no code implementations • 25 Dec 2020 • Anupam Bhardwaj, Marina Rejkuba, Richard de Grijs, Soung-Chul Yang, Gregory J. Herczeg, Marcella Marconi, Harinder P. Singh, Shashi Kanbur, Chow-Choong Ngeow
Multi-epoch $JHK_s$ observations, obtained with the WIRCam instrument on the 3. 6-m Canada France Hawaii Telescope, are used for the first time to estimate precise mean-magnitudes for 63 RR Lyrae stars in M53 including 29 fundamental-mode (RRab) and 34 first-overtone modes (RRc) variables.
Solar and Stellar Astrophysics Astrophysics of Galaxies
no code implementations • 25 Nov 2019 • Earl P. Bellinger, Shashi M. Kanbur, Anupam Bhardwaj, Marcella Marconi
We quantify which aspects of light curve structure are most important in determining fundamental parameters, and find for example that the second Fourier amplitude component of RR Lyrae light curves is even more important than period in determining the effective temperature of the star.