368 citations · 1.5k across the 36 of their papers we have counts for
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A Search for Planetary Metastable Helium Absorption in the V1298 Tau System
Shreyas Vissapragada, Guðmundur Stefánsson, Michael Greklek-McKeon +28
Early in their lives, planets endure extreme amounts of ionizing radiation from their host stars. For planets with primordial hydrogen and helium-rich envelopes, this can lead to s…
The post-transit tail of WASP-107b observed at 10830A
J. J. Spake, A. Oklopčić, L. A. Hillenbrand
Understanding the effects of high-energy radiation and stellar winds on planetary atmospheres is vital for explaining the observed properties of close-in exoplanets. Observations o…
Stellar Wind Confinement of Evaporating Exoplanet Atmospheres and its Signatures in 1083 nm Observations
Morgan MacLeod, Antonija Oklopčić
Atmospheric escape from close-in exoplanets is thought to be crucial in shaping observed planetary populations. Recently, significant progress has been made in observing this proce…
Metastable Helium Reveals an Extended Atmosphere for the Gas Giant HAT-P-18b
Kimberly Paragas, Shreyas Vissapragada, Heather A. Knutson +6
The metastable helium line at 1083 nm can be used to probe the extended upper atmospheres of close-in exoplanets and thus provide insight into their atmospheric mass loss, which is…