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Astrophysics > High Energy Astrophysical Phenomena

arXiv:2108.07456 (astro-ph)
[Submitted on 17 Aug 2021 (v1), last revised 6 Sep 2022 (this version, v3)]

Title:Accretion Flow Properties of MAXI J1910-057/Swift J1910.2-0546 During Its 2012-13 Outburst

Authors:Sujoy Kumar Nath, Dipak Debnath, Kaushik Chatterjee, Arghajit Jana, Debjit Chatterjee, Riya Bhowmick
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Abstract:Galactic black hole candidate MAXI J1910-057/Swift J1910.2-0546 was simultaneously discovered by MAXI/GSC and Swift/BAT satellites during its first outburst in 2012. We study the detailed spectral and temporal properties of the source in a broad energy range using archival data from Swift/XRT, MAXI/GSC and Swift/BAT satellites/instruments. Low frequency quasi periodic oscillations are observed during the outburst. The combined 1-50 keV spectra are analyzed using the transonic flow solution based Two Component Advective Flow (TCAF) model. Based on the variations of soft and hard X-ray fluxes, their hardness ratios and the variations of the spectral model fitted parameters, we find that the source has evolved through six spectral states. We interpret this spectral state evolution to be a result of two connected outbursts where the leftover matter from a primary outburst is released from the pile-up radius due to a sudden rise of viscosity causing a reflare/secondary outburst. We show a possible configuration of the evolution of accretion flow during the outburst. From the spectral analysis with TCAF model, we estimate the mass of the black hole to be $9.97^{+3.51}_{-3.24}$ $M_\odot$ , and the source distance is estimated to be $3.4-9.6$~kpc from transition luminosity considerations.
Comments: 15 Pages, 8 Figures, 3 Tables (accepted for publication in Advances in Space Research)
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE)
Cite as: arXiv:2108.07456 [astro-ph.HE]
  (or arXiv:2108.07456v3 [astro-ph.HE] for this version)
  https://doi.org/10.48550/arXiv.2108.07456
Related DOI: https://doi.org/10.1016/j.asr.2022.08.013

Submission history

From: Dipak Debnath [view email]
[v1] Tue, 17 Aug 2021 06:24:20 UTC (199 KB)
[v2] Thu, 2 Jun 2022 07:14:28 UTC (502 KB)
[v3] Tue, 6 Sep 2022 12:46:48 UTC (509 KB)
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