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Large Magellanic Cloud Globular Clusters in the Near-infrared. I. RR Lyrae in Reticulum
Anupam Bhardwaj, Susmita Das, Prashant Nishad +10
Reticulum is an old, metal-poor, and sparsely populated globular cluster in the outer regions of the Large Magellanic Cloud (LMC) and hosts a rich population of RR Lyrae stars. Bei…
A Pilot Study to Verify the RR Lyrae Candidates with Vera C. Rubin Observatory Early Alerts
Chow-Choong Ngeow, Anupam Bhardwaj, Sarang Shah +2
We present a pilot study using the Vera C. Rubin Observatory early alerts to verify RR Lyrae candidates in the Pan-STARRS1, the Dark Energy Survey, and the Next-Generation Virgo Cl…
Exploring RR Lyrae Variable Stars in the Vera C. Rubin Observatory Data Preview 1
Chow-Choong Ngeow, Anupam Bhardwaj
We investigate the properties of known RR Lyrae in the Vera C. Rubin Observatory Data Preview 1 (DP1) fields and compare those with the predictions based on stellar pulsation model…
Stellar Variability and Distance Indicators in the Near-infrared in Nearby Galaxies. II. Pulsating Stars in the Carina Dwarf Spheroidal
Chow-Choong Ngeow, Anupam Bhardwaj, Prashant Nishad +1
We present homogeneous, near-infrared ( bands) time-series observations of the classical Carina dwarf Spheroidal (dSph) galaxy to determine accurate and precise distances us…
The Lack of RR Lyrae Variables in Ultrafaint Dwarf Galaxy Sextans II
Chow-Choong Ngeow, Anupam Bhardwaj
RR Lyrae in ultrafaint dwarf (UFD) galaxies, if found, would be valuable to constrain the distances of these UFD. In this work, we report our search of RR Lyrae in a recently disco…
Adding RR Lyrae -Band Template Light Curves to gatspy
Chow-Choong Ngeow, Chia-Yu Cheng
We complement the -band template light curves for RR Lyrae to the well-established template light curves in the -band, where the latter have been adopted in the astroML/g…