A self-consistent escape model with revised metastable helium rates shows that diffusive separation and 20-40% photoelectron heating efficiency, not intrinsic helium depletion, match HD209458b's weak He I 10830 and H alpha transit signals.
Title resolution pending
1 Pith paper cite this work, alongside 3 external citations. Polarity classification is still indexing.
1
Pith paper citing it
3
external citations · OpenAlex
fields
astro-ph.EP 1years
2025 1verdicts
CONDITIONAL 1representative citing papers
citing papers explorer
-
A Multi-Species Atmospheric Escape Model with Excited Hydrogen and Helium: Application to HD209458b
A self-consistent escape model with revised metastable helium rates shows that diffusive separation and 20-40% photoelectron heating efficiency, not intrinsic helium depletion, match HD209458b's weak He I 10830 and H alpha transit signals.