De Marco, B. Petrucci, P.-O. Di Gesu, L. Middei, R. Ebrero, J. Arav, N. |
| description | Our Swift monitoring program triggered two joint XMM-Newton, NuSTAR, and HST observations on 11 and 21 December 2016 targeting NGC 3783 because its soft X-ray continuum was heavily obscured. Consequently, emission features, including the O VII radiative recombination continuum, stand out above the diminished continuum. We focus on the photoionized emission features in the December 2016 Reflection Grating Spectrometer (RGS) spectra, and compare them to the time-averaged RGS spectrum obtained in 2000–2001 when the continuum was unobscured. A two-phase photoionized plasma is required to account for the narrow emission features. These narrow emission features are weakly varying between 2000–2001 and December 2016. We also find a statistically significant broad emission component in the time-averaged RGS spectrum in 2000–2001. This broad emission component is significantly weaker in December 2016, suggesting that the obscurer is farther away than the X-ray broad-line region. In addition, by analyzing the archival high-resolution X-ray spectra, we find that nine photoionized absorption components with different ionization parameters and kinematics are required for the warm absorber in X-rays. |
| doi_str_mv | 10.1051/0004-6361/201833191 |
| format | Article |
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S. ; Costantini, E. ; Pinto, C. ; Branduardi-Raymont, G. ; Behar, E. ; Peretz, U. ; Bianchi, S. ; Kriss, G. A. ; Ponti, G. ; De Marco, B. ; Petrucci, P.-O. ; Di Gesu, L. ; Middei, R. ; Ebrero, J. ; Arav, N.</creator><creatorcontrib>Mao, Junjie ; Mehdipour, M. ; Kaastra, J. S. ; Costantini, E. ; Pinto, C. ; Branduardi-Raymont, G. ; Behar, E. ; Peretz, U. ; Bianchi, S. ; Kriss, G. A. ; Ponti, G. ; De Marco, B. ; Petrucci, P.-O. ; Di Gesu, L. ; Middei, R. ; Ebrero, J. ; Arav, N.</creatorcontrib><description>Our Swift monitoring program triggered two joint XMM-Newton, NuSTAR, and HST observations on 11 and 21 December 2016 targeting NGC 3783 because its soft X-ray continuum was heavily obscured. Consequently, emission features, including the O VII radiative recombination continuum, stand out above the diminished continuum. We focus on the photoionized emission features in the December 2016 Reflection Grating Spectrometer (RGS) spectra, and compare them to the time-averaged RGS spectrum obtained in 2000–2001 when the continuum was unobscured. A two-phase photoionized plasma is required to account for the narrow emission features. These narrow emission features are weakly varying between 2000–2001 and December 2016. We also find a statistically significant broad emission component in the time-averaged RGS spectrum in 2000–2001. This broad emission component is significantly weaker in December 2016, suggesting that the obscurer is farther away than the X-ray broad-line region. In addition, by analyzing the archival high-resolution X-ray spectra, we find that nine photoionized absorption components with different ionization parameters and kinematics are required for the warm absorber in X-rays.