1.3k citations · 4.7k across the 66 of their papers we have counts for
6 papers · 1 filter
Finding proto-spectroscopic binaries: Precise multi-epoch radial velocities of 7 protostars in rho-Ophiuchus
P. Viana Almeida, C. Melo, N. C. Santos +3
The formation of spectroscopic binaries (SB) may be a natural byproduct of star formation. The early dynamical evolution of multiple stellar systems after the initial fragmentation…
Comparing radial velocities of atmospheric lines with radiosonde measurements
P. Figueira, F. Kerber, A. Chacon +5
The precision of radial velocity (RV) measurements depends on the precision attained on the wavelength calibration. One of the available options is using atmospheric lines as a nat…
Transit-timing measurements with the model-independent barycenter method: Application to the LHS 6343 system
M. Oshagh, G. Boué, N. Haghighipour +3
We present a model-independent technique for calculating the time of mid-transits. This technique, named "barycenter method", uses the light-curve's symmetry to determine the trans…
Exoplanets transmission spectroscopy: accounting for eccentricity and longitude of periastron. Superwinds in the upper atmosphere of HD209458b?
M. Montalto, N. C. Santos, I. Boisse +3
Context: Several studies have so far placed useful constraints on planetary atmospheric properties using transmission spectrsocopy, and in the case of HD209458b even the radial vel…
Metallicity of M dwarfs: the link to exoplanets
V. Neves, X. Bonfils, N. C. Santos
The determination of the stellar parameters of M dwarfs is of prime importance in the fields of galactic, stellar and planetary astronomy. M stars are the least studied galactic co…
Disentangling stellar activity and planetary signals
I. Boisse, F. Bouchy, G. Hebrard +3
Photospheric stellar activity might be an important source of noise and confusion in the radial-velocity measurements. RV planet search surveys as well as follow-up of photometric…