activity
19942021
most citedTowards Better Age Estimates for Stellar Populations: The Y^2 Isochrones for Solar Mixture

855 citations · 5.5k across the 68 of their papers we have counts for

collaborators

68 papers

astro-ph.GA2021★ 18 cited

Evidence for strong progenitor age dependence of type Ia supernova luminosity standardization process

Young-Wook Lee, Chul Chung, Pierre Demarque +3

Supernova (SN) cosmology is based on the assumption that the width-luminosity relation (WLR) and the color-luminosity relation (CLR) in the type Ia SN luminosity standardization wo…

astro-ph.SR2021★ 13 cited

Stellar evolution models with entropy-calibrated mixing-length parameter: application to red giants

Federico Spada, Pierre Demarque, Friedrich Kupka

We present evolutionary models for solar-like stars with an improved treatment of convection that results in a more accurate estimate of the radius and effective temperature. This…

astro-ph.SR2019★ 10 cited

Testing the entropy calibration of the radii of cool stars: models of alpha Centauri A and B

F. Spada, P. Demarque

We present models of alpha Centauri A and B implementing an entropy calibration of the mixing-length parameter alpha_MLT, recently developed and successfully applied to the Sun (Sp…

astro-ph.SR2018★ 15 cited

Improved calibration of the radii of cool stars based on 3D simulations of convection: implications for the solar model

F. Spada, P. Demarque, S. Basu +1

Main sequence, solar-like stars (M < 1.5 Msun) have outer convective envelopes that are sufficiently thick to affect significantly their overall structure. The radii of these stars…

astro-ph.SR2017★ 273 cited

The Sirius System and its Astrophysical Puzzles: Hubble Space Telescope and Ground-Based Astrometry

Howard E. Bond, Gail H. Schaefer, Ronald L. Gilliland +11

Sirius, the seventh-nearest stellar system, is a visual binary containing the metallic-line A1 V star Sirius A, brightest star in the sky, orbited in a 50.13-year period by Sirius…

astro-ph.SR2017★ 127 cited

The Yale-Potsdam Stellar Isochrones (YaPSI)

F. Spada, P. Demarque, Y. -C. Kim +2

We introduce the Yale-Potsdam Stellar Isochrones (YaPSI), a new grid of stellar evolution tracks and isochrones of solar-scaled composition. In an effort to improve the Yonsei-Yale…