Abstract Details

Name: Soma Mandal
Affiliation: Government Girls' General Degree College, Kolkata
Conference ID: ASI2020_252
Title : The energy dependent r.m.s variability in 4U1608-52
Authors and Co-Authors : Soma Mandal
Abstract Type : Poster
Abstract Category : Extragalactic Astronomy
Abstract : Use of r.m.s spectra in different frequency bands is one solution to the problem of disentangling different dynamical processes and radiative emission mechanisms in neutron star X-ray binaries. The neutron star low mass X-ray binary 4U 1608-52 is known to show kHz QPOs as well as low frequency broad band noise. Here in this work, we have carried out a systematic study of the energy dependence of the r.m.s amplitude of kHz QPOs and low frequency broadband noise observed in the X-ray emission of the neutron star LMXB 4U 1608-52 , using archival data obtained with the Rossi X-ray Timing Explorer (RXTE). We have investigated the relationship between the energy dependence of the r.m.s variability of both kHz QPOs and low frequency broadband noise. We discussed whether this relationship displays features that could have a physical meaning in terms of the proposed QPO models.