Evidence for a Cool Disk and Inhomogeneous Coronae from Wide-Band Temporal Spectroscopy of Cygnus X-1 with Suzaku

Yamada Shina€?ya; Makishima Kazuo; Done Chris; Torii Shunsuke; Noda Hirofumi; Sakurai Soki

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Evidence for a Cool Disk and Inhomogeneous Coronae from Wide-Band Temporal Spectroscopy of Cygnus X-1 with Suzaku

机译：天鹅座X-1的宽频带时间光谱与朱雀作证的一个凉爽磁盘和不均匀日冕的证据

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UnifiedX-rayspectralandtimingstudiesofCygnusX-1inthelow/hardandhardintermediatestatewereconductedinamodel-independentmanner,usingbroadbandSuzakudataacquiredon25occasionsfrom2005to2009withatotalexposureof$$sim$$450ks.Theunabsorbed0.1a€“500keVsourceluminositychangedover0.8%a€“2.8%oftheEddingtonlimitfor14.8solarmasses.Variationsonshort(1a€“2seconds)andlong(daystomonths)timescalesrequireatleastthreeseparatecomponents:aconstantcomponentlocalizedbelow$$sim$$2keV,abroadsoftonedominatinginthe2a€“10keVrange,andahardonemostlyseeninthe10a€“300keVrange.Inviewofthetruncateddisk/hotinner-flowpicture,thesearerespectivelyinterpretedasemissionfromthetruncatedcooldisk,asoftComptoncomponent,andahardComptoncomponent.Long-termspectralevolutioncanbeproducedbytheconstantdiskincreasingintemperatureandluminosityasthetruncationradiusdecreases.ThesoftComptoncomponentlikewiseincreases,butthehardComptondoesnot,sothatthespectruminthehardintermediatestateisdominatedbythesoftComptoncomponent;ontheotherhand,thehardComptoncomponentdominatesthespectruminthedimlow/hardstate,probablyassociatedwithavariablesoftemissionprovidingseedphotonsfortheComptonization.

机译：UnifiedX-rayspectralandtimingstudiesofCygnusX-1inthelow / hardandhardintermediatestatewereconductedinamodel-independentmanner，usingbroadbandSuzakudataacquiredon25occasionsfrom2005to2009withatotalexposureof $$ SIM $$ 450ks.Theunabsorbed0.1a€“500keVsourceluminositychangedover0.8％一€“2.8％oftheEddingtonlimitfor14.8solarmasses.Variationsonshort（1A€“2秒）andlong（daystomonths）timescalesrequireatleastthreeseparatecomponents：aconstantcomponentlocalizedbelow $$ SIM $$ 2keV，abroadsoftonedominatinginthe2a€“10keVrange，andahardonemostlyseeninthe10a€“300keVrange.Inviewofthetruncateddisk / hotinner-flowpicture，thesearerespectivelyinterpretedasemissionfromthetruncatedcooldisk，asoftComptoncomponent，andahardComptoncomponent.Long-termspectralevolutioncanbeproducedbytheconstantdiskincreasingintemperatureandluminosityasthetruncationradiusdecreases.ThesoftComptoncomponentlikewiseincreases，butthehardComptondoesnot，sothatthespectruminthehardintermediatestateisdominatedbythesoftComptoncomponent; ontheotherhand，thehardCom pton组分主要控制着最低/硬态的光谱，可能与可变的软发射相关，从而为种子化提供了种子光子。

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《PASJ: Publications of the Astronomical Society of Japan》 |2013年第4期|共页
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Yamada Shina€?ya; Makishima Kazuo; Done Chris; Torii Shunsuke; Noda Hirofumi; Sakurai Soki;
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1. Evidence for a cool disk and inhomogeneous coronae from wide-band temporal spectroscopy of cygnus X-1 with suzaku [J] . Yamada S., Makishima K., Done C., PASJ: Publications of the Astronomical Society of Japan . 2013,第4期

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2. Accretion Disks with Coronae in Cygnus X-1: The Role of a Transition Layer [J] . Sergei Nayakshin123, James B. Dove4 The Astrophysical journal . 2008,第2期

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3. NuSTAR AND SUZAKU OBSERVATIONS OF THE HARD STATE IN CYGNUS X-1: LOCATING THE INNER ACCRETION DISK [J] . M. L. Parker, J. A. Tomsick, J. M. Miller, The Astrophysical journal . 2015,第1期

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4. Pion production In The Inner Disk Around Cygnus X-1 [C] . C. Meirelles Filho, C. L. Lima, H. Miyake, International Workshop on Relativistic Aspects of Nuclear Physics . 2004

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7. Evidence for a Cool Disk and Inhomogeneous Coronae from Wide-band Temporal Spectroscopy of Cygnus X-1 with Suzaku [O] . Kazuo Makishima, Chris Done, Shunsuke Torii, 2016

机译：来自朱雀天鹅座X-1的宽带时间光谱的冷盘和非均匀Coronae的证据

Evidence for a Cool Disk and Inhomogeneous Coronae from Wide-Band Temporal Spectroscopy of Cygnus X-1 with Suzaku

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