Browsing by Subject "Accretion"
Now showing items 1-6 of 6
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Broad-band reflection spectroscopy of MAXI J1535-571 using AstroSat: estimation of black hole mass and spin
(Oxford Univ Press, 2019)We report the results from AstroSat observations of the transient Galactic black hole X-ray binary MAXI J1535–571 during its hard-intermediate state of the 2017 outburst. We systematically study the individual and joint ... -
An extraordinary outburst in the massive protostellar system NGC 6334I-MM1: quadrupling of the millimeter continuum
(IOP, 2017)Based on sub-arcsecond Atacama Large Millimeter/submillimeter Array (ALMA) and Submillimeter Array (SMA) 1.3 mm continuum images of the massive protocluster NGC 6334I obtained in 2015 and 2008, we find that the dust emission ... -
Long-term X-ray variability characteristics of the narrow-line Seyfert 1 galaxy RE J1034+396
(Oxford Univ Press, 2018)We present the results of our study of the long-term X-ray variability characteristics of the narrow-line Seyfert 1 galaxy RE J1034+396. We use data obtained from the AstroSat satellite along with light curves obtained ... -
Periodicity in recurrent fast radio bursts and the origin of ultralong period magnetars
(Oxford Univ Press, 2020)The recurrent fast radio burst FRB 180916 was recently shown to exhibit a 16-d period (with possible aliasing) in its bursting activity. Given magnetars as widely considered FRB sources, this period has been attributed to ... -
Pressure balance and intrabinary shock stability in rotation-powered-state redback and transitional millisecond pulsar binary systems
(IOP Publishing, 2018)A number of low-mass millisecond pulsar (MSP) binaries in their rotation-powered state exhibit double-peaked X-ray orbital modulation centered at inferior pulsar conjunction. This state, which has been known to persist for ... -
Re-awakening of GRS 1716-249 after 23 yr, observed by Swift/XRT and NuSTAR
(Oxford Univ Press, 2019)In this work, we present a spectral and temporal analysis of Swift/XRT and NuSTAR observations of GRS 1716–249 during its recent 2016–2017 outburst. This low-mass X-ray binary underwent an extraordinary outburst after a ...