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Browsing by Author "Katoch, Tilak"

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Accretion flow properties of GRS 1915+105 during Its θ class using AstroSat data

Banerjee, Anuvab; Bhattacharjee, Ayan; Chatterjee, Debjit; Debnath, Dipak; Chakrabarti, S. K; Katoch, Tilak; Antia, H. M (IOP Publishing, 2021-08-01)

The Galactic microquasar GRS 1915+105 shows rich variability that is categorized into different classes. In this paper, we report the temporal and spectral analysis of GRS 1915+105 to study the properties of the accretion ...
AstroSat view of GRS 1915+105 during the soft state: detection of HFQPOs and estimation of mass and spin

Sreehari, H; Nandi, Anuj; Das, Santabrata; Agrawal, V. K; Mandal, Samir; Ramadevi, M. C; Katoch, Tilak (Oxford University Press on behalf of the Royal Astronomical Society, 2020-12)

We report the results of AstroSat observations of GRS 1915+105 obtained using 100 ks Guaranteed Time during the soft state. The colour–colour diagram indicates a variability class of δ with the detection of high-frequency ...
Wide-band view of high-frequency quasi-periodic oscillations of GRS 1915+105 in ‘softer’ variability classes observed with AstroSat

Majumder, Seshadri; Sreehari, H; Aftab, Nafisa; Katoch, Tilak; Das, Santabrata; Nandi, Anuj (Oxford University Press on behalf of Royal Astronomical Society, 2022-05)

We present a comprehensive temporal and spectral analysis of the ‘softer’ variability classes (i.e. θ, β, δ, ρ, κ, ω and γ ) of the source GRS 1915+105 observed by AstroSat during the 2016−2021 campaign. Wide-band (3−60 ...

Browsing by Author "Katoch, Tilak"

Browsing by Author "Katoch, Tilak"

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