Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Birendra Chhotaray"'
Autor:
Birendra Chhotaray, Gaurava K. Jaisawal, Prantik Nandi, Sachindra Naik, Neeraj Kumari, Mason Ng, Keith C. Gendreau
Publikováno v:
The Astrophysical Journal, Vol 963, Iss 2, p 132 (2024)
We present the results obtained from detailed X-ray timing and spectral studies of X-ray pulsar Swift J0243.6+6124 during its giant and normal X-ray outbursts between 2017 and 2023 observed by the Neutron star Interior Composition Explorer (NICER). W
Externí odkaz:
https://doaj.org/article/c6b08266771745609328a8151834b8d5
Autor:
Birendra Chhotaray, Gaurava K Jaisawal, Neeraj Kumari, Sachindra Naik, Vipin Kumar, Arghajit Jana
Publikováno v:
Chhotaray, B, Jaisawal, G K, Kumari, N, Naik, S, Kumar, V & Jana, A 2023, ' Optical and X-ray studies of Be/X-ray binary 1A 0535+262 during its 2020 giant outburst ', Monthly Notices of the Royal Astronomical Society, vol. 518, no. 4, pp. 5089-5105 . https://doi.org/10.1093/mnras/stac3354
We report results obtained from the optical and X-ray studies of the Be/X-ray binary 1A 0535+262/HD 245770 during the 2020 October giant X-ray outburst, using the 1.2 m telescope at Mount Abu Infrared observatory and AstroSat, respectively. The peak
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c0d2b62ed0c40444a3e1c0995a9e9889
Autor:
Arghajit Jana, Sachindra Naik, Gaurava K Jaisawal, Birendra Chhotaray, Neeraj Kumari, Shivangi Gupta
Publikováno v:
Jana, A, Naik, S, Jaisawal, G K, Chhotaray, B, Kumari, N & Gupta, S 2022, ' AstroSat observation of X-ray dips and state transition in the black hole candidate MAXI J1803–298 ', Monthly Notices of the Royal Astronomical Society, vol. 511, no. 3, pp. 3922–3936 . https://doi.org/10.1093/mnras/stac315
We present the results obtained from broadband X-ray timing and spectral analysis of black hole candidate MAXI J1803-298 using an AstroSat observation on May 11-12, 2021. Four periodic absorption dips with a periodicity of $7.02 \pm 0.18$ hour are de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0c37cd57e2f356a691e0d57dc8247b0
https://orbit.dtu.dk/en/publications/ae09e377-e65b-40d4-af02-1b6fccb775c0
https://orbit.dtu.dk/en/publications/ae09e377-e65b-40d4-af02-1b6fccb775c0
Autor:
Neeraj Kumari, Gaurava K. Jaisawal, Sachindra Naik, Arghajit Jana, R. Remillard, Diego Altamirano, Birendra Chhotaray, Keith C. Gendreau
Publikováno v:
Jana, A, Jaisawal, G K, Naik, S, Kumari, N, Chhotaray, B, Altamirano, D, Remillard, R A & Gendreau, K C 2021, ' NICER observations of the black hole candidate MAXI J0637–430 during the 2019–2020 outburst ', Monthly Notices of the Royal Astronomical Society, vol. 504, no. 4, pp. 4793-4805 . https://doi.org/10.1093/mnras/stab1231
We present detailed timing and spectral studies of the black hole candidate MAXI J0637$-$430 during its 2019-2020 outburst using observations with the {\em Neutron Star Interior Composition Explorer (NICER)} and the {\em Neil Gehrels Swift Observator
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d0ec688440c7e75c030c052e079fc8f
https://orbit.dtu.dk/en/publications/a9a51587-84fe-4667-a143-24099c27085e
https://orbit.dtu.dk/en/publications/a9a51587-84fe-4667-a143-24099c27085e
Autor:
Prahlad Epili, Sachindra Naik, Gaurava K. Jaisawal, P. C. Agrawal, Arghajit Jana, Birendra Chhotaray
Publikováno v:
Jaisawal, G K, Naik, S, Epili, P R, Chhotaray, B, Jana, A & Agrawal, P C 2021, ' AstroSat observations of eclipsing high mass X-ray binary pulsar OAO 1657-415 ', Journal of Astrophysics and Astronomy, vol. 42, no. 2, 72 . https://doi.org/10.1007/s12036-021-09701-x
We present the results obtained from analysis of two AstroSat observations of the high mass X-ray binary pulsar OAO 1657-415. The observations covered 0.681-0.818 and 0.808-0.968 phases of the $\sim$10.4 day orbital period of the system, in March and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3fae5688a7852400419feeccc3f24c55
Autor:
Shivangi Gupta, Arghajit Jana, Prahlad Epili, Birendra Chhotaray, P. C. Agrawal, Sachindra Naik, Gaurava K. Jaisawal
Publikováno v:
Jaisawal, G K, Naik, S, Gupta, S, Agrawal, P C, Jana, A, Chhotaray, B & Epili, P R 2021, ' Detection of X-ray pulsations at the lowest observed luminosity of Be/X-ray binary pulsar EXO 2030+375 with AstroSat ', Journal of Astrophysics and Astronomy, vol. 42, no. 2, 33 . https://doi.org/10.1007/s12036-021-09699-2
We present the results obtained from timing and spectral studies of Be/X-ray binary pulsar EXO 2030+375 using observations with the Large Area Xenon Proportional Counters and Soft X-ray Telescope of AstroSat, at various phases of its Type-I outbursts
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72f73bd844c4924e338a53e720138a6f
http://arxiv.org/abs/2012.14113
http://arxiv.org/abs/2012.14113