Author

Author

Sort by: Order: Results:

  • Jana, Arghajit; Jaisawal, Gaurava K.; Naik, Sachindra; Kumari, Neeraj; Chatterjee, Debjit; Chatterjee, Kaushik; Bhowmick, Riya; Chakrabarti, Sandip K.; Chang, Hsiang-Kuang; Debnath, Dipak (IOP Publishing, 2021-06)
    We present the results obtained from detailed timing and spectral studies of a black hole candidate MAXI J1813-095 using Swift, NICER, and NuSTAR observations during its 2018 outburst. The timing behavior of the source is ...
  • Jana, Arghajit; Naik, Sachindra; Jaisawal, Gaurava K.; Chhotaray, Birendra; Kumari, Neeraj; Gupta, Shivangi (Oxford University Press, 2022-04)
    We present the results obtained from broad-band X-ray timing and spectral analysis of black hole (BH) candidate MAXI J1803–298 using an AstroSat observation on 2021 May 11-12. Four periodic absorption dips with a periodicity ...
  • Jaisawal, Gaurava K.; Naik, Sachindra; Epili, Prahlad R.; Chhotaray, Birendra; Jana, Arghajit; Agrawal, P. C (Scientific Research Publishing, 02-10-21)
    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 ∼10.4 day orbital period of ...
  • Jana, Arghajit; Kumari, Neeraj; Nandi, Prantik; Naik, Sachindra; Chatterjeee, Arka; Jaisawal, Gaurava K.; Hayasaki, Kimitake; Ricci, Claudio (Oxford University Press, 2021-08)
    We study the nature of the changing-look active galactic nucleus NGC 1566 during its 2018 June outburst. During the outburst, the X-ray intensity of the source rises up to ?25-30 times compared to its quiescent state ...
  • Kumari, Neeraj; Pal, Main; Naik, Sachindra; Jana, Arghajit; Jaisawal, Gaurava K.; Kushwaha, Pankaj (Cambridge University Press, 2021-09)
    We performed a detailed spectral and timing analysis of a Seyfert 1 galaxy Mrk 509 using data from the Neil Gehrels Swift observatory that spanned over 13 years between 2006 and 2019. To study the variability properties ...
  • Jaisawal, Gaurava K.; Naik, Sachindra; Gupta, Shivangi; Agrawal, P. C., Jana, Arghajit; Chhotaray, Birendra; Epili, Prahlad R. (Springer Nature, 2021-10)
    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 ...
  • Gupta, Shivangi; Naik, Sachindra; Jaisawal, Gaurava K. (Oxford University Press, 2020-02)
    This is an erratum to the paper ‘NuSTAR view of Be/X-ray binary pulsar 2S 1417–624 during 2018 giant outburst’ (2019, MNRAS, 490, 2458–2466). In the original version of this article an affiliation of Shivangi Gupta was ...
  • Jana, Arghajit; Jaisawal, Gaurava K.; Naik, Sachindra; Kumari, Neeraj; Chhotaray, Birendra; Altamirano, D.; Remillard, R. A.; Gendreau, Keith C. (Royal Astronomical Society, 2021-07)
    We present detailed timing and spectral studies of the black hole candidate MAXI J0637–430 during its 2019–2020 outburst using observations with the Neutron Star Interior Composition Explorer (NICER) and the Neil Gehrels ...
  • Gupta, Shivangi; Naik, Sachindra; Jaisawal, Gaurava K. (Oxford University Press, 2019-12)
    We report the results obtained from a detailed timing and spectral studies of Be/X-ray binary pulsar 2S 1417?624 using data from Swift and NuSTAR observatories. The observations were carried out at the peak of a giant ...
  • Jaisawal, Gaurava K.; Naik, Sachindra; Ho, Wynn C. G.; Kumari, Neeraj; Epili, Prahlad; Vasilopoulos, Georgios (Royal Astronomical Society, 2020-09)
    We present the results obtained from the analysis of high-mass X-ray binary pulsar 4U 1909+07 using NuSTAR and Astrosat observations in July 2015 and 2017, respectively. X-ray pulsations at ≈604 s are clearly detected in ...

Search Digital Repository


Browse

My Account