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The identification of an optical counterpart to the super-Eddington X-ray source NGC 5204 X-1
We report the identification of a possible optical counterpart to the super-Eddington X-ray source NGC 5204 X-1. New Chandra data show that the X-ray source is point-like, with a luminosity of 5.2×1039 erg s−1(0.5–8 keV). It displays medium- and long-term X-ray variability in observations spanning a...
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| Published in: | Monthly notices of the Royal Astronomical Society 2001-08, Vol.325 (2), p.L7-L11 |
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| Main Authors: | , , , , , , |
| Format: | Article |
| Language: | English |
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| cited_by | cdi_FETCH-LOGICAL-c4309-dd9557cd5b069d693c75a806a274955fac588947062a3313eaf9449f11a3a4d93 |
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| cites | cdi_FETCH-LOGICAL-c4309-dd9557cd5b069d693c75a806a274955fac588947062a3313eaf9449f11a3a4d93 |
| container_end_page | L11 |
| container_issue | 2 |
| container_start_page | L7 |
| container_title | Monthly notices of the Royal Astronomical Society |
| container_volume | 325 |
| creator | Roberts, T.P. Goad, M.R. Ward, M.J. Warwick, R.S. O'Brien, P.T. Lira, P. Hands, A.D.P. |
| description | We report the identification of a possible optical counterpart to the super-Eddington X-ray source NGC 5204 X-1. New Chandra data show that the X-ray source is point-like, with a luminosity of 5.2×1039 erg s−1(0.5–8 keV). It displays medium- and long-term X-ray variability in observations spanning a period of 20 yr. The accurate Chandra position allows us to identify a blue optical continuum source (mv=19.7) at the position of NGC 5204 X-1, using newly obtained optical data from the INTEGRAL instrument on the William Herschel Telescope. The X-ray and optical source properties are consistent with the scenario in which we are observing the beamed X-ray emission of a high-mass X-ray binary in NGC 5204, composed of an O star with either a black hole or neutron star companion. |
| doi_str_mv | 10.1046/j.1365-8711.2001.04659.x |
| format | article |
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Not. R. Astron. Soc</addtitle><date>2001-08-01</date><risdate>2001</risdate><volume>325</volume><issue>2</issue><spage>L7</spage><epage>L11</epage><pages>L7-L11</pages><issn>0035-8711</issn><eissn>1365-2966</eissn><abstract>We report the identification of a possible optical counterpart to the super-Eddington X-ray source NGC 5204 X-1. New Chandra data show that the X-ray source is point-like, with a luminosity of 5.2×1039 erg s−1(0.5–8 keV). It displays medium- and long-term X-ray variability in observations spanning a period of 20 yr. The accurate Chandra position allows us to identify a blue optical continuum source (mv=19.7) at the position of NGC 5204 X-1, using newly obtained optical data from the INTEGRAL instrument on the William Herschel Telescope. 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| identifier | ISSN: 0035-8711 |
| ispartof | Monthly notices of the Royal Astronomical Society, 2001-08, Vol.325 (2), p.L7-L11 |
| issn | 0035-8711 1365-2966 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_26980570 |
| source | OUP_牛津大学出版社OA刊; EZB-FREE-00999 freely available EZB journals |
| subjects | galaxies: individual: NGC 5204 galaxies: stellar content X-rays: galaxies |
| title | The identification of an optical counterpart to the super-Eddington X-ray source NGC 5204 X-1 |
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