Searching for Far-ultraviolet Auroral/dayglow Emission from HD209458b with the Cosmic Origins Spectrograph

  title={Searching for Far-ultraviolet Auroral/dayglow Emission from HD209458b with the Cosmic Origins Spectrograph},
  author={Kevin France and John Thomas Stocke and Hao Yang and Jeffrey L. Linsky and Brian Charles Wolven and Cynthia S. Froning and James C. Green and Steven Neil Osterman},
We present recent observations from the HST -Cosmic Origins Spectrograph aimed at characterizing the auroral emission from the extrasolar planet HD209458b. We obtained medium-resolution (R ∼ 20,000) far-ultraviolet (1150 – 1700 Å) spectra at both the Phase 0.25 and Phase 0.75 quadrature positions as well as a stellar baseline measurement at secondary eclipse. This analysis includes a catalog of stellar emission lines and a star-subtracted spectrum of the planet. We present an emission model for… Expand

Figures and Tables from this paper

The escape of heavy atoms from the ionosphere of HD209458b. II. Interpretation of the observations
Transits in the H I 1216 A (Lyman α), O I 1334 A, C II 1335 A, and Si III 1206.5 A lines constrain the properties of the upper atmosphere of HD209458b. In addition to probing the temperature andExpand
Colorado Ultraviolet Transit Experiment: a dedicated CubeSat mission to study exoplanetary mass loss and magnetic fields
Abstract. The Colorado Ultraviolet Transit Experiment (CUTE) is a near-UV (2550 to 3300  Å) 6U CubeSat mission designed to monitor transiting hot Jupiters to quantify their atmospheric mass loss andExpand
Flight performance and first results from the sub-orbital local interstellar cloud experiment (SLICE)
We present the flight performance and preliminary science results from the first flight of the Sub-orbital Local Interstellar Cloud Experiment (SLICE). SLICE is a rocket-borne far-ultravioletExpand


Molecular Spectra and Molecular Structure