313 citations · 3.8k across the 65 of their papers we have counts for
8 papers · 1 filter
Radial velocity information content of M dwarf spectra in the near-infrared
P. Figueira, V. Zh. Adibekyan, M. Oshagh +7
Aims: We evaluate the radial velocity (RV) information content and achievable precision on M0-M9 spectra covering the ZYJHK bands. We do so while considering both a perfect atmosph…
SOPHIE velocimetry of Kepler transit candidates XVII. The physical properties of giant exoplanets within 400 days of period
A. Santerne, C. Moutou, M. Tsantaki +19
While giant extrasolar planets have been studied for more than two decades now, there are still some open questions such as their dominant formation and migration process, as well…
NIR spectroscopy of the Sun and HD20010 - Compiling a new linelist in the NIR
D. T. Andreasen, S. G. Sousa, E. Delgado Mena +4
Context: Effective temperature, surface gravity, and metallicity are basic spectroscopic stellar parameters necessary to characterize a star or a planetary system. Reliable atmosph…
Photo-dynamical mass determination of the multi-planetary system K2-19
S. C. C. Barros, J. M. Almenara, O. Demangeon +32
K2-19 is the second multi-planetary system discovered with K2 observations. The system is composed of two Neptune size planets close to the 3:2 mean-motion resonance. To better cha…
Identifying the best iron-peak and -capture elements for chemical tagging: The impact of the number of lines on measured scatter
V. Adibekyan, P. Figueira, N. C. Santos +9
The main goal of this work is to explore which elements carry the most information about the birth origin of stars and as such that are best suited for chemical tagging. We explore…
Chemical abundances and kinematics of 257 G-, K-type field giants. Setting a base for further analysis of giant-planet properties orbiting evolved stars
V. Zh. Adibekyan, L. Benamati, N. C. Santos +9
We performed a uniform and detailed abundance analysis of 12 refractory elements (Na, Mg, Al, Si, Ca, Ti, Cr, Ni, Co, Sc, Mn, and V) for a sample of 257 G- and K-type evolved stars…
Homogeneous spectroscopic parameters for bright planet host stars from the northern hemisphere
S. G. Sousa, N. C. Santos, A. Mortier +6
Aims. In this work we derive new precise and homogeneous parameters for 37 stars with planets. For this purpose, we analyze high resolution spectra obtained by the NARVAL spectrogr…
One of the closest exoplanet pairs to the 3:2 Mean Motion Resonance: K2-19b \& c
David J. Armstrong, Alexandre Santerne, Dimitri Veras +25
The K2 mission has recently begun to discover new and diverse planetary systems. In December 2014 Campaign 1 data from the mission was released, providing high-precision photometry…