Discovery of evolving low-frequency QPOs in hard X-rays (∼100 keV) observed in black hole Swift J1727.8-1613 with AstroSat
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DOI: 10.1093/mnras/stae1208
Abstract: We report the first detection of evolving Low-Frequency Quasi-periodic Oscillation (LFQPO) frequencies in hard X-rays upto 100 keV with AstroSat/LAXPC during ‘unusual’ outburst phase of Swift J1727.8-1613 in hard-intermediate state (HIMS). The observed LFQPO in 20–100 keV… read more here.
Keywords: j1727 1613; 100 kev; evolving low; hard rays ... See more keywords