Spectro-temporal and type I X-ray burst analysis of GX 3+1 using AstroSat observations
- Title
- Spectro-temporal and type I X-ray burst analysis of GX 3+1 using AstroSat observations
- Creator
- Thomas N.T.; Gudennavar S.B.; Bubbly S.G.
- Description
- GX 3+1, an atoll type neutron star low-mass X-ray binary, was observed four times by Soft X-ray Telescope and The Large Area X-ray Proportional Counter on-board AstroSat between 2017 October 5 and 2018 August 9. The hardness-intensity-diagram of the source showed it to be in the soft spectral state during all the four observations. The spectra of the source could be adequately fit with a model consisting of blackbody (bbody) and powerlaw (powerlaw) components. This yielded the blackbody radius and mass accretion rate to be ?8 km and ?2 10?9 M? y?1, respectively. In one of the observations, a type I X-ray burst having a rise and e-folding time of 0.6 and 5.6 s, respectively, was detected. Time-resolved spectral analysis of the burst showed that the source underwent a photospheric radius expansion. The radius of the emitting blackbody in GX 3+1 and its distance were estimated to be 9.19 +?00.8297 km and 10.17 +?00.1807 kpc, respectively. Temporal analysis of the burst yielded upper limits of the fractional root mean square amplitude of 7 per cent, 5 per cent, and 6 per cent during burst start, burst maximum, and right after the radius expansion phase, respectively. 2023 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.
- Source
- Monthly Notices of the Royal Astronomical Society, Vol-521, No. 1, pp. 433-442.
- Date
- 2023-01-01
- Publisher
- Oxford University Press
- Subject
- accretion, accretion discs; stars: neutron; X-rays: binaries; X-rays: bursts
- Coverage
- Thomas N.T., Department of Physics and Electronics, CHRIST University, Karnataka, Bangalore, 560029, India; Gudennavar S.B., Department of Physics and Electronics, CHRIST University, Karnataka, Bangalore, 560029, India; Bubbly S.G., Department of Physics and Electronics, CHRIST University, Karnataka, Bangalore, 560029, India
- Rights
- All Open Access; Green Open Access
- Relation
- ISSN: 358711; CODEN: MNRAA
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Thomas N.T.; Gudennavar S.B.; Bubbly S.G., “Spectro-temporal and type I X-ray burst analysis of GX 3+1 using AstroSat observations,” CHRIST (Deemed To Be University) Institutional Repository, accessed March 4, 2025, https://archives.christuniversity.in/items/show/14268.