There has been an incredibly large investment in obtaining high-resolution stellar spectra for
determining chemical abundances of stars. This information is crucial to answer …

An accurate and precise Kepler Stellar Properties Catalog is essential for the interpretation
of the Kepler exoplanet survey results. Previous Kepler Stellar Properties Catalogs have …

Low-mass planets have an extraordinarily diverse range of bulk compositions, from primarily
rocky worlds to those with deep gaseous atmospheres. As techniques for measuring the …

Multiple planet systems provide an ideal laboratory for probing exoplanet composition,
formation history and potential habitability. For the TRAPPIST-1 planets, the planetary radii …

Context. Ultra-short-period (USP) planets are defined as planets with orbital periods shorter
than one day. This type of planets is rare, highly irradiated, and interesting because their …

The atmospheres of close-in planets are strongly influenced by mass loss driven by the high-
energy (X-ray and extreme ultraviolet, EUV) irradiation of the host star, particularly during the …

The stellar rotation versus age relation is commonly considered a useful tool to derive
reliable ages for Sun-like stars. However, in the light of Kepler data, the presence of …

Abstract The sub-Saturn (∼ 4–8 R⊕) occurrence rate rises with orbital period out to at
least∼ 300 days. In this work we adopt and test the hypothesis that the decrease in their …

Abstract The Apache Point Observatory Galactic Evolution Experiment (APOGEE) has
observed∼ 600 transiting exoplanets and exoplanet candidates from Kepler (Kepler Objects …

Context. Mass and radius are two fundamental properties for characterising exoplanets, but
only for a relatively small fraction of exoplanets are they both available. Mass is often …