L. Fossati

Publications358
h-index36
Citations4,858
Highly Influential Citations298
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Distance Scale Zero Points From Galactic RR Lyrae Star Parallaxes
We present new absolute trigonometric parallaxes and proper motions for seven Population II variable stars—five RR Lyr variables: RZ Cep, XZ Cyg, SU Dra, RR Lyr, and UV Oct; and two type 2 Cepheids:… Expand
The effect of rotation on the abundances of the chemical elements of the A-type stars in the Praesepe cluster ?
Aims. We study how chemical abundances of late B‐, A‐ and early F‐type stars evolve with time, and we search for correlations between the abundance of chemical elements and other stellar parameters,… Expand
An excess of massive stars in the local 30 Doradus starburst
  • F. R. N. Schneider, H. Sana, +29 authors C. Norman
  • Physics, Medicine
  • Science
  • 5 January 2018
TLDR
The recent formation history and the initial mass function (IMF) of massive stars in 30 Doradus is determined on the basis of spectroscopic observations of 247 stars more massive than 15 solar masses, and the main episode of massive star formation began about 8 million years ago and seems to have declined in the last 1 My. Expand
METALS IN THE EXOSPHERE OF THE HIGHLY IRRADIATED PLANET WASP-12b*
TLDR
The results are strong evidence for an extended absorbing exosphere surrounding the planet, and the NUVA data exhibit an early ingress, contrary to model expectations; it is speculated this could be due to the presence of a disk of previously stripped material. Expand
A Detailed Spectropolarimetric Analysis of the Planet-hosting Star WASP-12
The knowledge of accurate stellar parameters is paramount in several fields of stellar astrophysics, particularly in the study of extrasolar planets, where often the star is the only visible… Expand
Near-ultraviolet Absorption, Chromospheric Activity, and Star-Planet Interactions in the WASP-12 system
Extended gas clouds have been previously detected surrounding the brightest known close-in transiting hot Jupiter exoplanets, HD 209458 b and HD 189733 b; we observed the distant but more extreme… Expand
Confronting uncertainties in stellar physics: calibrating convective overshooting with eclipsing binaries
As part of a larger program aimed at better quantifying the uncertainties in stellar computations, we attempt to calibrate the extent of convective overshooting in low to intermediate mass stars by… Expand
WTS-2 b: a hot Jupiter orbiting near its tidal destruction radius around a K dwarf
We report the discovery of WTS-2 b, an unusually close-in 1.02-d hot Jupiter (M-P = 1.12M(J), R-P = 1.30R(J)) orbiting a K2V star, which has a possible gravitationally bound M-dwarf companion at 0.6… Expand
Chemical composition of A and F dwarfs members of the Hyades open cluster
Abundances of 15 chemical elements have been derived for 28 F and 16 A stars members of the Hyades open cluster in order to set constraints on self-consistent evolutionary models including radiative… Expand
An in-depth spectroscopic analysis of the Blazhko star RR Lyrae - I. Characterisation of the star: abundance analysis and fundamental parameters
Aims. The knowledge of accurate stellar parameters is a keystone in several fields of stellar astrophysics, such as asteroseismology and stellar evolution. Although the fundamental parameters can be… Expand
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