DWARF GALAXIES WITH OPTICAL SIGNATURES OF ACTIVE MASSIVE BLACK HOLES

We present a sample of 151 dwarf galaxies (10 super(8.5) [

Saved in:
Bibliographic Details
Published in:The Astrophysical journal 2013-10, Vol.775 (2), p.1-24
Main Authors: Reines, Amy E, Greene, Jenny E, Geha, Marla
Format: Article
Language:English
Subjects:
Accretion
Active galactic nuclei
Active galaxies
ASTRONOMY
ASTROPHYSICS
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
BLACK HOLES
Black holes (astronomy)
COMPARATIVE EVALUATIONS
DIAGRAMS
Dwarf galaxies
GALACTIC EVOLUTION
Galaxies
GALAXY NUCLEI
MAGELLANIC CLOUDS
MASS
NASA
NITROGEN IONS
OXYGEN IONS
PHOTOIONIZATION
RED SHIFT
Signatures
STARS
Stellar mass
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by cdi_FETCH-LOGICAL-c388t-4f0cebba945acc6d8d89137a74d48ee1feb99ed9d6819fa8c487990673b732ac3
cites cdi_FETCH-LOGICAL-c388t-4f0cebba945acc6d8d89137a74d48ee1feb99ed9d6819fa8c487990673b732ac3
container_end_page 24
container_issue 2
container_start_page 1
container_title The Astrophysical journal
container_volume 775
creator Reines, Amy E
Greene, Jenny E
Geha, Marla
description We present a sample of 151 dwarf galaxies (10 super(8.5) [
doi_str_mv 10.1088/0004-637X/775/2/116
format article
fullrecord <record><control><sourceid>proquest_osti_</sourceid><recordid>TN_cdi_osti_scitechconnect_22270856</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>1718924403</sourcerecordid><originalsourceid>FETCH-LOGICAL-c388t-4f0cebba945acc6d8d89137a74d48ee1feb99ed9d6819fa8c487990673b732ac3</originalsourceid><addsrcrecordid>eNqNkU1Pg0AURSdGE2v1F7ghceMGmS-YmeWItCWimEJtdxMYhohpS2Xown8vpMa1q5v3cnIX9wBwi-ADgpx7EELqBoRtPMZ8D3sIBWdggnzCXUp8dg4mf8QluLL2czyxEBPw9LSWy5kzl4ncxFHmrON84aRveRzKxMni-avMV8vhn84cGebxe-S8yCwb8zGR4bOzSJMouwYXdbG15uY3p2A1i_Jw4SbpfCxyNeG8d2kNtSnLQlC_0DqoeMUFIqxgtKLcGFSbUghTiSrgSNQF15QzIWDASMkILjSZgrtTb2v7Rlnd9EZ_6Ha_N7pXGGMGuR8M1P2JOnTt19HYXu0aq812W-xNe7QKMcQFphSSf6BQIOYzjAaUnFDdtdZ2plaHrtkV3bdCUI0S1LipGidWgwSF1SCB_AC5wHJz</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1709175721</pqid></control><display><type>article</type><title>DWARF GALAXIES WITH OPTICAL SIGNATURES OF ACTIVE MASSIVE BLACK HOLES</title><source>EZB Electronic Journals Library</source><creator>Reines, Amy E ; Greene, Jenny E ; Geha, Marla</creator><creatorcontrib>Reines, Amy E ; Greene, Jenny E ; Geha, Marla</creatorcontrib><description>We present a sample of 151 dwarf galaxies (10 super(8.5) [&lt;, ~] M[low *] [&lt;, ~] 10 super(9.5) M sub([middot in circle])) that exhibit optical spectroscopic signatures of accreting massive black holes (BHs), increasing the number of known active galaxies in this stellar-mass range by more than an order of magnitude. Utilizing data from the Sloan Digital Sky Survey Data Release 8 and stellar masses from the NASA-Sloan Atlas, we have systematically searched for active BHs in ~25,000 emission-line galaxies with stellar masses comparable to the Magellanic Clouds and redshifts z &lt; 0.055. Using the narrow-line [OIII]/H[beta] versus [NII]/H[alpha] diagnostic diagram, we find photoionization signatures of BH accretion in 136 galaxies, a small fraction of which also exhibit broad H[alpha] emission. For these broad-line active galactic nucleus (AGN) candidates, we estimate BH masses using standard virial techniques and find a range of 10 super(5) [&lt;, ~] M sub(BH) [&lt;, ~] 10 super(6) M sub([middot in circle]) and a median of