Journal article
Homogeneous search for helium in the atmosphere of 11 gas giant exoplanets with SPIRou
Abstract
The metastable helium triplet in the near-infrared (10 833 Å) is among the most important probes of exoplanet atmospheres. It can trace their extended outer layers and constrain mass loss. We used the near-infrared high-resolution spectropolarimeter SPIRou on the CFHT to search for the spectrally resolved helium triplet in the atmospheres of eleven exoplanets, ranging from warm mini-Neptunes to hot Jupiters and orbiting G, K, and M dwarfs. …
Authors
Allart R; Lemée-Joliecoeur P-B; Jaziri AY; Lafrenière D; Artigau E; Cook N; Darveau-Bernier A; Dang L; Cadieux C; Boucher A
Journal
Astronomy & Astrophysics, Vol. 677, ,
Publisher
EDP Sciences
Publication Date
9 2023
DOI
10.1051/0004-6361/202245832
ISSN
0004-6361