IDENTIFICATION OF OUTFLOWS AND CANDIDATE DUAL ACTIVE GALACTIC NUCLEI IN SDSS QUASARS AT z = 0.8-1.6
We present a sample of 131 quasars from the Sloan Digital Sky Survey at redshifts 0.8 < z < 1.6 with double peaks in either of the high-ionization narrow emission lines [NeV] [lambda]3426 or [NeIII] [lambda]3869. These sources were selected with the intention of identifying high-redshift analo...
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| Veröffentlicht in: | The Astrophysical journal 2013-06, Vol.769 (2), p.1-18 |
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| creator | Barrows, R Scott Sandberg Lacy, Claud H Kennefick, Julia Comerford, Julia M Kennefick, Daniel Berrier, Joel C |
| description | We present a sample of 131 quasars from the Sloan Digital Sky Survey at redshifts 0.8 < z < 1.6 with double peaks in either of the high-ionization narrow emission lines [NeV] [lambda]3426 or [NeIII] [lambda]3869. These sources were selected with the intention of identifying high-redshift analogs of the z < 0.8 active galactic nuclei (AGNs) with double-peaked [OIII] [lambda]5007 lines, which might represent AGN outflows or dual AGNs. Lines of high ionization potential are believed to originate in the inner, highly photo-ionized portion of the narrow line region, and we exploit this assumption to investigate the possible kinematic origins of the double-peaked lines. Finally, we find that our sample shows an anti-correlation between the velocity-offset ratio and luminosity ratio of the components, which is a potential dynamical argument for the presence of dual AGNs. Therefore, this study serves as a first attempt at extending the selection of candidate dual AGNs to higher redshifts. |
| doi_str_mv | 10.1088/0004-637X/769/2/95 |
| format | Article |
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These sources were selected with the intention of identifying high-redshift analogs of the z < 0.8 active galactic nuclei (AGNs) with double-peaked [OIII] [lambda]5007 lines, which might represent AGN outflows or dual AGNs. Lines of high ionization potential are believed to originate in the inner, highly photo-ionized portion of the narrow line region, and we exploit this assumption to investigate the possible kinematic origins of the double-peaked lines. Finally, we find that our sample shows an anti-correlation between the velocity-offset ratio and luminosity ratio of the components, which is a potential dynamical argument for the presence of dual AGNs. Therefore, this study serves as a first attempt at extending the selection of candidate dual AGNs to higher redshifts.</description><subject>Active galactic nuclei</subject><subject>ASTROPHYSICS, COSMOLOGY AND ASTRONOMY</subject><subject>CORRELATIONS</subject><subject>EMISSION</subject><subject>GALAXIES</subject><subject>GALAXY NUCLEI</subject><subject>LINE WIDTHS</subject><subject>LUMINOSITY</subject><subject>Origins</subject><subject>Outflow</subject><subject>PEAKS</subject><subject>PHOTOIONIZATION</subject><subject>QUASARS</subject><subject>RED SHIFT</subject><subject>Sky surveys (astronomy)</subject><subject>STRATIFICATION</subject><subject>VELOCITY</subject><issn>0004-637X</issn><issn>1538-4357</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNqNkT1v2zAQhokiAeok_QOZCGTJIpsfoo4cMgiSnAoQJLSS2mwETVOIA8dKRGVof30puOjc5b074LkP3IvQLSVrSqTcEELiKOHwtIFEbdhGiU9oRQWXUcwFXKDVP-AzuvL-ZSmZUitky7you3JbZmlXNjVutrjpu23V_GxxWuc4C1LmaVfgvE8rnGZd-aPAj2m1ZBmu-6wqSlzWuM3bFn_r0zb9Hjo7_Bs_YLKWEV0nN-hyMEfvvvyN16jfFl32Naqax7C3iiyP6RwNexACgCfxPmHKGrMTcWykog7AwA6kVWZH5Z4TgGEAG8RYYPtYCgeUJ_wa3Z3njn4-aG8Ps7PPdjydnJ01Y5QlQvJA3Z-pt2l8_3B-1q8Hb93xaE5u_PCaQsJIuET8DxqmghISAsrOqJ1G7yc36Lfp8GqmX5oSvVikl5frxQEdLNJMK8H_ANc3eQA</recordid><startdate>20130601</startdate><enddate>20130601</enddate><creator>Barrows, R Scott</creator><creator>Sandberg Lacy, Claud H</creator><creator>Kennefick, Julia</creator><creator>Comerford, Julia M</creator><creator>Kennefick, Daniel</creator><creator>Berrier, Joel C</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>KL.</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>OTOTI</scope></search><sort><creationdate>20130601</creationdate><title>IDENTIFICATION OF OUTFLOWS AND CANDIDATE DUAL ACTIVE GALACTIC NUCLEI IN SDSS QUASARS AT z = 0.8-1.6</title><author>Barrows, R Scott ; Sandberg Lacy, Claud H ; Kennefick, Julia ; Comerford, Julia M ; Kennefick, Daniel ; Berrier, Joel C</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c341t-fd75577364d629caab544a891e77a7b78c9ab18d3077ff7c7ffac72d485e71363</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Active galactic nuclei</topic><topic>ASTROPHYSICS, COSMOLOGY AND ASTRONOMY</topic><topic>CORRELATIONS</topic><topic>EMISSION</topic><topic>GALAXIES</topic><topic>GALAXY NUCLEI</topic><topic>LINE WIDTHS</topic><topic>LUMINOSITY</topic><topic>Origins</topic><topic>Outflow</topic><topic>PEAKS</topic><topic>PHOTOIONIZATION</topic><topic>QUASARS</topic><topic>RED SHIFT</topic><topic>Sky surveys (astronomy)</topic><topic>STRATIFICATION</topic><topic>VELOCITY</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Barrows, R Scott</creatorcontrib><creatorcontrib>Sandberg Lacy, Claud H</creatorcontrib><creatorcontrib>Kennefick, Julia</creatorcontrib><creatorcontrib>Comerford, Julia M</creatorcontrib><creatorcontrib>Kennefick, Daniel</creatorcontrib><creatorcontrib>Berrier, Joel C</creatorcontrib><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>OSTI.GOV</collection><jtitle>The Astrophysical journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Barrows, R Scott</au><au>Sandberg Lacy, Claud H</au><au>Kennefick, Julia</au><au>Comerford, Julia M</au><au>Kennefick, Daniel</au><au>Berrier, Joel C</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>IDENTIFICATION OF OUTFLOWS AND CANDIDATE DUAL ACTIVE GALACTIC NUCLEI IN SDSS QUASARS AT z = 0.8-1.6</atitle><jtitle>The Astrophysical journal</jtitle><date>2013-06-01</date><risdate>2013</risdate><volume>769</volume><issue>2</issue><spage>1</spage><epage>18</epage><pages>1-18</pages><issn>0004-637X</issn><eissn>1538-4357</eissn><abstract>We present a sample of 131 quasars from the Sloan Digital Sky Survey at redshifts 0.8 < z < 1.6 with double peaks in either of the high-ionization narrow emission lines [NeV] [lambda]3426 or [NeIII] [lambda]3869. 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| source | Institute of Physics Open Access Journal Titles; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection |
| subjects | Active galactic nuclei ASTROPHYSICS, COSMOLOGY AND ASTRONOMY CORRELATIONS EMISSION GALAXIES GALAXY NUCLEI LINE WIDTHS LUMINOSITY Origins Outflow PEAKS PHOTOIONIZATION QUASARS RED SHIFT Sky surveys (astronomy) STRATIFICATION VELOCITY |
| title | IDENTIFICATION OF OUTFLOWS AND CANDIDATE DUAL ACTIVE GALACTIC NUCLEI IN SDSS QUASARS AT z = 0.8-1.6 |
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