Possible ASTROSAT observation of transient black hole candidates to study spectral and timing properties with TCAF solution

Dipak Debnath, Sandip K. Chakrabarti, Santanu Mondal, Arghajit Jana, Aslam Ali Molla, Debjit Chatterjee

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

ASTROSAT is India's first multi-wavelength astronomy satellite, was successfully launched on 2015 September 28 by PSLV in a ∼ 650 km near-equatorial orbit. It can be used to study astronomical objects in a wide range of electromagnetic energy band from UV to hard X-rays. With a very high spectral, timing as well as spacial resolutions from different scientific instruments of the satellite, one can make a detailed spectral and timing study of transient black hole candidates (BHCs) during their outbursts. Recently, we have included Chakrabarti-Titarchuk (1995) Two-Component Advective Flow (TCAF) model in HEASARC's spectral analysis package XSPEC as a local additive table model to fit black hole with the model, and we found that it is quite capable of explaining both the spectral and temporal properties of BHCs very successfully. Multi-wavelength data of ASTROSAT is expected to provide some useful data to understand spectral as well as temporal variability of transient BHCs using TCAF solution. Here, we discuss various aspects of TCAF which can be verified from ASTROSAT data.

Original languageEnglish
Title of host publication14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories, Proceedings
EditorsMassimo Bianchi, Robert T Jantzen, Remo Ruffini, Remo Ruffini
PublisherWorld Scientific Publishing Co. Pte Ltd
Pages3283-3288
Number of pages6
ISBN (Electronic)9789813226593
DOIs
StatePublished - 1 Jan 2018
Externally publishedYes
Event14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories - Rome, Italy
Duration: 12 Jul 201518 Jul 2015

Publication series

Name14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories, Proceedings

Conference

Conference14th Marcel Grossman Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories
Country/TerritoryItaly
CityRome
Period12/07/1518/07/15

Keywords

  • Accretion
  • Accretion disks
  • Radiation:dynamics
  • Shock waves
  • Stars individual: (GRO J1655-40, GX 339-4, H 1743-322, MAXI J1659-152, MAXI J1836-194)
  • Stars:black holes
  • X-Rays:binaries

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Astronomy and Astrophysics

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