The X-ray view of optically selected dual AGN
We present a study of optically selected dual AGN with projected separations of 3--97~kpc. Using multi-wavelength (MWL) information (optical, X-rays, mid-IR), we characterized the intrinsic nuclear properties of this sample and compared them with those of isolated systems. Among the 124 X-ray detect...
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| creator | De Rosa, Alessandra Vignali, Cristian Severgnini, Paola Bianchi, Stefano Bogdanović, Tamara Charisi, Maria Guainazzi, Matteo Haiman, Zoltan Komossa, S Paragi, Zsolt Perez-Torres, Miguel Piconcelli, Enrico Ducci, Lorenzo Parvatikar, Manali Serafinelli, Roberto |
| description | We present a study of optically selected dual AGN with projected separations of 3--97~kpc. Using multi-wavelength (MWL) information (optical, X-rays, mid-IR), we characterized the intrinsic nuclear properties of this sample and compared them with those of isolated systems. Among the 124 X-ray detected AGN candidates, 52 appear in pairs and 72 as single X-ray sources. Through MWL analysis, we confirmed the presence of the AGN in a fraction >80\% of the detected targets in pairs (42 over 52). X-ray spectral analysis confirms the trend of increasing AGN luminosity with decreasing separation, suggesting that mergers may have contributed in triggering more luminous AGN. Through X/mid-IR ratio \(vs\) X-ray colors, we estimated a fraction of Compton-thin AGN (with 10\(^{22}\) cm\(^{-2}\) \( |
| doi_str_mv | 10.48550/arxiv.2212.05837 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_arxiv</sourceid><recordid>TN_cdi_arxiv_primary_2212_05837</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2753900085</sourcerecordid><originalsourceid>FETCH-LOGICAL-a525-87abc7a1e039d9cdbe2f3c2f2f5b843267e2d95d5fd9f7be56c9f41ba2b867b23</originalsourceid><addsrcrecordid>eNotjz1PwzAURS0kJKrSH8CEJWYH5zkvtseqgoJUwZKBLfKnSBVIcZJC_j2hZbrL0b33EHKT86xQiPzepJ_mmAHkkHFUQl6QBQiRM1UAXJFV3-8551BKQBQLwqr3QN9YMhM9NuGbdpF2h6Fxpm0n2oc2uCF46kfT0vX25ZpcRtP2YfWfS1I9PlSbJ7Z73T5v1jtmEJApaayTJg9caK-dtwGicBAholWFmLcDeI0eo9dR2oCl07HIrQGrSmlBLMntufbkUh9S82HSVP851Senmbg7E4fUfY2hH-p9N6bP-VMNEoWeFRWKX1L9TYs</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2753900085</pqid></control><display><type>article</type><title>The X-ray view of optically selected dual AGN</title><source>arXiv.org</source><source>Free E- Journals</source><creator>De Rosa, Alessandra ; Vignali, Cristian ; Severgnini, Paola ; Bianchi, Stefano ; Bogdanović, Tamara ; Charisi, Maria ; Guainazzi, Matteo ; Haiman, Zoltan ; Komossa, S ; Paragi, Zsolt ; Perez-Torres, Miguel ; Piconcelli, Enrico ; Ducci, Lorenzo ; Parvatikar, Manali ; Serafinelli, Roberto</creator><creatorcontrib>De Rosa, Alessandra ; Vignali, Cristian ; Severgnini, Paola ; Bianchi, Stefano ; Bogdanović, Tamara ; Charisi, Maria ; Guainazzi, Matteo ; Haiman, Zoltan ; Komossa, S ; Paragi, Zsolt ; Perez-Torres, Miguel ; Piconcelli, Enrico ; Ducci, Lorenzo ; Parvatikar, Manali ; Serafinelli, Roberto</creatorcontrib><description>We present a study of optically selected dual AGN with projected separations of 3--97~kpc. Using multi-wavelength (MWL) information (optical, X-rays, mid-IR), we characterized the intrinsic nuclear properties of this sample and compared them with those of isolated systems. Among the 124 X-ray detected AGN candidates, 52 appear in pairs and 72 as single X-ray sources. Through MWL analysis, we confirmed the presence of the AGN in a fraction >80\% of the detected targets in pairs (42 over 52). X-ray spectral analysis confirms the trend of increasing AGN luminosity with decreasing separation, suggesting that mergers may have contributed in triggering more luminous AGN. Through