M sub(BH) ~ 2 x 10 super(5) M sub([middot in circle]). We also detect broad H[alpha] in 15 galaxies that have narrow-line ratios consistent with star-forming galaxies. Follow-up observations are required to determine if these are true type 1 AGN or if the broad H[alpha] is from stellar processes. The median absolute magnitude of the host galaxies in our active sample is M sub(g) = -18.1 mag, which is ~1-2 mag fainter than previous samples of AGN hosts with low-mass BHs. This work constrains the smallest galaxies that can form a massive BH, with implications for BH feedback in low-mass galaxies and the origin of the first supermassive BH seeds.</description><identifier>ISSN: 0004-637X</identifier><identifier>EISSN: 1538-4357</identifier><identifier>DOI: 10.1088/0004-637X/775/2/116</identifier><language>eng</language><publisher>United States</publisher><subject>Accretion ; Active galactic nuclei ; Active galaxies ; ASTRONOMY ; ASTROPHYSICS ; ASTROPHYSICS, COSMOLOGY AND ASTRONOMY ; BLACK HOLES ; Black holes (astronomy) ; COMPARATIVE EVALUATIONS ; DIAGRAMS ; Dwarf galaxies ; GALACTIC EVOLUTION ; Galaxies ; GALAXY NUCLEI ; MAGELLANIC CLOUDS ; MASS ; NASA ; NITROGEN IONS ; OXYGEN IONS ; PHOTOIONIZATION ; RED SHIFT ; Signatures ; STARS ; Stellar mass</subject><ispartof>The Astrophysical journal, 2013-10, Vol.775 (2), p.1-24</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c388t-4f0cebba945acc6d8d89137a74d48ee1feb99ed9d6819fa8c487990673b732ac3</citedby><cites>FETCH-LOGICAL-c388t-4f0cebba945acc6d8d89137a74d48ee1feb99ed9d6819fa8c487990673b732ac3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27924,27925</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/22270856$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Reines, Amy E</creatorcontrib><creatorcontrib>Greene, Jenny E</creatorcontrib><creatorcontrib>Geha, Marla</creatorcontrib><title>DWARF GALAXIES WITH OPTICAL SIGNATURES OF ACTIVE MASSIVE BLACK HOLES</title><title>The Astrophysical journal</title><description>We present a sample of 151 dwarf galaxies (10 super(8.5) [&lt;, ~] M[low *] [&lt;, ~] 10 super(9.5) M sub([middot in circle])) that exhibit optical spectroscopic signatures of accreting massive black holes (BHs), increasing the number of known active galaxies in this stellar-mass range by more than an order of magnitude. Utilizing data from the Sloan Digital Sky Survey Data Release 8 and stellar masses from the NASA-Sloan Atlas, we have systematically searched for active BHs in ~25,000 emission-line galaxies with stellar masses comparable to the Magellanic Clouds and redshifts z &lt; 0.055. Using the narrow-line [OIII]/H[beta] versus [NII]/H[alpha] diagnostic diagram, we find photoionization signatures of BH accretion in 136 galaxies, a small fraction of which also exhibit broad H[alpha] emission. For these broad-line active galactic nucleus (AGN) candidates, we estimate BH masses using standard virial techniques and find a range of 10 super(5) [&lt;, ~] M sub(BH) [&lt;, ~] 10 super(6) M sub([middot in circle]) and a median of M sub(BH) ~ 2 x 10 super(5) M sub([middot in circle]). We also detect broad H[alpha] in 15 galaxies that have narrow-line ratios consistent with star-forming galaxies. Follow-up observations are required to determine if these are true type 1 AGN or if the broad H[alpha] is from stellar processes. The median absolute magnitude of the host galaxies in our active sample is M sub(g) = -18.1 mag, which is ~1-2 mag fainter than previous samples of AGN hosts with low-mass BHs. This work constrains the smallest galaxies that can form a massive BH, with implications for BH feedback in low-mass galaxies and the origin of the first supermassive BH seeds.