Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Institute of Astrophysics and Space SciencesPT1.2k papers
- Centre National de la Recherche ScientifiqueFR1.1k papers
- Centro de Astrofísica da Universidade do PortoPT1k papers
- University of GenevaCH636 papers
- Instituto de Astrofísica de CanariasES591 papers
- Universidad de La LagunaES520 papers
- European Southern ObservatoryCL446 papers
- Aix-Marseille UniversitéFR434 papers
- University of LisbonPT430 papers
- Institut d'Astrophysique de ParisFR425 papers
- Leiden UniversityNL398 papers
- University of CambridgeGB398 papers
25 papers · 2 filters
Li depletion in solar analogues with exoplanets: Extending the sample
E. Delgado Mena, G. Israelian, J. I. González Hernández +8
We want to study the effects of the formation of planets and planetary systems on the atmospheric Li abundance of planet host stars. In this work we present new determinations of l…
The SOPHIE search for northern extrasolar planets: VI. Three new hot Jupiters in multi-planet extrasolar systems
C. Moutou, G. Hebrard, F. Bouchy +21
We present high-precision radial-velocity measurements of three solar-type stars: HD 13908, HD 159243, and HIP 91258. The observations were made with the SOPHIE spectrograph at the…
Orbital and physical properties of planets and their hosts: new insights on planet formation and evolution
V. Zh. Adibekyan, P. Figueira, N. C. Santos +7
We explore the relations between physical and orbital properties of planets and properties of their host stars to identify the main observable signatures of the formation and evolu…
An Earth-sized planet with an Earth-like density
Francesco Pepe, Andrew Collier Cameron, David W. Latham +31
Kepler-78 (KIC 8435766) was identified by Sanchis-Ojeda et al. (2013) as harbouring a transiting planet of 1.16 times the size of the Earth and an orbital period of only 8.5 hours.…
Extrasolar planets and brown dwarfs around A--F type stars. VIII. A giant planet orbiting the young star HD113337
S. Borgniet, I. Boisse, A. -M. Lagrange +19
In the frame of the search for extrasolar planets and brown dwarfs around early-type main-sequence stars, we present the detection of a giant planet around the young F-type star HD…
Characterizing small planets transiting small stars with SPIRou
A. Santerne, J. -F. Donati, R. Doyon +9
SPIRou, a near infrared spectropolarimeter, is a project of new instrument to be mounted at the Canada France Hawaii Telescope in 2017. One of the main objectives of SPIRou is to r…
The PLATO 2.0 Mission
H. Rauer, C. Catala, C. Aerts +159
PLATO 2.0 has recently been selected for ESA's M3 launch opportunity (2022/24). Providing accurate key planet parameters (radius, mass, density and age) in statistical numbers, it…
New and updated stellar parameters for 90 transit hosts. The effect of the surface gravity
A. Mortier, N. C. Santos, S. G. Sousa +5
Context. Precise stellar parameters are crucial in exoplanet research for correctly determining of the planetary parameters. For stars hosting a transiting planet, determining of t…
SOPHIE velocimetry of Kepler transit candidates IX. KOI-415 b: a long-period, eccentric transiting brown dwarf to an evolved Sun
C. Moutou, A. S. Bonomo, G. Bruno +8
We report the discovery of a long-period brown-dwarf transiting companion of the solar-type star KOI-415. The transits were detected by the Kepler space telescope. We conducted Dop…
Probing the effect of gravitational microlensing on the measurements of the Rossiter-McLaughlin effect
M. Oshagh, G. Boué, P. Figueira +2
In general, in the studies of transit light-curves and the Rossiter-McLaughlin (RM), the contribution of the planet's gravitational microlensing is neglected. Theoretical studies,…
The contribution of secondary eclipses as astrophysical false positives to exoplanet transit surveys
A. Santerne, F. Fressin, R. F. Díaz +3
We investigate in this paper the astrophysical false-positive configuration in exoplanet-transit surveys that involves eclipsing binaries and giant planets which present only a sec…
Spectroscopic direct detection of reflected light from extra-solar planets
