activity
20192025
most citedDisentangling the origin of chemical differences using GHOST

11 citations · 22 across the 5 of their papers we have counts for

collaborators

5 papers

astro-ph.SR2025★ 1 cited

Discovery of lambda Boo stars in open clusters

C. Saffe, J. Alacoria, A. Alejo +7

The origin of lambda Boo stars is currently unknown. After several efforts by many authors, no bona fide lambda Boo stars have been confirmed as members of open clusters. Their det…

astro-ph.EP2024★ 4 cited

TOI-3568 b: a super-Neptune in the sub-Jovian desert

E. Martioli, R. P. Petrucci, E. Jofre +42

The sub-Jovian desert is a region in the mass-period and radius-period parameter space, typically encompassing short-period ranges between super-Earths and hot Jupiters, that exhib…

astro-ph.SR2024★ 11 cited

Disentangling the origin of chemical differences using GHOST

C. Saffe, P. Miquelarena, J. Alacoria +8

Aims. We explore different scenarios to explain the chemical difference found in the remarkable giant-giant binary system HD 138202 + CD-30 12303. For the first time, we suggest ho…

astro-ph.SR2023

Elemental abundances differences in the massive planet-hosting wide binary HD 196067-68

M. Flores, J. Yana Galarza, P. Miquelarena +6

It has been suggested that small chemical anomalies observed in planet-hosting wide binary systems could be due to planet signatures, where the role of the planetary mass is still…

astro-ph.EP2019★ 6 cited

Gemini-GRACES high-quality spectra of Kepler evolved stars with transiting planets I. Detailed characterization of multi-planet systems Kepler-278 and Kepler-391

E. Jofré, J. M. Almenara, R. Petrucci +10

(abridged) Kepler-278 and Kepler-391 are two of the three evolved stars known to date on the RGB to host multiple short-period transiting planets. Moreover, these planets are among…