177 citations
- S.N. Bose National Centre for Basic SciencesIN143 papers
- Physical Research LaboratoryIN24 papers
- Indian Institute of AstrophysicsIN18 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di TriesteIT17 papers
- Centre National de la Recherche ScientifiqueFR16 papers
- Tata Institute of Fundamental ResearchIN15 papers
- Indian Space Research OrganisationIN14 papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT14 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BariIT14 papers
- National Research Nuclear University MEPhIRU13 papers
- University of TriesteIT13 papers
- Laboratoire d'Astrophysique de BordeauxFR11 papers
14 papers · 2 filters
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…
Photometric Evidence of Bullets in SS433 Jet
Sandip K. Chakrabarti, A. Nandi, S. Pal +2
We report the photometric evidence of bullet like features in SS433 in X-rays, Infra-red and Radio bands through a multi-wavelength campaign.
QPOs from Radial and Vertical Oscillation of Shocks in Advective Accretion Flows
Sandip K. Chakrabarti, K. Acharyya, D. Molteni
We present results of several numerical simulations of two dimensional advective flows which include cooling processes. We show that the computed light curve is similar to the …
Spectral Properties of a Two Component and Two Temperature Advective Flow
Samir Mandal, Sandip K. Chakrabarti
Low angular momentum accretion flows very often have centrifugal pressure supported standing shock waves which can accelerate flow particles. The accelerated particles in turn emit…
Mass accretion rate of the galactic black hole A0620-00 in its quiescent state
Sabyasachi Pal, Sandip K. Chakrabarti
Our recent radio observation using the Giant Meter Radio Telescope (GMRT) of the galactic black hole transient A0620-00 at 1.280GHz revealed a micro-flare of a few milli-Jansky. As…