Jorge H. C. Martins, Pedro Figueira, Nuno Santos +1
At optical wavelengths, an exoplanet's signature is essentially reflected light from the host star - several orders of magnitude fainter. Since it is superimposed on the star spect…
New and updated stellar parameters for 71 evolved planet hosts. On the metallicity - giant planet connection
A. Mortier, N. C. Santos, S. G. Sousa +5
It is still being debated whether the well-known metallicity - giant planet correlation for dwarf stars is also valid for giant stars. For this reason, having precise metallicities…
Line-profile variations in radial-velocity measurements: Two alternative indicators for planetary searches
P. Figueira, N. C. Santos, F. Pepe +2
Aims. We introduce two methods to identify false-positive planetary signals in the context of radial-velocity exoplanet searches. The first is the bi-Gaussian cross-correlation fun…
Effect of stellar spots on high-precision transit light-curve
M. Oshagh, N. C. Santos, I. Boisse +4
Stellar activity features such as spots can create complications in determining planetary parameters through spectroscopic and photometric observations. The overlap of a transiting…
The HARPS search for southern extra-solar planets. XXXIV. A planetary system around the nearby M dwarf GJ163, with a super-Earth possibly in the habitable zone
X. Bonfils, G. Lo Curto, A. C. M. Correia +19
The meter-per-second precision achieved by today velocimeters enables the search for 1-10 M_Earth planets in the habitable zone of cool stars. This paper reports on the detection o…
KOI-200b and KOI-889b: two transiting exoplanets detected and characterized with Kepler, SOPHIE and HARPS-N
G. Hebrard, J. -M. Almenara, A. Santerne +8
We present the detection and characterization of the two new transiting, close-in, giant extrasolar planets KOI-200b and KOI-889b. They were first identified by the Kepler team as…
Searching for the signatures of terrestrial planets in F-, G-type main-sequence stars
J. I. González Hernández, E. Delgado-Mena, S. G. Sousa +4
We have studied the volatile-to-refractory abundance ratios to investigate their possible relation with the low-mass planetary formation. We present a fully differential chemical a…
The Homogeneous Study of Transiting Systems (HoSTS) I. The Pilot Study of WASP-13
Y. Gómez Maqueo Chew, F. Faedi, P. Cargile +13
We present the fundamental stellar and planetary properties of the transiting planetary system WASP-13 within the framework of the Homogeneous Study of Transiting Systems (HoSTS).…
The GAPS Programme with HARPS-N@TNG II: No giant planets around the metal-poor star HIP 11952
S. Desidera, A. Sozzetti, A. S. Bonomo +37
In the context of the program Global Architecture of Planetary Systems (GAPS), we have performed radial velocity monitoring of the metal-poor star HIP 11952 on 35 nights over about…
On the functional form of the metallicity-giant planet correlation
A. Mortier, N. C. Santos, S. Sousa +3
It is generally accepted that the presence of a giant planet is strongly dependent on the stellar metallicity. A stellar mass dependence has also been investigated, but this depend…
Transit timing variations in WASP-10b induced by stellar activity?
S. C. C. Barros, G. Boue, N. P. Gibson +5
The hot-Jupiter WASP-10b was reported by Maciejewski et al. (2011a,b) to show transit timing variations (TTV) with an amplitude of ~ 3.5 minutes. These authors proposed that the ob…
Successful Asteroseismology for a Better Characterization of the Exoplanet HAT-P-7b
M. Oshagh, A. Grigahcène, O. Benomar +4
It is well known that asteroseismology is the unique technique permitting the study of the internal structure of pulsating stars using their pulsational frequencies, which is per s…
Spitzer Observations of GJ3470b: a Very Low-density Neptune-size Planet Orbiting a Metal-rich M dwarf
Brice-Olivier Demory, Guillermo Torres, Vasco Neves +13
We present Spitzer/IRAC 4.5-micron transit photometry of GJ3470b, a Neptune-size planet orbiting a M1.5 dwarf star with a 3.3-day period recently discovered in the course of the HA…