G. Clementini

TL;DR: In this paper, high dispersion spectra (R > 40 000) for a quite large number of stars at the main sequence turn-o and at the base of the giant branch of NGC 6397 and 6752 were obtained with the UVES on Kueyen (VLT UT2).

TL;DR: In this paper, a new temperature scale was determined from literature Infrared Flux Method measures of subdwarfs and the Kurucz (1992) model atmospheres, and used to calibrate colors for both dwarfs and RR Lyraes.

TL;DR: In this paper, the first parallax measurements of the primary standard candles of the cosmological distance ladder, that involve astrometry collected by Gaia during the initial 14 months of science operation, are published in Gaia Data Release 1 (DR1) as part of the Tycho-Gaia Astrometric Solution (TGAS).

TL;DR: In this article, a new temperature scale was determined from literature Infrared Flux Method measures of subdwarfs and the Kurucz (1992) model atmospheres, and used to calibrate colors for both dwarfs and RR Lyraes.

TL;DR: In this paper, Johnson et al. presented homogeneous photometric data (Johnson V, B-V, V-K, Cousins V-I and Stromgren b-y), radial velocities, and abundances of Fe, O, Mg, Si, Ca, Ti, Cr and Ni for 99 stars with high-precision parallaxes measured by the Hipparcos satellite.