Abstract Details
| Name: KABITA DEKA Affiliation: Tezpur University, Sonitpur Conference ID: ASI2019_434 Title : The Flux distribution study of Cygnus X-1 to understand its long term temporal behaviour Authors and Co-Authors : Ms.KABITA DEKA, Prof. RANJEEV MISRA & Dr.GAZI AMEEN AHMED Abstract Type : Poster Abstract Category : Stars, ISM and Galaxy Abstract : Cygnus X-1 is one of the brightest x-ray sources. It’s consist of a blue supergiant star and a black hole that orbit around each other. The source shows variability on different time-scales ranging from seconds to months. The variability could be due to variation in the mass accretion rate which may be due to a multiplicative process or due to an additive one. If it is additive the flux distribution would be a Gaussian while if it is multiplicative it would be a lognormal one. We will study and report on the flux distribution of Cygnus X-1 using the RXTE/ASM (Rossi X-Ray Timing Explorer/ All Sky Monitor) and MAXI data in order to understand the distributions. Cygnus X-1 is known to have two spectral states and we will study whether the distributions are the same or different in the two states. Moreover, we will also report on the flux distribution as a function of the energy of the photon. |