X/mid-IR ratio \(vs\) X-ray colors, we estimated a fraction of Compton-thin AGN (with 10\(^{22}\) cm\(^{-2}\) \(<\) N\(_{\rm H} <\)10\(^{24}\) cm\(^{-2}\)) of about 80\%, while about 16\% are Compton thick (CT, with N\(_{\rm H}>\)10\(^{24}\) cm\(^{-2}\)) sources. These fractions of obscured sources are larger than those found in samples of isolated AGN, confirming that pairs of AGN show higher obscuration. This trend is further confirmed by comparing the de-reddened [O\ III] emission with the observed X-ray luminosity. However, the derived fraction of Compton-thick sources in this sample at early stage of merging is lower than reported for late-merging dual-AGN samples. Comparing N\(_{\rm H}\) from X-rays with that derived from E(B-V) from Narrow Line Regions, we find that the absorbing material is likely associated with the torus or the Broad Line Regions. We also explored the X-ray detection efficiency of dual-AGN candidates, finding that, when observed properly (at on-axis positions and with long exposures), X-ray data represent a powerful way to confirm and investigate dual-AGN systems.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.2212.05837</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Active galactic nuclei ; Luminosity ; Nuclear properties ; Occultation ; Optical properties ; Physics - Astrophysics of Galaxies ; Physics - High Energy Astrophysical Phenomena ; Spectrum analysis ; Target detection ; Toruses ; X ray sources ; X ray spectra ; X-rays</subject><ispartof>arXiv.org, 2022-12</ispartof><rights>2022. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>http://arxiv.org/licenses/nonexclusive-distrib/1.0</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,776,780,881,27902</link.rule.ids><backlink>$$Uhttps://doi.org/10.48550/arXiv.2212.05837$$DView paper in arXiv$$Hfree_for_read</backlink><backlink>$$Uhttps://doi.org/10.1093/mnras/stac3664$$DView published paper (Access to full text may be restricted)$$Hfree_for_read</backlink></links><search><creatorcontrib>De Rosa, Alessandra</creatorcontrib><creatorcontrib>Vignali, Cristian</creatorcontrib><creatorcontrib>Severgnini, Paola</creatorcontrib><creatorcontrib>Bianchi, Stefano</creatorcontrib><creatorcontrib>Bogdanović, Tamara</creatorcontrib><creatorcontrib>Charisi, Maria</creatorcontrib><creatorcontrib>Guainazzi, Matteo</creatorcontrib><creatorcontrib>Haiman, Zoltan</creatorcontrib><creatorcontrib>Komossa, S</creatorcontrib><creatorcontrib>Paragi, Zsolt</creatorcontrib><creatorcontrib>Perez-Torres, Miguel</creatorcontrib><creatorcontrib>Piconcelli, Enrico</creatorcontrib><creatorcontrib>Ducci, Lorenzo</creatorcontrib><creatorcontrib>Parvatikar, Manali</creatorcontrib><creatorcontrib>Serafinelli, Roberto</creatorcontrib><title>The X-ray view of optically selected dual AGN</title><title>arXiv.org</title><description>We present a study of optically selected dual AGN with projected separations of 3--97~kpc. Using multi-wavelength (MWL) information (optical, X-rays, mid-IR), we characterized the intrinsic nuclear properties of this sample and compared them with those of isolated systems. Among the 124 X-ray detected AGN candidates, 52 appear in pairs and 72 as single X-ray sources. Through MWL analysis, we confirmed the presence of the AGN in a fraction >80\% of the detected targets in pairs (42 over 52). X-ray spectral analysis confirms the trend of increasing AGN luminosity with decreasing separation, suggesting that mergers may have contributed in triggering more luminous AGN. Through X/mid-IR ratio \(vs\) X-ray colors, we estimated a fraction of Compton-thin AGN (with 10\(^{22}\) cm\(^{-2}\) \(<\) N\(_{\rm H} <\)10\(^{24}\) cm\(^{-2}\)) of about 80\%, while about 16\% are