activity
20022026
most citedLithium and Halpha in stars and brown dwarfs of sigma Orionis

191 citations · 1.2k across the 38 of their papers we have counts for

collaborators

38 papers

astro-ph.EP2026

WD 1054-226 revisited: a stable transiting debris system

J. Korth, A. J. Mustill, H. Parviainen +24

A growing number of white dwarfs (WDs) exhibit one or more signs of remnant planetary systems, including transits, infrared excesses, and atmospheric metal pollution. WD 1054-226 s…

astro-ph.EP2026★ 1 cited

Mass estimates of the young TOI-451 transiting planets: Multidimensional Gaussian Process on stellar spectroscopic and photometric signals

Oscar Barragán, Manuel Mallorquín, Jorge Fernández-Fernández +30

The young TOI-451 planetary system, aged 125 Myr, provides a unique opportunity to test theories of planetary internal structures and atmospheric mass loss through examination of i…

astro-ph.EP2025

ExoClock Project IV: A homogeneous catalogue of 620 updated exoplanet ephemerides

A. Kokori, A. Tsiaras, G. Pantelidou +323

The ExoClock project is an open platform aiming to monitor exoplanets by integrating observations from space and ground based telescopes. This study presents an updated catalogue o…

astro-ph.SR2025★ 3 cited

Polarized, variable radio emission from the scallop-shell binary system DG CVn

Simranpreet Kaur, Daniele Viganò, Jackie Villadsen +9

DG CVn is an eruptive variable star and represents the closest member of the known sample of complex periodic variables, or scallop-shell stars. Over the years, this M dwarf binary…

astro-ph.SR2024★ 6 cited

Optical constraints on the coldest metal-poor population

Jerry Jun-Yan Zhang, Nicolas Lodieu, Eduardo L. Martín +10

The coldest metal-poor population made of T and Y dwarfs are archaeological tracers of our Galaxy because they are very old and have kept the pristine material. The optical propert…

astro-ph.SR2024★ 7 cited

Hints of auroral and magnetospheric polarized radio emission from the scallop-shell star 2MASS J050827292101444

Simranpreet Kaur, Daniele Viganò, Víctor J. S. Béjar +18

Scallop-shell stars, a recently discovered class of young M dwarfs, show complex optical light curves that are characterized by periodic dips as well as other features that are sta…