activity
20012023
most citedSpectroscopic [Fe/H] for 98 extra-solar planet-host stars: Exploring the probability of planet formation

960 citations · 4.4k across the 30 of their papers we have counts for

collaborators

30 papers

astro-ph.EP2023★ 2 cited

New Mass and Radius Constraints on the LHS 1140 Planets -- LHS 1140 b is Either a Temperate Mini-Neptune or a Water World

Charles Cadieux, Mykhaylo Plotnykov, René Doyon +43

The two-planet transiting system LHS 1140 has been extensively observed since its discovery in 2017, notably with , HST, TESS, and ESPRESSO, placing strong constraints on…

astro-ph.EP2018★ 19 cited

Chemical abundances of neutron capture elements in exoplanet-hosting stars

E. Delgado Mena, V. Zh. Adibekyan, P. Figueira +7

To understand the formation and composition of planetary systems it is important to study their host stars composition since both are formed in the same stellar nebula. In this wor…

astro-ph.SR2017★ 2 cited

Abundance ratios \& ages of stellar populations in HARPS-GTO sample

E. Delgado Mena, M. Tsantaki, V. Zh. Adibekyan +4

In this work we present chemical abundances of heavy elements (Z28) for a homogeneous sample of 1059 stars from HARPS planet search program. We also derive ages using parallaxes…

astro-ph.SR2017★ 41 cited

SWEET-Cat update and FASMA. A new minimization procedure for stellar parameters using high-quality spectra

D. T. Andreasen, S. G. Sousa, M. Tsantaki +6

Context: Thanks to the importance that the star-planet relation has to our understanding of the planet formation process, the precise determination of stellar parameters for the ev…

astro-ph.SR2016★ 51 cited

CNO behaviour in planet-harbouring stars. II. Carbon abundances in stars with and without planets using the CH band

L. Suárez-Andrés, G. Israelian, J. I. González Hernández +4

Context. Carbon, oxygen and nitrogen (CNO) are key elements in stellar formation and evolution, and their abundances should also have a significant impact on planetary formation an…

astro-ph.SR2016★ 34 cited

Abundance trend with condensation temperature for stars with different Galactic birth places

V. Adibekyan, E. Delgado-Mena, P. Figueira +9

During the past decade, several studies reported a correlation between chemical abundances of stars and condensation temperature (also known as Tc trend). However, the real astroph…