3 papers
astro-ph.EP2025
Sharp dynamic points in Earth-Sun physics
José A. Rueda, Sergio RamÃrez, Miguel A. Sánchez +2
The subsolar point, the closest location on Earth's surface to the Sun, marks the Sun-Earth line of gravity that governs Earth's coupled orbital-rotational cycle. We examined the d…
astro-ph.SR2025
ESPRESSO observations of the debris-accreting white dwarf WD\,0141--675
Sergio H. Ramirez, Boris T. Gaensicke, Detlev Koester +2
WD\,0141--675 was reported as the first astrometrically detected white dwarf planet host candidate as part of the third data release from \textit{Gaia}, just to be later retracted…
astro-ph.SR2025
Follow-up on three poorly studied AM CVn stars
Amornrat Aungwerojwit, Boris T. Gaensicke, E. Breedt +12
We report follow-up observations of three poorly studied AM CVn-type binaries: CRTS CSS150211 J091017-200813, NSV1440, and SDSSJ183131.63+420220.2. Analysing time-series photometry…