</description><identifier>ISSN: 0004-6361</identifier><identifier>EISSN: 1432-0746</identifier><identifier>EISSN: 1432-0756</identifier><identifier>DOI: 10.1051/0004-6361/201833191</identifier><language>eng</language><publisher>Heidelberg: EDP Sciences</publisher><subject>Absorption ; Emission ; galaxies: active ; galaxies: individual: NGC 3783 ; galaxies: Seyfert ; High resolution ; Ionization ; Kinematics ; Photoionization ; Radiative recombination ; Sciences of the Universe ; Soft x rays ; techniques: spectroscopic ; X ray spectra ; X-rays ; X-rays: galaxies ; XMM (spacecraft)</subject><ispartof>Astronomy and astrophysics (Berlin), 2019, Vol.621, p.A99</ispartof><rights>Copyright EDP Sciences Jan 2019</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3751-d007763d554859c7ca3a1c5e0f3fe0250dda7fd719707f6ee4d9c997a457718d3</citedby><cites>FETCH-LOGICAL-c3751-d007763d554859c7ca3a1c5e0f3fe0250dda7fd719707f6ee4d9c997a457718d3</cites><orcidid>0000-0003-2743-6632 ; 0000-0002-4622-4240 ; 0000-0001-5924-8818 ; 0000-0001-7557-9713 ; 0000-0001-5540-2822 ; 0000-0002-4992-4664 ; 0000-0003-2532-7379 ; 0000-0002-2180-8266 ; 0000-0001-9815-9092 ; 0000-0001-6061-3480 ; 0000-0002-9384-846X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,776,780,881,3714,4010,27900,27901,27902</link.rule.ids><backlink>$$Uhttps://hal.science/hal-03014169$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Mao, Junjie</creatorcontrib><creatorcontrib>Mehdipour, M.</creatorcontrib><creatorcontrib>Kaastra, J. S.</creatorcontrib><creatorcontrib>Costantini, E.</creatorcontrib><creatorcontrib>Pinto, C.</creatorcontrib><creatorcontrib>Branduardi-Raymont, G.</creatorcontrib><creatorcontrib>Behar, E.</creatorcontrib><creatorcontrib>Peretz, U.</creatorcontrib><creatorcontrib>Bianchi, S.</creatorcontrib><creatorcontrib>Kriss, G. A.</creatorcontrib><creatorcontrib>Ponti, G.</creatorcontrib><creatorcontrib>De Marco, B.</creatorcontrib><creatorcontrib>Petrucci, P.-O.</creatorcontrib><creatorcontrib>Di Gesu, L.</creatorcontrib><creatorcontrib>Middei, R.</creatorcontrib><creatorcontrib>Ebrero, J.</creatorcontrib><creatorcontrib>Arav, N.</creatorcontrib><title>Photoionized emission and absorption features in the high-resolution X-ray spectra of NGC 3783</title><title>Astronomy and astrophysics (Berlin)</title><description>Our Swift monitoring program triggered two joint XMM-Newton, NuSTAR, and HST observations on 11 and 21 December 2016 targeting NGC 3783 because its soft X-ray continuum was heavily obscured. Consequently, emission features, including the O VII radiative recombination continuum, stand out above the diminished continuum. 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In addition, by analyzing the archival high-resolution X-ray spectra, we find that nine photoionized absorption components with different ionization parameters and kinematics are required for the warm absorber in X-rays.</description><subject>Absorption</subject><subject>Emission</subject><subject>galaxies: active</subject><subject>galaxies: individual: NGC 3783</subject><subject>galaxies: Seyfert</subject><subject>High resolution</subject><subject>Ionization</subject><subject>Kinematics</subject><subject>Photoionization</subject><subject>Radiative recombination</subject><subject>Sciences of the Universe</subject><subject>Soft x rays</subject><subject>techniques: spectroscopic</subject><subject>X ray spectra</subject><subject>X-rays</subject><subject>X-rays: galaxies</subject><subject>XMM (spacecraft)</subject><issn>0004-6361</issn><issn>1432-0746</issn><issn>1432-0756</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNo9kE9PwzAMxSMEEmPwCbhE4sShzG7Spj1OAzbENBDi34koNCntGEtJOsT49KQM7WQ9-_cs-xFyjHCGkOAAAHiUshQHMWDGGOa4Q3rIWRyB4Oku6W2JfXLg_TzIOIA98nJb2dbWdln_GE3NR-19EFQtNVWv3rqm7WRpVLtyxtN6SdvK0Kp-q6Kg7WL1N3-OnFpT35iidYraks7GI8pExg7JXqkW3hz91z55uLy4H02i6c34ajScRgUTCUYaQIiU6SThWZIXolBMYZEYKFlpIE5AayVKLTAXIMrUGK7zIs-F4okQmGnWJ6ebvZVayMbVH8qtpVW1nAynsusBA-SY5l8Y2JMN2zj7uTK-lXO7cstwnoxR8ADmnAWKbajCWe-dKbdrEWQXuuwilV2kcht6cEUbV-1b8721KPcuUxFelRk8ydn07vGcj6_lhP0CROeBLw</recordid><startdate>2019</startdate><enddate>2019</enddate><creator>Mao, Junjie</creator><creator>Mehdipour, M.