537 citations · 10.5k across the 192 of their papers we have counts for
7 papers · 1 filter
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.…
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…
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…