</description><subject>Accretion</subject><subject>Active galactic nuclei</subject><subject>Active galaxies</subject><subject>ASTRONOMY</subject><subject>ASTROPHYSICS</subject><subject>ASTROPHYSICS, COSMOLOGY AND ASTRONOMY</subject><subject>BLACK HOLES</subject><subject>Black holes (astronomy)</subject><subject>COMPARATIVE EVALUATIONS</subject><subject>DIAGRAMS</subject><subject>Dwarf galaxies</subject><subject>GALACTIC EVOLUTION</subject><subject>Galaxies</subject><subject>GALAXY NUCLEI</subject><subject>MAGELLANIC CLOUDS</subject><subject>MASS</subject><subject>NASA</subject><subject>NITROGEN IONS</subject><subject>OXYGEN IONS</subject><subject>PHOTOIONIZATION</subject><subject>RED SHIFT</subject><subject>Signatures</subject><subject>STARS</subject><subject>Stellar mass</subject><issn>0004-637X</issn><issn>1538-4357</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNqNkU1Pg0AURSdGE2v1F7ghceMGmS-YmeWItCWimEJtdxMYhohpS2Xown8vpMa1q5v3cnIX9wBwi-ADgpx7EELqBoRtPMZ8D3sIBWdggnzCXUp8dg4mf8QluLL2czyxEBPw9LSWy5kzl4ncxFHmrON84aRveRzKxMni-avMV8vhn84cGebxe-S8yCwb8zGR4bOzSJMouwYXdbG15uY3p2A1i_Jw4SbpfCxyNeG8d2kNtSnLQlC_0DqoeMUFIqxgtKLcGFSbUghTiSrgSNQF15QzIWDASMkILjSZgrtTb2v7Rlnd9EZ_6Ha_N7pXGGMGuR8M1P2JOnTt19HYXu0aq812W-xNe7QKMcQFphSSf6BQIOYzjAaUnFDdtdZ2plaHrtkV3bdCUI0S1LipGidWgwSF1SCB_AC5wHJz</recordid><startdate>20131001</startdate><enddate>20131001</enddate><creator>Reines, Amy E</creator><creator>Greene, Jenny E</creator><creator>Geha, Marla</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>20131001</creationdate><title>DWARF GALAXIES WITH OPTICAL SIGNATURES OF ACTIVE MASSIVE BLACK HOLES</title><author>Reines, Amy E ; Greene, Jenny E ; Geha, Marla</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c388t-4f0cebba945acc6d8d89137a74d48ee1feb99ed9d6819fa8c487990673b732ac3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Accretion</topic><topic>Active galactic nuclei</topic><topic>Active galaxies</topic><topic>ASTRONOMY</topic><topic>ASTROPHYSICS</topic><topic>ASTROPHYSICS, COSMOLOGY AND ASTRONOMY</topic><topic>BLACK HOLES</topic><topic>Black holes (astronomy)</topic><topic>COMPARATIVE EVALUATIONS</topic><topic>DIAGRAMS</topic><topic>Dwarf galaxies</topic><topic>GALACTIC EVOLUTION</topic><topic>Galaxies</topic><topic>GALAXY NUCLEI</topic><topic>MAGELLANIC CLOUDS</topic><topic>MASS</topic><topic>NASA</topic><topic>NITROGEN IONS</topic><topic>OXYGEN IONS</topic><topic>PHOTOIONIZATION</topic><topic>RED SHIFT</topic><topic>Signatures</topic><topic>STARS</topic><topic>Stellar mass</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Reines, Amy E</creatorcontrib><creatorcontrib>Greene, Jenny E</creatorcontrib><creatorcontrib>Geha, Marla</creatorcontrib><collection>CrossRef</collection><collection>Meteorological &amp; Geoastrophysical Abstracts</collection><collection>Meteorological &amp; 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>Reines, Amy E</au><au>Greene, Jenny E</au><au>Geha, Marla</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>DWARF GALAXIES WITH OPTICAL SIGNATURES OF ACTIVE MASSIVE BLACK HOLES</atitle><jtitle>The Astrophysical