Large Area X-ray Proportional Counter (LAXPC) in orbit performance: Calibration, background, analysis software

HM Antia, PC Agrawal, D Dedhia, T Katoch… - Journal of Astrophysics …, 2021 - Springer
Abstract The Large Area X-ray Proportional Counter (LAXPC) instrument on-board AstroSat
has three nominally identical detectors for timing and spectral studies in the energy range of …

Calibration of the large area X-ray proportional counter (LAXPC) instrument on board AstroSat

HM Antia, JS Yadav, PC Agrawal… - The Astrophysical …, 2017 - iopscience.iop.org
We present the calibration and background model for the Large Area X-ray Proportional
Counter (LAXPC) detectors on board AstroSat. The LAXPC instrument has three nominally …

Study of recent outburst in the Be/X-ray binary RX J0209.6−7427 with AstroSat: a new ultraluminous X-ray pulsar in the Magellanic Bridge?

AD Chandra, J Roy, PC Agrawal… - Monthly Notices of the …, 2020 - academic.oup.com
We present the timing and spectral studies of RX J0209. 6–7427 during its rare 2019
outburst using observations with the Soft X-ray Telescope (SXT) and Large Area X-ray …

Wideband study of the brightest black hole X-ray binary 4U 1543− 47 in the 2021 outburst: signature of disc-wind regulated accretion

G Prabhakar, S Mandal, GR Bhuvana… - Monthly Notices of the …, 2023 - academic.oup.com
ABSTRACT A comprehensive wideband spectral analysis of the brightest black hole X-ray
binary 4U 1543− 47 during its 2021 outburst is carried out for the first time using NICER …

Detection of nearly periodic spin period reversals in Vela X-1 on long time-scales: inkling of solar-like cycle in the donor star?

AD Chandra, J Roy, PC Agrawal… - Monthly Notices of the …, 2021 - academic.oup.com
We explore the long-term evolution of the spin period of the high-mass X-ray binary pulsar
Vela X-1 over a period of 46 yr. Our analysis indicates nearly periodic variations in the spin …

AstroSat and MAXI view of the black hole binary 4U 1630−472 during 2016 and 2018 outbursts

BE Baby, VK Agrawal, MC Ramadevi… - Monthly Notices of …, 2020 - academic.oup.com
We present an in-depth spectral and timing analysis of the black hole binary 4U 1630− 472
during 2016 and 2018 outbursts as observed by AstroSat and MAXI. The extensive …

Discovery of evolving low-frequency QPOs in hard X-rays (∼100 keV) observed in black hole Swift J1727.8−1613 with AstroSat

A Nandi, S Das, S Majumder, T Katoch… - Monthly Notices of …, 2024 - academic.oup.com
We report the first detection of evolving Low-Frequency Quasi-periodic Oscillation (LFQPO)
frequencies in hard X-rays upto 100 keV with AstroSat/LAXPC during 'unusual'outburst …

Wide-band view of high-frequency quasi-periodic oscillations of GRS 1915+105 in 'softer' variability classes observed with AstroSat

S Majumder, H Sreehari, N Aftab… - Monthly Notices of …, 2022 - academic.oup.com
We present a comprehensive temporal and spectral analysis of the 'softer'variability classes
(ie θ, β, δ, ρ, κ, ω and γ) of the source GRS 1915+ 105 observed by AstroSat during the …

Broad-band mHz QPOs and spectral study of LMC X-4 with AstroSat

R Sharma, C Jain, K Rikame… - Monthly Notices of the …, 2023 - academic.oup.com
We report the results of broad-band timing and spectral analysis of data from an AstroSat
observation of the high-mass X-ray binary LMC X-4. The Large Area X-ray Proportional …

AstroSat observation of X-ray dips and state transition in the black hole candidate MAXI J1803–298

A Jana, S Naik, GK Jaisawal… - Monthly Notices of …, 2022 - academic.oup.com
We present the results obtained from broad-band X-ray timing and spectral analysis of black
hole (BH) candidate MAXI J1803–298 using an AstroSat observation on 2021 May 11–12 …