Broadband spectro-temporal investigation of neutron star low-mass X-ray binary GX 349+2

Autor: Unnati Kashyap, Manoneeta Chakraborty, Sudip Bhattacharyya, Biki Ram

We report a broadband investigation of the Z-type neutron star (NS) low mass X-ray binary (LMXB) GX 349+2 using AstroSat and NICER. AstroSat observed the source exhibiting large scale variability in its normal branch (NB) /flaring branch (FB) vertex

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a90f0fc71ed90d30ddb5640dace92b0a
http://arxiv.org/abs/2305.15607

Burst-Disk Interaction in 4U 1636-536 as observed by NICER

Autor: Tolga Güver, Z. Funda Bostancı, Tuğba Boztepe, Ersin Göğüş, Peter Bult, Unnati Kashyap, Manoneeta Chakraborty, David R. Ballantyne, R. M. Ludlam, C. Malacaria, Gaurava K. Jaisawal, Tod E. Strohmayer, Sebastien Guillot, Mason Ng

Publikováno v: Astrophys.J.
Astrophys.J., 2022, 935 (2), pp.154. ⟨10.3847/1538-4357/ac8106⟩
Güver, T, Bostancı, Z F, Boztepe, T, Göğüş, E, Bult, P, Kashyap, U, Chakraborty, M, Ballantyne, D R, Ludlam, R M, Malacaria, C, Jaisawal, G K, Strohmayer, T E, Guillot, S & Ng, M 2022, ' Burst–Disk Interaction in 4U 1636–536 as Observed by NICER ', Astrophysical Journal, vol. 935, no. 2, 154 . https://doi.org/10.3847/1538-4357/ac8106

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 course of a three year monitoring campaign. We performed time resolved spectroscopy for 40 of these

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c0e2d1356e8d4a85bcfeb8315cac95d5

A machine-learning approach for classifying low-mass X-ray binaries based on their compact object nature

Autor: Mariano Mendez, Kaushal Sharma, Ajit K. Kembhavi, Jakub K. Orwat-Kapola, K. Alabarta, R. Pattnaik, Manoneeta Chakraborty, Diego Altamirano

Publikováno v: Monthly Notices of the Royal Astronomical Society, 501(3457). Oxford University Press

Low Mass X-ray binaries (LMXBs) are binary systems where one of the components is either a black hole or a neutron star and the other is a less massive star. It is challenging to unambiguously determine whether a LMXB hosts a black hole or a neutron

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e463af5453fda0028acf7e1a2289c0d0
https://eprints.soton.ac.uk/447641/

Search for Intermittent X-ray Pulsations from Neutron Stars in Low Mass X-ray Binaries

Autor: Ersin Gogus, Manoneeta Chakraborty, Yunus Emre Bahar

We present the results of our extensive binary orbital motion corrected pulsation search for 13 low mass X-ray binaries (LMXBs). These selected sources exhibit burst oscillations in X-rays with frequencies ranging from 45 to 1122 Hz, and have a binar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d7a2072cade65fd4422e177dc707b6d

GRB 200415A: A Short Gamma-Ray Burst from a Magnetar Giant Flare?

Autor: Jun Yang, Vidushi Sharma, Ye Li, Shaolin Xiong, Bin-Bin Zhang, Xiao-Hong Zhao, Jin-Hang Zou, Bing Zhang, Yu-Han Yang, Lang Shao, Cheng-Kui Li, Xiaobo Li, Shuo Xiao, Yi-Si Yang, Jagdish C. Joshi, Qi Luo, Vikas Chand, C. X. Liu, Manoneeta Chakraborty

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 (GRBs). In this paper, we perform a comprehensive analysis of the high-energy data of the recent

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f2de5d377424402b3d0b2359cf8794c