journal</jtitle><date>2013-10-01</date><risdate>2013</risdate><volume>775</volume><issue>2</issue><spage>1</spage><epage>24</epage><pages>1-24</pages><issn>0004-637X</issn><eissn>1538-4357</eissn><abstract>We present a sample of 151 dwarf galaxies (10 super(8.5) [&lt;, ~] M[low *] [&lt;, ~] 10 super(9.5) M sub([middot in circle])) that exhibit optical spectroscopic signatures of accreting massive black holes (BHs), increasing the number of known active galaxies in this stellar-mass range by more than an order of magnitude. Utilizing data from the Sloan Digital Sky Survey Data Release 8 and stellar masses from the NASA-Sloan Atlas, we have systematically searched for active BHs in ~25,000 emission-line galaxies with stellar masses comparable to the Magellanic Clouds and redshifts z &lt; 0.055. Using the narrow-line [OIII]/H[beta] versus [NII]/H[alpha] diagnostic diagram, we find photoionization signatures of BH accretion in 136 galaxies, a small fraction of which also exhibit broad H[alpha] emission. For these broad-line active galactic nucleus (AGN) candidates, we estimate BH masses using standard virial techniques and find a range of 10 super(5) [&lt;, ~] M sub(BH) [&lt;, ~] 10 super(6) M sub([middot in circle]) and a median of M sub(BH) ~ 2 x 10 super(5) M sub([middot in circle]). We also detect broad H[alpha] in 15 galaxies that have narrow-line ratios consistent with star-forming galaxies. Follow-up observations are required to determine if these are true type 1 AGN or if the broad H[alpha] is from stellar processes. The median absolute magnitude of the host galaxies in our active sample is M sub(g) = -18.1 mag, which is ~1-2 mag fainter than previous samples of AGN hosts with low-mass BHs. This work constrains the smallest galaxies that can form a massive BH, with implications for BH feedback in low-mass galaxies and the origin of the first supermassive BH seeds.</abstract><cop>United States</cop><doi>10.1088/0004-637X/775/2/116</doi><tpages>24</tpages><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 0004-637X
ispartof The Astrophysical journal, 2013-10, Vol.775 (2), p.1-24
issn 0004-637X
1538-4357
language eng
recordid cdi_osti_scitechconnect_22270856
source EZB Electronic Journals Library
subjects Accretion
Active galactic nuclei
Active galaxies
ASTRONOMY
ASTROPHYSICS
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
BLACK HOLES
Black holes (astronomy)
COMPARATIVE EVALUATIONS
DIAGRAMS
Dwarf galaxies
GALACTIC EVOLUTION
Galaxies
GALAXY NUCLEI
MAGELLANIC CLOUDS
MASS
NASA
NITROGEN IONS
OXYGEN IONS
PHOTOIONIZATION
RED SHIFT
Signatures
STARS
Stellar mass
title DWARF GALAXIES WITH OPTICAL SIGNATURES OF ACTIVE MASSIVE BLACK HOLES
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-27T04%3A12%3A50IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_osti_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=DWARF%20GALAXIES%20WITH%20OPTICAL%20SIGNATURES%20OF%20ACTIVE%20MASSIVE%20BLACK%20HOLES&rft.jtitle=The%20Astrophysical%20journal&rft.au=Reines,%20Amy%20E&rft.date=2013-10-01&rft.volume=775&rft.issue=2&rft.spage=1&rft.epage=24&rft.pages=1-24&rft.issn=0004-637X&rft.eissn=1538-4357&rft_id=info:doi/10.1088/0004-637X/775/2/116&rft_dat=%3Cproquest_osti_%3E1718924403%3C/proquest_osti_%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c388t-4f0cebba945acc6d8d89137a74d48ee1feb99ed9d6819fa8c487990673b732ac3%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=1709175721&rft_id=info:pmid/&rfr_iscdi=true