</creator><creator>Kaastra, J. 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S.</au><au>Costantini, E.</au><au>Pinto, C.</au><au>Branduardi-Raymont, G.</au><au>Behar, E.</au><au>Peretz, U.</au><au>Bianchi, S.</au><au>Kriss, G. A.</au><au>Ponti, G.</au><au>De Marco, B.</au><au>Petrucci, P.-O.</au><au>Di Gesu, L.</au><au>Middei, R.</au><au>Ebrero, J.</au><au>Arav, N.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Photoionized emission and absorption features in the high-resolution X-ray spectra of NGC 3783</atitle><jtitle>Astronomy and astrophysics (Berlin)</jtitle><date>2019</date><risdate>2019</risdate><volume>621</volume><spage>A99</spage><pages>A99-</pages><issn>0004-6361</issn><eissn>1432-0746</eissn><eissn>1432-0756</eissn><abstract>Our Swift monitoring program triggered two joint XMM-Newton, NuSTAR, and HST observations on 11 and 21 December 2016 targeting NGC 3783 because its soft X-ray continuum was heavily obscured. Consequently, emission features, including the O VII radiative recombination continuum, stand out above the diminished continuum. We focus on the photoionized emission features in the December 2016 Reflection Grating Spectrometer (RGS) spectra, and compare them to the time-averaged RGS spectrum obtained in 2000–2001 when the continuum was unobscured. A two-phase photoionized plasma is required to account for the narrow emission features. These narrow emission features are weakly varying between 2000–2001 and December 2016. We also find a statistically significant broad emission component in the time-averaged RGS spectrum in 2000–2001. This broad emission component is significantly weaker in December 2016, suggesting that the obscurer is farther away than the X-ray broad-line region. In addition, by analyzing the archival high-resolution X-ray spectra, we find that nine photoionized absorption components with different ionization parameters and kinematics are required for the warm absorber in X-rays.</abstract><cop>Heidelberg</cop><pub>EDP Sciences</pub><doi>10.1051/0004-6361/201833191</doi><orcidid>https://orcid.org/0000-0003-2743-6632</orcidid><orcidid>https://orcid.org/0000-0002-4622-4240</orcidid><orcidid>https://orcid.org/0000-0001-5924-8818</orcidid><orcidid>https://orcid.org/0000-0001-7557-9713</orcidid><orcidid>https://orcid.org/0000-0001-5540-2822</orcidid><orcidid>https://orcid.org/0000-0002-4992-4664</orcidid><orcidid>https://orcid.org/0000-0003-2532-7379</orcidid><orcidid>https://orcid.org/0000-0002-2180-8266</orcidid><orcidid>https://orcid.org/0000-0001-9815-9092</orcidid><orcidid>https://orcid.org/0000-0001-6061-3480</orcidid><orcidid>https://orcid.org/0000-0002-9384-846X</orcidid><oa>free_for_read</oa></addata></record> |
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| ispartof | Astronomy and astrophysics (Berlin), 2019, Vol.621, p.A99 |
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| source | Bacon EDP Sciences France Licence nationale-ISTEX-PS-Journals-PFISTEX; EDP Sciences; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Absorption Emission galaxies: active galaxies: individual: NGC 3783 galaxies: Seyfert High resolution Ionization Kinematics Photoionization Radiative recombination Sciences of the Universe Soft x rays techniques: spectroscopic X ray spectra X-rays X-rays: galaxies XMM (spacecraft) |
| title | Photoionized emission and absorption features in the high-resolution X-ray spectra of NGC 3783 |
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