Density, not radius, separates rocky and water-rich small planets orbiting M dwarf stars
R Luque, E Pallé - Science, 2022 - science.org
Exoplanets smaller than Neptune are common around red dwarf stars (M dwarfs), with those
that transit their host star constituting the bulk of known temperate worlds amenable for …
that transit their host star constituting the bulk of known temperate worlds amenable for …
Heavy metal rules. I. Exoplanet incidence and metallicity
V Adibekyan - Geosciences, 2019 - mdpi.com
The discovery of only a handful of exoplanets required establishing a correlation between
giant planet occurrence and metallicity of their host stars. More than 20 years have already …
giant planet occurrence and metallicity of their host stars. More than 20 years have already …
A candidate short-period sub-Earth orbiting Proxima Centauri
JP Faria, AS Mascareño, P Figueira, AM Silva… - Astronomy & …, 2022 - aanda.org
Context. Proxima Centauri is the closest star to the Sun. This small, low-mass, mid M dwarf is
known to host an Earth-mass exoplanet with an orbital period of 11.2 days within the …
known to host an Earth-mass exoplanet with an orbital period of 11.2 days within the …
A compositional link between rocky exoplanets and their host stars
Stars and planets both form by accreting material from a surrounding disk. Because they
grow from the same material, theory predicts that there should be a relationship between …
grow from the same material, theory predicts that there should be a relationship between …
Instrumentation for the detection and characterization of exoplanets
F Pepe, D Ehrenreich, MR Meyer - Nature, 2014 - nature.com
In no other field of astrophysics has the impact of new instrumentation been as substantial
as in the domain of exoplanets. Before 1995 our knowledge of exoplanets was mainly based …
as in the domain of exoplanets. Before 1995 our knowledge of exoplanets was mainly based …
The GAPS programme with HARPS-N at TNG-XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting …
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 …
transiting giant planets (TGPs) that are alone or have distant companions; we employed …
A spectral survey of an ultra-hot Jupiter-Detection of metals in the transmission spectrum of KELT-9 b
Context. KELT-9 b exemplifies a newly emerging class of short-period gaseous exoplanets
that tend to orbit hot, early type stars–termed ultra-hot Jupiters. The severe stellar irradiation …
that tend to orbit hot, early type stars–termed ultra-hot Jupiters. The severe stellar irradiation …
3D selection of 167 substellar companions to nearby stars
We analyze 5108 AFGKM stars with at least five high-precision radial velocity points, as well
as Gaia and Hipparcos astrometric data, utilizing a novel pipeline developed in previous …
as Gaia and Hipparcos astrometric data, utilizing a novel pipeline developed in previous …
Proton acceleration in thermonuclear nova explosions revealed by gamma rays
VA Acciari, S Ansoldi, LA Antonelli, A Arbet Engels… - Nature …, 2022 - nature.com
Classical novae are cataclysmic binary star systems in which the matter of a companion star
is accreted on a white dwarf,. Accumulation of hydrogen in a layer eventually causes a …
is accreted on a white dwarf,. Accumulation of hydrogen in a layer eventually causes a …
A candidate super-Earth planet orbiting near the snow line of Barnard's star
Barnard's star is a red dwarf, and has the largest proper motion (apparent motion across the
sky) of all known stars. At a distance of 1.8 parsecs, it is the closest single star to the Sun; …
sky) of all known stars. At a distance of 1.8 parsecs, it is the closest single star to the Sun; …