X-Ray Study of Discrete Sources in NGC 1808 with Chandra

Heike Kazunori; Awaki Hisamitsu

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X-Ray Study of Discrete Sources in NGC 1808 with Chandra

机译：Chandra对NGC 1808中离散源的X射线研究

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Weanalyzeddiscretesourcesinatypicalstarburstgalaxy,NGC1808,withChandrainordertostudytherelationbetweenX-rayandstar-formingactivities.Wedetectedthirty-eightX-raysourceswithanX-rayluminosity($$L_{ mX}$$)of$$gt$$10$$^{37}$$ergs$$^{-1}$$inthecentral5$$^{prime} imes$$5$$^{prime}$$(13.4kpc$$ imes$$13.4kpc)region.About90%ofthehardX-rayspreviouslydetectedwithASCAcamefromthesediscretesources.Amongthedetectedsources,sixteensourceshadan$$L_{ mX}$$of$$gt$$10$$^{38}$$ergs$$^{-1}$$.ThenumberofluminoussourcesisnearlyequaltothatofM82,althoughtheirconcentrationintothecentralstar-formingregionislowerthanthatofM82.ThereareseveralsoftX-raysourceswithatemperatureof0.6keVinthecentralstar-formingregion.TheX-raypropertiesofthesoftsourcesaresimilartothoseofaHIIregion,orasupernovaremnant.TheexistenceofbothluminoussourcesandsoftX-raysourcesindicatesthestar-formingactivityofNGC1808.However,wedetectedonlyafewcandidatesofhigh-massX-raybinariesthatwouldbeproducedbyenhancedstar-formingactivity.ThismaybeduetothestarburstageofNGC1808.

机译：我们分析了离散的典型星际星系星系（NGC1808），并使用了Chandrain指令研究了X射线与形成恒星的活动之间的关系。我们检测到38个X射线源具有X射线发光度（$$ L_ {mX} $$）$ g $$$$$$$-1 ^ {}} $ inthecentral5 $$ ^ {prime} imes $$ 5 $$ ^ {prime} $$（13.4kpc $$ imes $$ 13.4kpc）区域。以前使用ASCA探测到的硬X射线中约有90％来自这些离散光源。在检测到的光源中，有十六个光源dan丹$$ L_ {mX} $ $$ GT 10 $$ ^ {38} $$尔格$$ ^ { - 1}。$$ ThenumberofluminoussourcesisnearlyequaltothatofM82，althoughtheirconcentrationintothecentralstar-formingregionislowerthanthatofM82.ThereareseveralsoftX-raysourceswithatemperatureof0.6keVinthecentralstar-formingregion.TheX-raypropertiesofthesoftsourcesaresimilartothoseofaHIIregion，orasupernovaremnant.TheexistenceofbothluminoussourcesandsoftX-raysourcesindicatesthestar-formingactivityofNGC1808.However ，我们检测到只有增强的恒星形成活动才能产生出高质量X射线双星的少量候选物。 NGC1808的rstage。

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《PASJ: Publications of the Astronomical Society of Japan》 |2007年第3期|共页
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Heike Kazunori; Awaki Hisamitsu;
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1. X-ray study of discrete sources in NGC 1808 with Chandra [J] . Heike K, Awaki H PASJ: Publications of the Astronomical Society of Japan . 2007,第3期

机译：用钱德拉对NGC 1808中的离散源进行X射线研究
2. Study of X-ray point sources in NGC 5643 and NGC 7457 with Chandra [J] . Singha Akram Chandrajit, Devi A. Senorita Astrophysics and space science . 2017,第12期

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3. Optical counterparts of X-ray point sources observed by Chandra in NGC 5128: 20 new globular cluster X-ray sources [J] . Minniti D., Rejkuba M., Funes JG., The Astrophysical journal . 2004,第2aParta1期

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4. Studies on X-ray Sources from Chandra Observations of the Galactic Globular Cluster M92 (NGC 6341) [C] . Ting-Ni Lu, Albert K. H. Kong Suzaku international conference on energetic cosmos : from Suzaku to ASTRO-H . 2010

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5. A systematic study of variable absorption lines in the black hole X-ray binary Cygnus X-1 with the Chandra X-ray observatory. [D] . Chang, Chulhoon. 2009

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6. A Census of X-ray gas in NGC 1068: Results from 450ks of Chandra HETG Observations [O] . T. Kallman, Daniel A. Evans, H. Marshall, -1

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7. Optical Counterparts of X-Ray Point Sources Observed by CHANDRA in NGC5128: 20 New Globular Cluster X-Ray Sources [O] . Minniti, Dante, Rejkuba, Marina, J., Jose G. Funes S., 2003

机译：CHaNDRa在中国观察X射线源光学对应物 NGC5128：20个新的球状星团X射线源

X-Ray Study of Discrete Sources in NGC 1808 with Chandra

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