The detection of exoplanets orbiting other stars has revolutionized our view of the cosmos.
First results suggest that it is teeming with a fascinating diversity of rocky planets, including …

The prospects for the habitability of M-dwarf planets have long been debated, due to key
differences between the unique stellar and planetary environments around these low-mass …

Our understanding of the properties and demographics of exoplanets critically relies on our
ability to determine the fundamental properties of their host stars. The advent of Gaia and …

Precise and accurate parameters for late-type (late K and M) dwarf stars are important for
characterization of any orbiting planets, but such determinations have been hampered by …

Ground-and space-based planet searches employing radial velocity techniques and transit
photometry have detected thousands of planet-hosting stars in the Milky Way. With so many …

Classification of stars, by comparing their optical spectra to a few dozen spectral standards,
has been a workhorse of observational astronomy for more than a century. Here, we extend …

We present results of the largest, most comprehensive study ever done of the stellar
multiplicity of the most common stars in the Galaxy, the red dwarfs. We have conducted an …

The spectral and temporal behavior of exoplanet host stars is a critical input to models of the
chemistry and evolution of planetary atmospheres. Ultraviolet photons influence the …

Based on CHARA Array measurements, we present the angular diameters of 23 nearby,
main-sequence stars, ranging from spectral types A7 to K0, 5 of which are exoplanet host …

Context. The characterisation of the atmosphere of exoplanets is one of the main goals of
exoplanet science in the coming decades. Aims. We investigate the detectability of …