220 citations · 579 across the 11 of their papers we have counts for
11 papers
Signatures of planets and Galactic subpopulations in solar analogs. Precise chemical abundances with neural networks
Giulia Martos, Jorge Meléndez, Lorenzo Spina +1
The aim of this work is to obtain precise atmospheric parameters and chemical abundances automatically for solar twins and analogs to find signatures of exoplanets, as well as to a…
Carbon, isotopic ratio C/C and nitrogen in solar twins: constraints for the chemical evolution of the local disc
Rafael Botelho, Andre Milone, Jorge Melendez +3
Abundances of light elements in dwarf stars of different ages are important constraints for stellar yields, Galactic chemical evolution and exoplanet chemical composition studies.…
Detailed chemical compositions of planet hosting stars: I. Exploration of possible planet signatures
F. Liu, D. Yong, M. Asplund +5
We present a line-by-line differential analysis of a sample of 16 planet hosting stars and 68 comparison stars using high resolution, high signal-to-noise ratio spectra gathered us…
The chemical composition of HIP34407/HIP34426 and other twin-star comoving pairs
I. Ramirez, S. Khanal, S. J. Lichon +4
We conducted a high-precision elemental abundance analysis of the twin-star comoving pair HIP34407/HIP34426. With mean error of 0.013 dex in the differential abundances (D[X/H]), a…
Chemical (in)homogeneity and atomic diffusion in the open cluster M67
F. Liu, M. Asplund, D. Yong +4
Context. The benchmark open cluster M67 is known to have solar metallicity and similar age as the Sun. It thus provides us a great opportunity to study the properties of solar twin…
Thorium in solar twins: implications for habitability in rocky planets
Rafael B. Botelho, Andre de C. Milone, Jorge Melendez +10
We have investigated the thorium (Th) abundance in a sample of 53 thin disc solar twins covering a wide range of ages. These data provide constrains on the mantle energy budget of…