From stars to diverse mantles, melts, crusts, and atmospheres of rocky exoplanets
The advent of radial velocity (RV) and transit photometry method has resulted in the
detection of more than 5000 exoplanets since 1995. Of these detected planets, a significant …
detection of more than 5000 exoplanets since 1995. Of these detected planets, a significant …
A resonant sextuplet of sub-Neptunes transiting the bright star HD 110067
Planets with radii between that of the Earth and Neptune (hereafter referred to as 'sub-
Neptunes') are found in close-in orbits around more than half of all Sun-like stars,. However …
Neptunes') are found in close-in orbits around more than half of all Sun-like stars,. However …
Detection of atmospheric escape from four young mini-Neptunes
We use Keck/NIRSPEC to survey a sample of of young (< 1 Gyr), short-period mini-
Neptunes orbiting nearby K dwarfs to measure their mass loss via the metastable helium …
Neptunes orbiting nearby K dwarfs to measure their mass loss via the metastable helium …
The MOPYS project: A survey of 70 planets in search of extended He I and H atmospheres-No evidence of enhanced evaporation in young planets
J Orell-Miquel, F Murgas, E Pallé, M Mallorquín… - Astronomy & …, 2024 - aanda.org
During the first billion years of their life, exoplanet atmospheres are modified by different
atmospheric escape phenomena that can strongly affect the shape and morphology of the …
atmospheric escape phenomena that can strongly affect the shape and morphology of the …
The Gaia-ESO Survey: empirical estimates of stellar ages from lithium equivalent widths (eagles)
We present an empirical model of age-dependent photospheric lithium depletion, calibrated
using a large homogeneously analysed sample of 6200 stars in 52 open clusters, with ages …
using a large homogeneously analysed sample of 6200 stars in 52 open clusters, with ages …
Observability of evaporating lava worlds
Lava worlds belong to a class of short orbital period planets reaching dayside temperatures
high enough to melt their silicate crust. Theory predicts that the resulting lava oceans outgas …
high enough to melt their silicate crust. Theory predicts that the resulting lava oceans outgas …
Observability of silicates in volatile atmospheres of super-Earths and sub-Neptunes-Exploring the edge of the evaporation desert
Many of the confirmed short-period super-Earths and smaller sub-Neptunes are sufficiently
irradiated for the surface silicates to be sustained in a long-lasting molten state. While there …
irradiated for the surface silicates to be sustained in a long-lasting molten state. While there …
TOI-1801 b: A temperate mini-Neptune around a young M0. 5 dwarf
M Mallorquín, E Goffo, E Pallé, N Lodieu… - Astronomy & …, 2023 - aanda.org
We report the discovery, mass, and radius determination of TOI-1801 b, a temperate mini-
Neptune around a young M dwarf. TOI-1801 b was observed in TESS sectors 22 and 49 …
Neptune around a young M dwarf. TOI-1801 b was observed in TESS sectors 22 and 49 …
Planet(esimal)s around stars with TESS (PAST) III: A search for triplet He i in the atmospheres of two 200 Myr-old planets
E Gaidos, T Hirano, RA Lee, H Harakawa… - Monthly Notices of …, 2023 - academic.oup.com
We report a search for excess absorption in the 1083.2 nm line of ortho (triplet) helium
during transits of TOI-1807b and TOI-2076b, 1.25 and 2.5-R⊕ planets on 0.55-and 10.4-d …
during transits of TOI-1807b and TOI-2076b, 1.25 and 2.5-R⊕ planets on 0.55-and 10.4-d …
Uncovering the true periods of the young sub-Neptunes orbiting TOI-2076
Context. TOI-2076 is a transiting three-planet system of sub-Neptunes orbiting a bright (G=
8.9 mag), young (340±80 Myr) K-type star. Although a validated planetary system, the orbits …
8.9 mag), young (340±80 Myr) K-type star. Although a validated planetary system, the orbits …