Compton thick (CT, with N\(_{\rm H}>\)10\(^{24}\) cm\(^{-2}\)) sources. These fractions of obscured sources are larger than those found in samples of isolated AGN, confirming that pairs of AGN show higher obscuration. This trend is further confirmed by comparing the de-reddened [O\ III] emission with the observed X-ray luminosity. However, the derived fraction of Compton-thick sources in this sample at early stage of merging is lower than reported for late-merging dual-AGN samples. Comparing N\(_{\rm H}\) from X-rays with that derived from E(B-V) from Narrow Line Regions, we find that the absorbing material is likely associated with the torus or the Broad Line Regions. We also explored the X-ray detection efficiency of dual-AGN candidates, finding that, when observed properly (at on-axis positions and with long exposures), X-ray data represent a powerful way to confirm and investigate dual-AGN systems.</description><subject>Active galactic nuclei</subject><subject>Luminosity</subject><subject>Nuclear properties</subject><subject>Occultation</subject><subject>Optical properties</subject><subject>Physics - Astrophysics of Galaxies</subject><subject>Physics - High Energy Astrophysical Phenomena</subject><subject>Spectrum analysis</subject><subject>Target detection</subject><subject>Toruses</subject><subject>X ray sources</subject><subject>X ray spectra</subject><subject>X-rays</subject><issn>2331-8422</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><sourceid>GOX</sourceid><recordid>eNotjz1PwzAURS0kJKrSH8CEJWYH5zkvtseqgoJUwZKBLfKnSBVIcZJC_j2hZbrL0b33EHKT86xQiPzepJ_mmAHkkHFUQl6QBQiRM1UAXJFV3-8551BKQBQLwqr3QN9YMhM9NuGbdpF2h6Fxpm0n2oc2uCF46kfT0vX25ZpcRtP2YfWfS1I9PlSbJ7Z73T5v1jtmEJApaayTJg9caK-dtwGicBAholWFmLcDeI0eo9dR2oCl07HIrQGrSmlBLMntufbkUh9S82HSVP851Senmbg7E4fUfY2hH-p9N6bP-VMNEoWeFRWKX1L9TYs</recordid><startdate>20221212</startdate><enddate>20221212</enddate><creator>De Rosa, Alessandra</creator><creator>Vignali, Cristian</creator><creator>Severgnini, Paola</creator><creator>Bianchi, Stefano</creator><creator>Bogdanović, Tamara</creator><creator>Charisi, Maria</creator><creator>Guainazzi, Matteo</creator><creator>Haiman, Zoltan</creator><creator>Komossa, S</creator><creator>Paragi, Zsolt</creator><creator>Perez-Torres, Miguel</creator><creator>Piconcelli, Enrico</creator><creator>Ducci, Lorenzo</creator><creator>Parvatikar, Manali</creator><creator>Serafinelli, Roberto</creator><general>Cornell University Library, arXiv.org</general><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>L6V</scope><scope>M7S</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>GOX</scope></search><sort><creationdate>20221212</creationdate><title>The X-ray view of optically selected dual AGN</title><author>De Rosa, Alessandra ; Vignali, Cristian ; Severgnini, Paola ; Bianchi, Stefano ; Bogdanović, Tamara ; Charisi, Maria ; Guainazzi, Matteo ; Haiman, Zoltan ; Komossa, S ; Paragi, Zsolt ; Perez-Torres, Miguel ; Piconcelli, Enrico ; Ducci, Lorenzo ; Parvatikar, Manali ; Serafinelli, Roberto</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a525-87abc7a1e039d9cdbe2f3c2f2f5b843267e2d95d5fd9f7be56c9f41ba2b867b23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Active galactic nuclei</topic><topic>Luminosity</topic><topic>Nuclear properties</topic><topic>Occultation</topic><topic>Optical properties</topic><topic>Physics - Astrophysics of Galaxies</topic><topic>Physics - High Energy Astrophysical Phenomena</topic><topic>Spectrum analysis</topic><topic>Target detection</topic><topic>Toruses</topic><topic>X ray sources</topic><topic>X ray spectra</topic><topic>X-rays</topic><toplevel>online_resources</toplevel><creatorcontrib>De