Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Articles Article Faculty Publications -Articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Time resolved spectroscopy of a GRS 1915 + 105 flare during its unusual low state using AstroSat Subject The topic of the resource accretion, accretion discs; stars: black holes; stars: flare; stars: individual: GRS 1915 + 105; X-rays: binaries Description An account of the resource Since its disco v ery in 1992, GRS 1915 + 105 has been among the brightest sources in the X-ray sky. Ho we ver, in early 2018, it dimmed significantly and has stayed in this faint state ever since. We report on AstroSat and NuSTAR observation of GRS 1915 + 105 in its unusual low/hard state during 2019 May. We performed time-resolved spectroscopy of the X-ray flares observed in this state and found that the spectra can be fitted well using highly ionized absorption models. We further show that the spectra can also be fitted using a highly relativistic reflection dominated model, where for the lamp post geometry, the X-ray emitting source is al w ays very close to the central black hole. For both interpretations, the flare can be attributed to a change in the intrinsic flux, rather than dramatic variation in the absorption or geometry. These reflection dominated spectra are very similar to the reflection dominated spectra reported for active galactic nuclei in their low flux states. 2024 The Author(s). Creator An entity primarily responsible for making the resource Boked S.; Maqbool B.; Jithesh V.; Misra R.; Bhat N.I.; Bhulla Y. Source A related resource from which the described resource is derived Monthly Notices of the Royal Astronomical Society, Vol-528, No. 4, pp. 7016-7026. Publisher An entity responsible for making the resource available Oxford University Press Date A point or period of time associated with an event in the lifecycle of the resource 2024-01-01 Identifier An unambiguous reference to the resource within a given context <a href="https://doi.org/10.1093/mnras/stae440" target="_blank" rel="noreferrer noopener">https://doi.org/10.1093/mnras/stae440</a> <br /><br /><a href="https://www.scopus.com/inward/record.uri?eid=2-s2.0-85185892060&amp;doi=10.1093%2Fmnras%2Fstae440&amp;partnerID=40&amp;md5=4ff771238178dd09610e3877d29471d4" target="_blank" rel="noreferrer noopener">https://www.scopus.com/inward/record.uri?eid=2-s2.0-85185892060&amp;doi=10.1093%2fmnras%2fstae440&amp;partnerID=40&amp;md5=4ff771238178dd09610e3877d29471d4</a> Rights Information about rights held in and over the resource All Open Access; Gold Open Access; Green Open Access Relation A related resource ISSN: 358711; CODEN: MNRAA Format The file format, physical medium, or dimensions of the resource Online Language A language of the resource English Type The nature or genre of the resource Article Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Boked S., Department of Physics, University of Kashmir, Srinagar, 190006, India; Maqbool B., Islamic University of Science and Technology Awantipora, Pulwama, 192122, India; Jithesh V., Department of Physics and Electronics, CHRIST (Deemed to be University), Hosur Main Road, Bengaluru, 560029, India; Misra R., Inter-University Centre for Astronomy and Astrophysics, Post Bag 4, Ganeshkhind, Pune, 411007, India; Bhat N.I., Department of Physics, University of Kashmir, Srinagar, 190006, India, Islamic University of Science and Technology Awantipora, Pulwama, 192122, India; Bhulla Y., Pacific Academy of Higher Education and Research University, Udaipur, 313003, India