Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Chhotaray, Birendra"'
We present the results obtained from X-ray and optical analysis of the Be/X-ray binary IGR~J06074+2205, focusing on before, during, and after the X-ray outbursts in October and December 2023. The properties of the neutron star in the binary are inves
Externí odkaz:
http://arxiv.org/abs/2410.00747
Publikováno v:
Bull. Soc. R. Sci. Liege, 2024, 93(2), 657-669
We present the findings from our study of the Be/X-ray binary 1A 0535+262/HD 245770 during the giant X-ray outburst in October 2020. We utilized the 1.2-m telescope at Mount Abu Infrared observatory for optical observations of the Be companion star.
Externí odkaz:
http://arxiv.org/abs/2407.14753
Autor:
Layek, Narendranath, Nandi, Prantik, Naik, Sachindra, Kumari, Neeraj, Jana, Arghajit, Chhotaray, Birendra
We present a long-term X-ray study of a nearby Active Galactic Nucleus Mrk 6, utilizing observations from XMM-Newton, Suzaku, Swift and NuSTAR observatories, spanning 22 years from 2001 to 2022. From timing analysis, we estimated variance, normalized
Externí odkaz:
http://arxiv.org/abs/2401.16780
Autor:
Chhotaray, Birendra, Jaisawal, Gaurava K., Nandi, Prantik, Naik, Sachindra, kumari, Neeraj, Ng, Mason, Gendreau, Keith C.
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:
http://arxiv.org/abs/2401.15058
Autor:
Chhotaray, Birendra, Jaisawal, Gaurava K., Kumari, Neeraj, Naik, Sachindra, Kumar, Vipin, Jana, Arghajit
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:
http://arxiv.org/abs/2211.09491
Autor:
Jana, Arghajit, Naik, Sachindra, Jaisawal, Gaurava K., Chhotaray, Birendra, Kumari, Neeraj, Gupta, Shivangi
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:
http://arxiv.org/abs/2202.00479
Autor:
Jana, Arghajit, Jaisawal, Gaurava K., Naik, Sachindra, Kumari, Neeraj, Chhotaray, Birendra, Altamirano, Diego, Remillard, Ronald A., Gendreau, Keith C.
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:
http://arxiv.org/abs/2104.13005
Autor:
Jaisawal, Gaurava K., Naik, Sachindra, Epili, Prahlad R., Chhotaray, Birendra, Jana, Arghajit, Agrawal, P. C.
Publikováno v:
J. Astrophys. Astr. (2021) 42:72
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:
http://arxiv.org/abs/2101.00815
Autor:
Jaisawal, Gaurava K., Naik, Sachindra, Gupta, Shivangi, Agrawal, P. C., Jana, Arghajit, Chhotaray, Birendra, Epili, Prahlad R.
Publikováno v:
J. Astrophys. Astr. (2021) 42:33
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:
http://arxiv.org/abs/2012.14113
Autor:
Chhotaray, Birendra, Jaisawal, Gaurava K, Kumari, Neeraj, Naik, Sachindra, Kumar, Vipin, Jana, Arghajit
Publikováno v:
Monthly Notices of the Royal Astronomical Society; Feb2023, Vol. 518 Issue 4, p5089-5105, 17p
