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<dri:objIdentifier>od________18::0000c207dd4fb888740b82eb074584eb</dri:objIdentifier>
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<dri:recordIdentifier>oai:arXiv.org:astro-ph/0503453</dri:recordIdentifier>
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</header>
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<metadata xmlns="http://namespace.openaire.eu/">
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<dc:title>Rapid Growth of Black Holes in Massive Star-Forming Galaxies</dc:title>
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<dc:creator>Bousso, Raphael</dc:creator>
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<dc:creator>Smail, I.</dc:creator>
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<dc:date>2005-03-21</dc:date>
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<dc:description> The tight relationship between the masses of black holes and galaxy spheroids
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in nearby galaxies implies a causal connection between the growth of these two
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components. Optically luminous quasars host the most prodigious accreting black
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holes in the Universe and can account for >30% of the total cosmological
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black-hole growth. As typical quasars are not, however, undergoing intense star
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formation and already host massive black holes [>10^(8) M(Sun)], there must
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have been an earlier pre-quasar phase when these black holes grew [mass range
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~10^(6)-10^(8) M(Sun)]. The likely signature of this earlier stage is
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simultaneous black-hole growth and star formation in distant (i.e., z>1; >8
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billion light years away) luminous galaxies. Here we report ultra-deep X-ray
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observations of distant star-forming galaxies that are bright at submillimetre
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wavelengths. We find that the black holes in these galaxies are growing almost
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continuously throughout periods of intense star formation. This activity
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appears to be more tightly associated with these galaxies than any other coeval
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galaxy populations. We show that the black-hole growth from these galaxies is
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consistent with that expected for the pre-quasar phase.
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</dc:description>
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<dc:description>Comment: 5 pages, 2 figures, to appear in Nature on 7th April</dc:description>
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<dc:identifier>http://arxiv.org/abs/astro-ph/0503453</dc:identifier>
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<dc:language>eng</dc:language>
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<dc:subject>Astrophysics</dc:subject>
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<dr:CobjCategory>0001</dr:CobjCategory>
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<dr:CobjIdentifier>Nature 434:738,2005</dr:CobjIdentifier>
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<dr:CobjIdentifier>doi:10.1038/nature03473</dr:CobjIdentifier>
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<oaf:dateAccepted>2005-03-21</oaf:dateAccepted>
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<oaf:accessrights>OPEN</oaf:accessrights>
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<oaf:hostedBy id="opendoar____::18" name="arXiv.org e-Print Archive"/>
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<oaf:collectedFrom id="opendoar____::18" name="arXiv.org e-Print Archive"/>
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<oaf:identifier identifierType="doi">10.1038/nature03473</oaf:identifier>
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</metadata>
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</record>
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