7 citations · 23 across the 10 of their papers we have counts for
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Propagating Oscillatory Shock Model for QPOS in GRO J1655-40 During the March 2005 Outburst
Sandip K. Chakrabarti, A. Nandi, D. Debnath +2
GRO 1655-40, a well known black hole candidate, showed renewed X-ray activity in March 2005 after being dormant for almost eight years. It showed very prominent quasi-periodic osci…
Numerical Simulations Reveal the Origin of QPOs in Black Hole Candidates
Sandip K. Chakrabarti
We present results of various types of numerical simulations of black hole accretion disks and find that those flows which are relatively non-dissipative and which contain accretio…
Class Transitions in Black Holes
Sandip K. Chakrabarti
A black hole spectrum is known to change from the hard state to the soft state when the energy spectral index () in, say, 2-20 keV range changes from $α\sim…
A GHz Flare in a Quiescent Black Hole and A Determination of the Mass Accretion Rate
S. Pal, Sandip K. Chakrabarti
If the total energy of a radio flare is known, one can estimate the mass accretion rate of the disk by assuming equipartition of magnetic energy and the gravitational potential ene…
Monitoring of Sudden Ionospheric Disturbances (SID) from Kolkata (INDIA)
Sandip K. Chakrabarti, K. Acharyya, B. Bose +5
We report our first results of monitoring sudden ionospheric disturbances (SID). We present data taken continuously for two weeks during 20th Sept. 2002 and 4th Oct. 2002. We compa…
VLF observation during Leonid Meteor Shower-2002 from Kolkata
Sandip K. Chakrabarti, S. Pal, K. Acharyya +4
Using a Gyrator-II Loop antenna tuned at 19.0Khz, we monitored the meteor shower during 17-24th November, 2002. We observe the primary peak at 3h58m (UT) on the 19th of November, 2…