Properties of faint X-ray activity of XTE J1908+094 in 2019

Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/9050

Title:	Properties of faint X-ray activity of XTE J1908+094 in 2019
Authors:	Chatterjee, Debjit Jana, Arghajit Chatterjee, Kaushik Bhowmick, Riya Nath, Sujoy Kumar Chakrabarti, S. K Mangalam, A Debnath, Dipak
Keywords:	X-Rays: binaries Stars individual: (XTE J1908+094) Stars: black holes Accretion; accretion disks Shock waves Radiation: dynamics
Issue Date:	Jun-2021
Publisher:	Multidisciplinary Digital Publishing Institute
Citation:	Galaxies, Vol. 9, No. 2, 25
Abstract:	We study the properties of the faint X-ray activity of Galactic transient black hole candidate XTE J1908+094 during its 2019 outburst. Here, we report the results of detailed spectral and temporal analysis during this outburst using observations from Nuclear Spectroscopic Telescope Array (NuSTAR). We have not observed any quasi-periodic-oscillations (QPOs) in the power density spectrum (PDS). The spectral study suggests that the source remained in the softer (more precisely, in the soft–intermediate) spectral state during this short period of X-ray activity. We notice a faint but broad Fe Kα emission line at around 6.5 keV. We also estimate the probable mass of the black hole to be 6.5−0.7+0.5M☉, with 90% confidence.
Description:	Open Access This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/4.0/).
URI:	http://hdl.handle.net/2248/9050
ISSN:	2075-4434
Appears in Collections:	IIAP Publications

Files in This Item:

File	Description	Size	Format
Properties of faint X-ray activity of XTE J1908+094 in 2019.pdf		812.29 kB	Adobe PDF	View/Open

DSpace JSPUI