69 citations · 265 across the 19 of their papers we have counts for
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A multi-wavelength analysis of BL Her stars: Models versus Observations
S. Das, L. Molnár, S. M. Kanbur +6
We present new theoretical period--luminosity (PL) and period--radius (PR) relations at multiple wavelengths (Johnson--Cousins--Glass and {\sl Gaia} passbands) for a fine grid of B…
Predicting light curves of RR Lyrae variables using artificial neural network based interpolation of a grid of pulsation models
Nitesh Kumar, Anupam Bhardwaj, Harinder P. Singh +4
We present a new technique to generate the light curves of RRab stars in different photometric bands ( and bands) using Artificial Neural Networks (ANN). A pre-computed grid…
Precise Empirical Determination of Metallicity Dependence of Near-infrared Period-Luminosity Relations for RR Lyrae Variables
Anupam Bhardwaj, Marcella Marconi, Marina Rejkuba +9
RR Lyrae variables are excellent population II distance indicators thanks to their well-defined period-luminosity relations (PLRs) at infrared wavelengths. We present results of ne…
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…
Optical characterization of two cataclysmic variables: RBS 0490 and SDSS J075939.79+191417.3
Arti Joshi, J. C. Pandey, Nikita Rawat +3
We present optical photometric and spectroscopic observations of two Cataclysmic Variables (CVs), namely RBS 0490 and SDSS J075939.79+191417.3. The optical variations of RBS 0490 h…
First detection of a magnetic field in low-luminosity B[e] stars: New scenarios for the nature and evolutionary stages of FS CMa stars
D. Korcakova, F. Sestito, N. Manset +8
We report the first detection of the magnetic field in a star of FS CMa type, a subgroup of objects characterized by the B[e] phenomenon. The split of magnetically sensitive lines…