86 citations · 945 across the 76 of their papers we have counts for
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Near-infrared observations of RR Lyrae and Type II Cepheid variables in the metal-rich bulge globular cluster NGC 6441
A. Bhardwaj, S. M. Kanbur, M. Rejkuba +4
NGC 6441 is a bulge globular cluster with an unusual horizontal branch morphology and a rich population of RR Lyrae (RRL) and Type II Cepheid (T2C) variables that is unexpected for…
Period-Colour and Amplitude-Colour relations for OGLE- Scuti stars in the Galactic Bulge and LMC
Mami Deka, Shashi M. Kanbur, Sukanta Deb +4
We present an analysis on the behaviour of the Galactic bulge and the Large Magellanic Cloud (LMC) Scuti stars in terms of period-colour and amplitude-colour (PCAC) relations a…
Zwicky Transient Facility and Globular Clusters: The Period-Luminosity and Period-Wesenheit Relations for Anomalous Cepheids Supplemented with Large Magellanic Cloud Sample
Chow-Choong Ngeow, Anupam Bhardwaj, Matthew J. Graham +3
We present the first gri-band period-luminosity (PL) and period-Wesenheit (PW) relations for the fundamental mode anomalous Cepheids. These PL and PW relations were derived from a…
Zwicky Transient Facility and Globular Clusters: Calibration of the gr-Band Absolute Magnitudes for the Yellow Post-Asymptotic-Giant-Branch Stars
Chow-Choong Ngeow, Anupam Bhardwaj, Daniel Reiley +3
We present the first absolute calibration for the yellow post-asymptotic-giant-branch (PAGB) stars in the g- and r-band based on time-series observations from the Zwicky Transient…
Zwicky Transient Facility and Globular Clusters: The Period-Luminosity and Period-Wesenheit Relations for Type II Cepheids
Chow-Choong Ngeow, Anupam Bhardwaj, Jing-Yi Henderson +5
We present the first gri-band period-luminosity (PL) and period-Wesenheit (PW) relations for 37 Type II Cepheids (hereafter TIIC) located in 18 globular clusters based on photometr…
Multi-wavelength observations by XSM, Hinode and SDO of an active region. Chemical abundances and temperatures
G. Del Zanna, B. Mondal, Y. K. Rao +7
We have reviewed the first year of observations of the Solar X-ray Monitor (XSM) onboard Chandrayaan-2, and the available multi-wavelength observations to complement the XSM data,…