IIA Institutional Repository

Browsing IIAP Publications by Subject "X-Rays: Stars"

Browsing IIAP Publications by Subject "X-Rays: Stars"

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  • Detection of optical pulsations from RX J0558.0+5353 
    Ashoka, B. N; Marar, T. M. K; Seetha, S; Kasturirangan, K; Bhattacharyya, J. C (The European Southern Observatory, 1995-05)
    We report the detection of optical pulsations at a period of 272.785+-0.003s from the newly discovered intermediate polar RX J0558.0+5353. This period nearly coincides with the X-ray period reported by Haberl et al. (1994). ...
  • Limits to the Mass and the Radius of the Compact Star in SAX J1808.4-3658 and Their Implications 
    Bhattacharyya, S (American Astronomical Society, 2001-06)
    We show that a survey of equations of state and observations of X-ray pulsations from SAX J1808.4-3658 give 2.27 Msolar as the upper limit of the compact star mass. The corresponding upper limit of the radius comes out to ...
  • SS 433: results of a recent multiwavelength campaign 
    Chakrabarti, S. K; Anandarao, B. G; Pal, S; Mondal, S; Nandi, A; Bhattacharyya, A; Mandal, S; Sagar, R; Pandey, J. C; Pati, A. K; Saha, S. K (Royal Astronomical Society, 2005-09)
    We conducted a multiwavelength campaign in 2002 September-October, to observe SS 433. We used the Giant Meter Radio Telescope for radio observations, the Physical Research Laboratory Infrared Telescope at Mt Abu for infrared ...
  • Temperature Profiles of Accretion Disks around Rapidly Rotating Neutron Stars in General Relativity and the Implications for Cygnus X-2 
    Bhattacharyya, S; Thampan, A. V; Misra, R; Datta, B (The American Astronomical Society, 2000-10)
    We calculate the temperature profiles of (thin) accretion disks around rapidly rotating neutron stars (with low surface magnetic fields), taking into account the full effects of general relativity. We then consider a model ...

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