A periodicity of ∼1 hour in X-ray emission from the active galaxy RE J1034+396
Active galactic nuclei and quasars are thought to be scaled-up versions of Galactic black hole binaries, powered by accretion onto supermassive black holes with masses of 106-109 , as opposed to the ∼10 in binaries (here is the solar mass). One example of the similarities between these two types of...
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| Veröffentlicht in: | Nature (London) 2008-09, Vol.455 (7211), p.369-371 |
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| creator | Gierli ski, Marek Middleton, Matthew Ward, Martin Done, Chris |
| description | Active galactic nuclei and quasars are thought to be scaled-up versions of Galactic black hole binaries, powered by accretion onto supermassive black holes with masses of 106-109 , as opposed to the ∼10 in binaries (here is the solar mass). One example of the similarities between these two types of systems is the characteristic rapid X-ray variability seen from the accretion flow. The power spectrum of this variability in black hole binaries consists of a broad noise with multiple quasi-periodic oscillations superimposed on it. Although the broad noise component has been observed in many active galactic nuclei, there have hitherto been no significant detections of quasi-periodic oscillations. Here we report the discovery of an ∼1-hour X-ray periodicity in a bright active galaxy, RE J1034+396. The signal is highly statistically significant (at the 5.6 level) and very coherent, with quality factor Q > 16. The X-ray modulation arises from the direct vicinity of the black hole. |
| doi_str_mv | 10.1038/nature07277 |
| format | Article |
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One example of the similarities between these two types of systems is the characteristic rapid X-ray variability seen from the accretion flow. The power spectrum of this variability in black hole binaries consists of a broad noise with multiple quasi-periodic oscillations superimposed on it. Although the broad noise component has been observed in many active galactic nuclei, there have hitherto been no significant detections of quasi-periodic oscillations. Here we report the discovery of an ∼1-hour X-ray periodicity in a bright active galaxy, RE J1034+396. The signal is highly statistically significant (at the 5.6 level) and very coherent, with quality factor Q > 16. The X-ray modulation arises from the direct vicinity of the black hole.</description><identifier>ISSN: 0028-0836</identifier><identifier>EISSN: 1476-4687</identifier><identifier>DOI: 10.1038/nature07277</identifier><identifier>CODEN: NATUAS</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>Accretion ; Active and peculiar galaxies (including bl lacertae objects, blazars, seyfert galaxies, markarian galaxies, active galactic nuclei) ; Astronomy ; Black holes ; Earth, ocean, space ; Emissions ; Exact sciences and technology ; Frequencies ; Galaxies ; Humanities and Social Sciences ; Legislation ; letter ; Light curves ; Luminosity ; multidisciplinary ; Oscillation ; Quasars. Active or peculiar galaxies, objects, and systems ; Science ; Science (multidisciplinary) ; Stars & galaxies ; Stellar systems. Galactic and extragalactic objects and systems. The universe ; Velocity ; X-rays</subject><ispartof>Nature (London), 2008-09, Vol.455 (7211), p.369-371</ispartof><rights>Macmillan Publishers Limited. All rights reserved 2008</rights><rights>2008 INIST-CNRS</rights><rights>COPYRIGHT 2008 Nature Publishing Group</rights><rights>Copyright Nature Publishing Group Sep 18, 2008</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5717-4e22b8709fcfad802b55352cec504ba5d656854ddfea7f7705245476a1d7f8863</citedby><cites>FETCH-LOGICAL-c5717-4e22b8709fcfad802b55352cec504ba5d656854ddfea7f7705245476a1d7f8863</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1038/nature07277$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1038/nature07277$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,2727,27924,27925,41488,42557,51319</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20636216$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Gierli ski, Marek</creatorcontrib><creatorcontrib>Middleton, Matthew</creatorcontrib><creatorcontrib>Ward, Martin</creatorcontrib><creatorcontrib>Done, Chris</creatorcontrib><title>A periodicity of ∼1 hour in X-ray emission from the active galaxy RE J1034+396</title><title>Nature (London)</title><addtitle>Nature</addtitle><description>Active galactic nuclei and quasars are thought to be scaled-up versions of Galactic black hole binaries, powered by accretion onto supermassive black holes with masses of 106-109 , as opposed to the ∼10 in binaries (here is the solar mass). 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The X-ray modulation arises from the direct vicinity of the black hole.</description><subject>Accretion</subject><subject>Active and peculiar galaxies (including bl lacertae objects, blazars, seyfert galaxies, markarian galaxies, active galactic nuclei)</subject><subject>Astronomy</subject><subject>Black holes</subject><subject>Earth, ocean, space</subject><subject>Emissions</subject><subject>Exact sciences and technology</subject><subject>Frequencies</subject><subject>Galaxies</subject><subject>Humanities and Social Sciences</subject><subject>Legislation</subject><subject>letter</subject><subject>Light curves</subject><subject>Luminosity</subject><subject>multidisciplinary</subject><subject>Oscillation</subject><subject>Quasars. Active or peculiar galaxies, objects, and systems</subject><subject>Science</subject><subject>Science (multidisciplinary)</subject><subject>Stars & galaxies</subject><subject>Stellar systems. Galactic and extragalactic objects and systems. 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One example of the similarities between these two types of systems is the characteristic rapid X-ray variability seen from the accretion flow. The power spectrum of this variability in black hole binaries consists of a broad noise with multiple quasi-periodic oscillations superimposed on it. Although the broad noise component has been observed in many active galactic nuclei, there have hitherto been no significant detections of quasi-periodic oscillations. Here we report the discovery of an ∼1-hour X-ray periodicity in a bright active galaxy, RE J1034+396. The signal is highly statistically significant (at the 5.6 level) and very coherent, with quality factor Q > 16. The X-ray modulation arises from the direct vicinity of the black hole.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><doi>10.1038/nature07277</doi><tpages>3</tpages></addata></record> |
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| ispartof | Nature (London), 2008-09, Vol.455 (7211), p.369-371 |
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| source | Nature Journals Online; SpringerLink Journals - AutoHoldings |
| subjects | Accretion Active and peculiar galaxies (including bl lacertae objects, blazars, seyfert galaxies, markarian galaxies, active galactic nuclei) Astronomy Black holes Earth, ocean, space Emissions Exact sciences and technology Frequencies Galaxies Humanities and Social Sciences Legislation letter Light curves Luminosity multidisciplinary Oscillation Quasars. Active or peculiar galaxies, objects, and systems Science Science (multidisciplinary) Stars & galaxies Stellar systems. Galactic and extragalactic objects and systems. The universe Velocity X-rays |
| title | A periodicity of ∼1 hour in X-ray emission from the active galaxy RE J1034+396 |
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