We provide evidence that the obliquities of stars with close-in giant planets were initially
nearly random, and that the low obliquities that are often observed are a consequence of …

The mass of a star is the most fundamental parameter for its structure, evolution, and final
fate. It is particularly important for any kind of stellar archaeology and characterization of …

Mass and radius are two of the most fundamental properties of an astronomical object.
Increasingly, new planet discoveries are being announced with a measurement of one of …

We carried out a Bayesian homogeneous determination of the orbital parameters of 231
transiting giant planets (TGPs) that are alone or have distant companions; we employed …

A few studies have reported a significant dearth of exoplanets with Neptune mass and
radius with orbital periods below 2–4 d. This cannot be explained by observational biases …

We combine optical, near-infrared, and mid-infrared spectra and photometry to construct
expanded spectral energy distributions for 145 field age (> 500 Myr) and 53 young (lower …

We describe an online database for extrasolar planetary-mass candidates, which is updated
regularly as new data are available. We first discuss criteria for inclusion of objects in the …

I calculate the physical properties of 32 transiting extrasolar planet and brown-dwarf systems
from existing photometric observations and measured spectroscopic parameters. The …

Aims. We report the discovery of very shallow (), periodic dips in the light curve of an active
G9V star observed by the CoRoT satellite, which we interpret as caused by a transiting …

There is no universally acknowledged criterion to distinguish brown dwarfs from planets.
Numerous studies have used or suggested a definition based on an object's mass, taking …