Abstract Details
| Name: Nilam Raghunath Navale Affiliation: Dayanand Science College, Latur, Maharashtra Conference ID: ASI2017_1207 Title : Long Term X-ray Variability Characteristics of Black Hole Binary GRS 1915+105 Authors and Co-Authors : Nilam R. Navale1, Anjali Rao2, A. R. Rao3, Yash Bhargava2, M. B. Pandge1 1Dayanand Science College, Barshi Road, Latur, Maharashtra 413512, India 2Inter-University Centre for Astronomy and Astrophysics, Post Bag 4, Ganeshkhind, Pune 411007, India 3Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400 005, India Abstract Type : Poster Abstract Category : Stars,ISM and the Galaxy Abstract : The enigmatic Galactic black hole binary GRS 1915+105 shows a bewildering variety of variability classes and occasionally it exhibits powerful jets moving at superluminal speeds. The relationship between the occurrence of variability classes with the jet emission and the high frequency quasi periodic oscillations (HFQPO) is poorly understood due to the lack of continuous pointed observations. We make use of the data from all sky monitors (RXTE/ASM, SWIFT/BAT and MAXI) to predict the variability class of GRS 1915+105 and test them with the help of existing pointed observations of RXTE/PCA. We assign variability classes to all PCA observations spanning 16 years using standard one light curves and color-color diagrams generated with standard two light curves. We study the distribution of variability classes in different bins of count rates in different energy bands of the detectors. We find that some of the count rate bins for a certain energy band includes only few of the variability classes excluding others. Such count rate bins for a given energy range can be used to predict the variability class. The detailed results of the study and the probability distribution of variability classes and their relation to superluminal jet emissions and HFQPO emission will be discussed in the paper. This can be used to predict and plan detailed pointed observations using the AstroSat satellite to make an in depth study of the disk-jet connection in this exciting black hole source. |