Rosa, Alessandra</creatorcontrib><creatorcontrib>Vignali, Cristian</creatorcontrib><creatorcontrib>Severgnini, Paola</creatorcontrib><creatorcontrib>Bianchi, Stefano</creatorcontrib><creatorcontrib>Bogdanović, Tamara</creatorcontrib><creatorcontrib>Charisi, Maria</creatorcontrib><creatorcontrib>Guainazzi, Matteo</creatorcontrib><creatorcontrib>Haiman, Zoltan</creatorcontrib><creatorcontrib>Komossa, S</creatorcontrib><creatorcontrib>Paragi, Zsolt</creatorcontrib><creatorcontrib>Perez-Torres, Miguel</creatorcontrib><creatorcontrib>Piconcelli, Enrico</creatorcontrib><creatorcontrib>Ducci, Lorenzo</creatorcontrib><creatorcontrib>Parvatikar, Manali</creatorcontrib><creatorcontrib>Serafinelli, Roberto</creatorcontrib><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>arXiv.org</collection><jtitle>arXiv.org</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>De Rosa, Alessandra</au><au>Vignali, Cristian</au><au>Severgnini, Paola</au><au>Bianchi, Stefano</au><au>Bogdanović, Tamara</au><au>Charisi, Maria</au><au>Guainazzi, Matteo</au><au>Haiman, Zoltan</au><au>Komossa, S</au><au>Paragi, Zsolt</au><au>Perez-Torres, Miguel</au><au>Piconcelli, Enrico</au><au>Ducci, Lorenzo</au><au>Parvatikar, Manali</au><au>Serafinelli, Roberto</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The X-ray view of optically selected dual AGN</atitle><jtitle>arXiv.org</jtitle><date>2022-12-12</date><risdate>2022</risdate><eissn>2331-8422</eissn><abstract>We present a study of optically selected dual AGN with projected separations of 3--97~kpc. Using multi-wavelength (MWL) information (optical, X-rays, mid-IR), we characterized the intrinsic nuclear properties of this sample and compared them with those of isolated systems. Among the 124 X-ray detected AGN candidates, 52 appear in pairs and 72 as single X-ray sources. Through MWL analysis, we confirmed the presence of the AGN in a fraction >80\% of the detected targets in pairs (42 over 52). X-ray spectral analysis confirms the trend of increasing AGN luminosity with decreasing separation, suggesting that mergers may have contributed in triggering more luminous AGN. Through X/mid-IR ratio \(vs\) X-ray colors, we estimated a fraction of Compton-thin AGN (with 10\(^{22}\) cm\(^{-2}\) \(<\) N\(_{\rm H} <\)10\(^{24}\) cm\(^{-2}\)) of about 80\%, while about 16\% are Compton thick (CT, with N\(_{\rm H}>\)10\(^{24}\) cm\(^{-2}\)) sources. These fractions of obscured sources are larger than those found in samples of isolated AGN, confirming that pairs of AGN show higher obscuration. This trend is further confirmed by comparing the de-reddened [O\ III] emission with the observed X-ray luminosity. However, the derived fraction of Compton-thick sources in this sample at early stage of merging is lower than reported for late-merging dual-AGN samples. Comparing N\(_{\rm H}\) from X-rays with that derived from E(B-V) from Narrow Line Regions, we find that the absorbing material is likely associated with the torus or the Broad Line Regions. We also explored the X-ray detection efficiency of dual-AGN candidates, finding that, when observed properly (at on-axis positions and with long exposures), X-ray data represent a powerful way to confirm and investigate dual-AGN systems.</abstract><cop>Ithaca</cop><pub>Cornell University Library, arXiv.org</pub><doi>10.48550/arxiv.2212.05837</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Active galactic nuclei Luminosity Nuclear properties Occultation Optical properties Physics - Astrophysics of Galaxies Physics - High Energy Astrophysical Phenomena Spectrum analysis Target detection Toruses X ray sources X ray spectra X-rays |
| title | The X-ray view of optically selected dual AGN |
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