Accretion properties of MAXI J1813-095 during its failed outburst in 2018

作     者：Arghajit Jana Gaurava K.Jaisawal Sachindra Naik Neeraj Kumari Debjit Chatterjee KaushikChatterjee Riya Bhowmick Sandip KChakrabarti Hsiang-Kuang Chang Dipak Debnath Arghajit Jana;Gaurava K.Jaisawal;Sachindra Naik;Neerai Kumari;Debiit Chatterjee;Kaushik Chatterjee;Riya Bhowmick;Sandip K.Chakrabarti;Hsiang-Kuang Chang;Dipak Debnath

作者机构：Astronomy&Astrophysics DivisionPhysical Research LaboratoryNavrangpuraAhmedabad 380009India National Space InstituteTechnical University of DenmarkElektrovej327-328DK-2800 LyngbyDenmark High Energy AstrophysicsIndian Centre for Space PhysicsGaria St RoadKolkata 700084India Department of PhysicsIndian Institute of TechnologyGandhinagar 382355GujaratIndia Indian Institute of AstrophysicsKoramangalaBangalore 560034India Department of Physics“National Tsing Hua University”Hsinchu 30013China 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2021年第21卷第5期

页      面：235-246页

核心收录：

学科分类：07[理学] 070401[理学-天体物理] 0704[理学-天文学] 

基　　金：This research has made use of data and/or software provided by the High Energy Astrophysics Science Archive Research Center(HEASARC) which is a service of the Astrophysics Science Division at NASA/GSFC and the High Energy Astrophysics Division of the Smithsonian Astrophysical Observatory This research has made use of the NuSTAR Data Analysis Software(NuSTARDAS)jointly developed by the ASI Science Data Center(ASDC,Italy) California Institute of Technology(Caltech,USA) This work has made use of XRT data supplied by the UK Swift Science Data Centre at the University of Leicester,UK.A.J.and N.K.acknowledge support from the research fellowship from Physical Research Laboratory,Ahmedabad,India funded by the Department of Space,Government of India for this work.K.C.acknowledges support from the DST/INSPIRE Fellowship(IF170233) R.B.acknowledges support from the CSIR-UGC NET qualified UGC fellowship(June-2018,527223) Research by S.K.C.and D.D.is supported in part by the Higher Education Dept.of the Govt.of West Bengal,India.S.K.C.and D.D.also acknowledge partial support from ISRO sponsored RESPOND project(ISRO/RES/2/418/17-18)fund.H.-K.C.is supported by MOST of Taiwan under grants MOST/106-2923-M-007-002-MY3 and MOST/108-2112-M-007-003.D.D.acknowledges support from DST/GITA sponsored India-Taiwan collaborative project(GITA/DST/TWN/P-76/2017)fund 

主　　题：X-Rays:binaries stars individual:(MAXI J1813-095) stars:black holes accretion,accretion disks–shock waves radiation:dynamics 

摘      要：We present the results obtained from detailed timing and spectral studies of a black hole candidate MAXI J1813-095 using Swift,NICER,and NuSTAR observations during its 2018 *** timing behavior of the source is mainly studied by examining NICER light curves in the 0.5−10 keV *** did not find any signature of quasi-periodic oscillations in the power density spectra of the *** carry out spectral analysis with a combined disk blackbody&power law model,and physical two-component advective flow(TCAF)*** the combined disk blackbody&power-law model,we extracted thermal and non-thermal fluxes,photon index and inner disk *** also find evidence for weak reflection in the *** have tested the physical TCAF model on a broadband spectrum from NuSTAR and Swift/*** parameters like mass accretion rates,the size of Compton clouds and the shock strength are *** result affirms that the source remained in the hard state during the entire outburst which indicates a‘failed’*** estimate the mass of the black hole as 7.4±1.5M⊙from the spectral study with the TCAF *** apply the LAOR model for the Fe K line *** this,the spin parameter of the black hole is ascertained as a^(∗)*** inclination angle of the system is estimated to be in the range of 28°−45°from the reflection *** find the source distance to be∼6 kpc.