Statistical methods for exoplanet detection with radial velocities

NC Hara, EB Ford - Annual Review of Statistics and Its …, 2023 - annualreviews.org
Exoplanets can be detected with various observational techniques. Among them, radial
velocity (RV) has the key advantages of revealing the architecture of planetary systems and …

Small-scale dynamos: from idealized models to solar and stellar applications

M Rempel, T Bhatia, L Bellot Rubio… - Space Science …, 2023 - Springer
In this article we review small-scale dynamo processes that are responsible for magnetic
field generation on scales comparable to and smaller than the energy carrying scales of …

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 …

A compositional link between rocky exoplanets and their host stars

V Adibekyan, C Dorn, SG Sousa, NC Santos, B Bitsch… - Science, 2021 - science.org
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 …

Vanadium oxide and a sharp onset of cold-trapping on a giant exoplanet

S Pelletier, B Benneke, M Ali-Dib, B Prinoth, D Kasper… - Nature, 2023 - nature.com
The abundance of refractory elements in giant planets can provide key insights into their
formation histories. Owing to the low temperatures of the Solar System giants, refractory …

The occurrence rate of giant planets orbiting low-mass stars with TESS

EM Bryant, D Bayliss, V Van Eylen - Monthly Notices of the Royal …, 2023 - academic.oup.com
We present a systematic search for transiting giant planets () orbiting nearby low-mass stars
(). The formation of giant planets around low-mass stars is predicted to be rare by the core …

Radial-velocity discovery of a second planet in the TOI-1338/BEBOP-1 circumbinary system

MR Standing, L Sairam, DV Martin, AHMJ Triaud… - Nature …, 2023 - nature.com
Circumbinary planets, those that orbit around both stars of a central binary star system,
challenge our understanding of planet formation. With only 12 binary systems known to host …

Retrieval survey of metals in six ultrahot Jupiters: trends in chemistry, rain-out, ionization, and atmospheric dynamics

S Gandhi, A Kesseli, Y Zhang, A Louca… - The Astronomical …, 2023 - iopscience.iop.org
Ground-based high-resolution spectroscopy (HRS) has detected numerous chemical
species and atmospheric dynamics in exoplanets, most notably ultrahot Jupiters (UHJs) …

Masses and compositions of three small planets orbiting the nearby M dwarf L231-32 (TOI-270) and the M dwarf radius valley

V Van Eylen, N Astudillo-Defru, X Bonfils… - Monthly Notices of …, 2021 - academic.oup.com
We report on precise Doppler measurements of L231-32 (TOI-270), a nearby M dwarf (d= 22
pc, M⋆= 0.39 M⊙, R⋆= 0.38 R⊙), which hosts three transiting planets that were recently …

Warm terrestrial planet with half the mass of Venus transiting a nearby star

ODS Demangeon, MRZ Osorio, Y Alibert… - Astronomy & …, 2021 - aanda.org
In recent years, the advent of a new generation of radial velocity instruments has allowed us
to detect planets with increasingly lower mass and to break the one Earth-mass barrier. Here …