78 citations · 353 across the 11 of their papers we have counts for
11 papers
Wide-band view of High Frequency QPOs of GRS 1915+105 in 'softer' variability classes observed with AstroSat
Seshadri Majumder, H. Sreehari, Nafisa Aftab +3
We present a comprehensive temporal and spectral analysis of the 'softer' variability classes (, , , , , , and ) of the source GRS 1915+105 observed by…
A Machine Learning approach for classification of accretion states of Black hole binaries
H Sreehari, Anuj Nandi
In this paper, we employ Machine Learning algorithms on multi-mission observations for the classification of accretion states of outbursting Black hole X-ray binaries for the first…
AstroSat view of GRS 1915+105 during the Soft State: Detection of HFQPOs and estimation of Mass and Spin
Sreehari H., Anuj Nandi, Santabrata Das +4
We report the results of AstroSat observations of GRS 1915105 obtained using 100 ks guaranteed-time (GT) during the soft state. The Color-Color Diagram (CCD) indicates a variabi…
AstroSat view of MAXI J1535-571: broadband spectro-temporal features
Sreehari H., Ravishankar B. T., Nirmal Iyer +4
We present the results of Target of Opportunity (ToO) observations made with AstroSat of the newly discovered black hole binary MAXI J1535-571. We detect prominent C-type Quasi-per…
Study of the long-term evolution of the accretion dynamics of GX 339-4
U. Aneesha, S. Mandal, H. Sreehari
We study the dynamical behaviour of the galactic black hole source GX 339-4 during 2002-2011 outbursts using RXTE, Swift(XRT), XMM-Newton(PN) archival data. We present the spectral…
Constraining the mass of the black hole GX 339-4 using spectro-temporal analysis of multiple outbursts
Sreehari H., Nirmal Iyer, Radhika D. +2
We carried out spectro-temporal analysis of the archived data from multiple outbursts spanning over the last two decades from the black hole X-ray binary GX 339-4. In this paper, t…
Broad-band spectral evolution and temporal variability of IGR J17091-3624 during its 2016 outburst : SWIFT and NuSTAR results
Radhika D., H. Sreehari, A. Nandi +2
We report on the 2016 outburst of the transient Galactic Black Hole candidate IGR J17091-3624 based on the observation campaign carried out with SWIFT and NuSTAR. The outburst prof…
Accretion Flow Dynamics During 1999 Outburst of XTE J1859+226 - Modeling of Broadband Spectra and Constraining the Source Mass
A. Nandi, S. Mandal, H. Sreehari +6
We examine the dynamical behavior of accretion flow around XTE J1859+226 during the 1999 outburst by analyzing the entire outburst data ( 166 days) from RXTE Satellite. Towar…
Observational aspects of Outbursting Black Hole Sources - Evolution of Spectro-Temporal features and X-ray Variability
H. Sreehari, Anuj Nandi, D. Radhika +2
We report on our attempt to understand the outbursting profile of Galactic Black Hole (GBH) sources, keeping in mind the evolution of temporal and spectral features during the outb…
Advective accretion flow properties around rotating black holes - application to GRO J1655-40
Ramiz Aktar, Santabrata Das, Anuj Nandi +1
We examine the properties of the viscous dissipative accretion flow around rotating black holes in presence of mass loss. Considering thin disc approximation, we self-consistently…
Estimation of mass outflow rates from dissipative accretion disc around rotating black holes
Ramiz Aktar, Santabrata Das, Anuj Nandi +1
We study the properties of the dissipative accretion flow around rotating black holes in presence of mass loss. We obtain the complete set of global inflow-outflow solutions in the…