Photometric metallicity of Galactic RR Lyrae stars in the Gaia DR3 era

Mahiguhappriya Prakash, Susmita Das, Harinder P. Singh +1

We present a new, calibrated $G$-band relationship between pulsation period $P$, Fourier parameter $\ddot{I}{•}_{31}$, and metallicity [Fe/H] for galactic RR Lyrae stars from the Gaia surve…