{"title":"用 AstroSat 卫星观测到的环礁源 GX 9+9 的光谱-时间研究","authors":"Sree Bhattacherjee, Arbind Pradhan, Biplob Sarkar","doi":"arxiv-2409.11721","DOIUrl":null,"url":null,"abstract":"In this work, we performed a spectro-temporal investigation of the low-mass\nX-ray binary GX 9+9 using the Large Area X-ray Proportional Counter (LAXPC) and\nSoft X- ray Telescope (SXT) observation on board AstroSat. The source was\ndetected in the soft state during the observation, which results in a disk\ndominating energy spectrum within the energy range of 0.7-25.0 keV. We carried\nout the analysis at different flux levels. In the temporal analysis, LAXPC data\nin all flux levels showed the presence of noise components, describing broad\nLorentzian components. We modeled the energy-dependent temporal properties of\nthe source in order to identify the radiative origin of the observed\nvariability. This source is not a well-studied source; hence we attempt to\nestimate various source characteristics like inner-disk radius, flux, and\ninner-disk temperature.","PeriodicalId":501343,"journal":{"name":"arXiv - PHYS - High Energy Astrophysical Phenomena","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Spectro-temporal study of atoll source GX 9+9 observed with AstroSat\",\"authors\":\"Sree Bhattacherjee, Arbind Pradhan, Biplob Sarkar\",\"doi\":\"arxiv-2409.11721\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this work, we performed a spectro-temporal investigation of the low-mass\\nX-ray binary GX 9+9 using the Large Area X-ray Proportional Counter (LAXPC) and\\nSoft X- ray Telescope (SXT) observation on board AstroSat. The source was\\ndetected in the soft state during the observation, which results in a disk\\ndominating energy spectrum within the energy range of 0.7-25.0 keV. We carried\\nout the analysis at different flux levels. In the temporal analysis, LAXPC data\\nin all flux levels showed the presence of noise components, describing broad\\nLorentzian components. We modeled the energy-dependent temporal properties of\\nthe source in order to identify the radiative origin of the observed\\nvariability. This source is not a well-studied source; hence we attempt to\\nestimate various source characteristics like inner-disk radius, flux, and\\ninner-disk temperature.\",\"PeriodicalId\":501343,\"journal\":{\"name\":\"arXiv - PHYS - High Energy Astrophysical Phenomena\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-09-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv - PHYS - High Energy Astrophysical Phenomena\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/arxiv-2409.11721\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - High Energy Astrophysical Phenomena","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.11721","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
在这项工作中，我们利用 AstroSat 上的大面积 X 射线比例计数器（LAXPC）和软 X 射线望远镜（SXT）观测，对低质量 X 射线双星 GX 9+9 进行了光谱时间调查。在观测过程中发现该源处于软态，这导致在 0.7-25.0 keV 的能量范围内出现了一个以圆盘为主的能谱。我们在不同的通量水平下进行了分析。在时间分析中，LAXPC 数据在所有通量水平上都显示出噪声成分的存在，描述了宽广的洛伦兹成分。我们模拟了该源随能量变化的时间特性，以确定观测到的可变性的辐射来源。这个源的研究并不深入，因此我们试图估算各种源特征，如内盘半径、通量和内盘温度。
Spectro-temporal study of atoll source GX 9+9 observed with AstroSat
In this work, we performed a spectro-temporal investigation of the low-mass
X-ray binary GX 9+9 using the Large Area X-ray Proportional Counter (LAXPC) and
Soft X- ray Telescope (SXT) observation on board AstroSat. The source was
detected in the soft state during the observation, which results in a disk
dominating energy spectrum within the energy range of 0.7-25.0 keV. We carried
out the analysis at different flux levels. In the temporal analysis, LAXPC data
in all flux levels showed the presence of noise components, describing broad
Lorentzian components. We modeled the energy-dependent temporal properties of
the source in order to identify the radiative origin of the observed
variability. This source is not a well-studied source; hence we attempt to
estimate various source characteristics like inner-disk radius, flux, and
inner-disk temperature.
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