We have derived accurate distances to Galactic globular clusters by combining data from the
Gaia Early Data Release 3 (EDR3) with distances based on Hubble Space Telescope (HST) …

One of the most exciting and pressing issues in cosmology today is the discrepancy
between some measurements of the local Hubble constant and other values of the …

Old-aged stellar distance indicators are present in all Galactic structures (halo, bulge, disk)
and in galaxies of all Hubble types and, thus, are immensely powerful tools for …

We use data from the ESA Gaia mission Early Data Release 3 (EDR3) to measure the
trigonometric parallax of ω Cen, the first high-precision parallax measurement for the most …

Abstract Classical Cepheid and RR Lyrae variables are radially pulsating stars that trace
young and old-age stellar populations, respectively. These classical pulsating stars are the …

Ages have been derived for 55 globular clusters (GCs) for which Hubble Space Telescope
Advanced Camera for Surveys photometry is publicly available. For most of them, the …

We present a mass–luminosity relation (MLR) for red dwarfs spanning a range of masses
from 0.62${{\mathcal M}} _ {\odot} $ to the end of the stellar main sequence at …

Machine-learned Identification of RR Lyrae Stars from Sparse, Multi-band Data: The PS1
Sample - IOPscience This site uses cookies. By continuing to use this site you agree to our use …

We present analysis of 12,227 type-ab RR Lyraes (RRLs) found among the 200 million
public light curves in Catalina Surveys Data Release 1. These stars span the largest volume …

We present results from the analysis of 401 RR Lyrae stars (RRLs) belonging to the field of
the Milky Way (MW). For a fraction of them multiband (V, K s, W 1) photometry, metal …