{ "id": "2002.08140", "version": "v1", "published": "2020-02-19T12:41:10.000Z", "updated": "2020-02-19T12:41:10.000Z", "title": "Detection of the thermonuclear X-ray bursts and dips from the X-ray binary 4U 1323-62 with AstroSat/LAXPC", "authors": [ "Yashpal Bhulla", "Jayashree Roy", "S. N. A Jaaffrey" ], "categories": [ "astro-ph.HE" ], "abstract": "Using data from the Large Area X-ray Proportional Counter (LAXPC) on the \\textit{AstroSat} satellite, we observed the Type-1 thermonuclear X-ray bursts from the Low Mass X-ray Binary Neutron Star 4U 1323-62. The observations of 4U 1323-62 were carried out during the performance verification phase of the \\textit{AstroSat} satellite showed six thermonuclear X-ray bursts in a total effective exposure of $\\sim$ 49.5 ks for about two consecutive days. Recurrence time of the detected thermonuclear bursts is in accordance with the orbital period of the source $\\sim$ 9400 seconds. Moreover, the light curve of 4U 1323-62 revealed the presence of two dips. We presented the results from time-resolved spectroscopy performed during all of the six X-ray bursts and also report the detection of a known low frequency Quasi-periodic oscillation (LFQPO) at $\\sim$ 1 Hz, from the source. However, any evidence of kilohertz QPO was not found. We have shown the burst profile at different energy ranges. Assuming a distance of 10 kpc, we observed a mean flux $\\sim$ 1.8 $\\times$ $10^{-9}$ erg $cm^2$ $s^{-1}$. The radius of the blackbody is found to be highly consistent with the blackbody temperature and the blackbody flux of the bursts.", "revisions": [ { "version": "v1", "updated": "2020-02-19T12:41:10.000Z" } ], "analyses": { "keywords": [ "thermonuclear x-ray bursts", "x-ray binary 4u", "area x-ray proportional counter", "binary neutron star 4u", "mass x-ray binary neutron star" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }