Search Results - "Chakraborty, Manoneeta"
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EVIDENCE OF THERMONUCLEAR FLAME SPREADING ON NEUTRON STARS FROM BURST RISE OSCILLATIONS
Published in The Astrophysical journal (01-09-2014)“…Burst oscillations during the rising phases of thermonuclear X-ray bursts are usually believed to originate from flame spreading on the neutron star surface…”
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Accretion Disks and Coronae in the X-Ray Flashlight
Published in Space science reviews (01-02-2018)“…Plasma accreted onto the surface of a neutron star can ignite due to unstable thermonuclear burning and produce a bright flash of X-ray emission called a…”
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Spectro-temporal investigation of the black hole X-ray transient 4U 1543–475 during the 2021 outburst
Published in Journal of astrophysics and astronomy (18-10-2024)“…We report a detailed spectro-temporal analysis of the black hole low mass X-ray binary 4U 1543−475 during its 2021 outburst using the data from the Large Area…”
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VARIATION OF SPECTRAL AND TIMING PROPERTIES IN THE EXTENDED BURST TAILS FROM THE MAGNETAR 4U 0142+61
Published in The Astrophysical journal (10-03-2016)“…ABSTRACT Extended emission episodes with an intensity above the preburst level are observed following magnetar bursts from a number of soft gamma repeaters and…”
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Probing spectral and temporal evolution of the neutron star low-mass X-ray binary 4U 1724–30 with AstroSat
Published in Monthly notices of the Royal Astronomical Society (19-04-2022)“…ABSTRACT We report the broad-band spectro-temporal study of the poorly studied accreting neutron star (NS) low mass X-ray binary (LMXB) 4U 1724–30 using data…”
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Broad-band time-resolved spectroscopy of thermonuclear X-ray bursts from 4U 1636−536 using AstroSat
Published in Monthly notices of the Royal Astronomical Society (01-01-2022)“…ABSTRACT Broad-band spectral studies of type I X-ray bursts can put strong constraints on the physics of burst spectra as well as their interaction with the…”
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Broad-band spectro-temporal investigation of neutron star low-mass X-ray binary GX 349+2
Published in Monthly notices of the Royal Astronomical Society (30-05-2023)“…ABSTRACT We report a broad-band investigation of the Z-type neutron star (NS) low mass X-ray binary (LMXB) GX 349+2 using AstroSat and Neutron star Interior…”
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Thermonuclear X-ray bursts from the 401-Hz accreting pulsar IGR J17498−2921: indication of burning in confined regions
Published in Monthly notices of the Royal Astronomical Society (01-05-2012)“…We use the 2011 Rossi X-ray Timing Explorer (RXTE) Proportional Counter Array (PCA) data of the 401-Hz accreting pulsar and burster IGR J17498−2921 to perform…”
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Revisiting the subpulse drifting phenomenon in PSR J1822−2256: drift modes, sparks, and emission heights
Published in Monthly notices of the Royal Astronomical Society (01-01-2022)“…ABSTRACT Subpulse drifting in pulsar radio emission is considered to be one of the most promising phenomena for uncovering the underlying physical processes…”
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PSR J0026−1955: A curious case of evolutionary subpulse drifting and nulling
Published in Monthly notices of the Royal Astronomical Society (12-07-2023)“…ABSTRACT PSR J0026−1955 was independently discovered by the Murchison Widefield Array recently. The pulsar exhibits subpulse drifting, where the radio emission…”
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Terzan 5 transient IGR J17480−2446: variation of burst and spectral properties with spectral states
Published in Monthly notices of the Royal Astronomical Society (21-11-2011)“…We study the spectral-state evolution of the Terzan 5 transient neutron star low-mass X-ray binary IGR J17480−2446, and how the best-fitting spectral…”
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Single-pulse analysis and average emission characteristics of PSR J1820−0427 from observations made with the MWA and uGMRT
Published in Monthly notices of the Royal Astronomical Society (22-06-2023)“…ABSTRACT We have studied the pulse-to-pulse variability in PSR J1820−0427 and its frequency dependence using high-quality, wide-band observations made with the…”
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GRB 200415A: A Short Gamma-Ray Burst from a Magnetar Giant Flare?
Published in The Astrophysical journal (01-08-2020)“…The giant flares of soft gamma-ray repeaters (SGRs) have long been proposed to contribute to at least a subsample of the observed short gamma-ray bursts…”
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X-RAY BURSTS FROM THE TERZAN 5 TRANSIENT IGR J17480-2446: NUCLEAR RATHER THAN GRAVITATIONAL
Published in The Astrophysical journal (2011)Get full text
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Burst–Disk Interaction in 4U 1636–536 as Observed by NICER
Published in The Astrophysical journal (01-08-2022)“…Abstract We present the detection of 51 thermonuclear X-ray bursts observed from 4U 1636–536 by the Neutron Star Interior Composition Explorer (NICER) over the…”
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Variable absorption line in XTE J1810-197
Published in New astronomy (01-02-2019)“…We report the results of a long-term spectral and timing study of the first transient magnetar, XTE J1810-197 which was discovered in 2003, when its X-ray…”
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Thermonuclear X-Ray Bursts with Late Secondary Peaks Observed from 4U 1608–52
Published in The Astrophysical journal (01-03-2021)“…Abstract We report the temporal and spectral analysis of three thermonuclear X-ray bursts from 4U 1608−52, observed by the Neutron Star Interior Composition…”
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Time- and Energy-dependent Characteristics of Thermonuclear Burst Oscillations
Published in The Astrophysical journal (20-12-2017)“…We have investigated temporal and spectral properties of a large sample of thermonuclear bursts with oscillations from eight different sources with spin…”
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Square Kilometre Array—India Consortium: Education and Public Outreach
Published in Journal of astrophysics and astronomy (22-12-2023)“…This paper presents a report on the activities and the proposed action plan of the Education and Public Outreach Working Group (EPO WG) of Square Kilometre…”
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