Introduces a reflection spectroscopy metric and uses KELT-9 injection-recovery tests to demonstrate that rotational line broadening from rapid stellar rotation and large misalignments must be included when assessing detectability of exoplanet reflected spectra.
Reflected Spectroscopy of Small Exoplanets II: Characterization of Terrestrial Exoplanets
4 Pith papers cite this work. Polarity classification is still indexing.
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Climate states on exoplanets with the same atmospheric composition create different reflectance spectra, changing the detectability of atmospheric features and biosignatures, with seasonal variations on high-obliquity worlds adding time-dependent signals.
A template-matching simulation framework shows that R>1,000 spectrographs yield higher biosignature sensitivity than R~140 for Earth analogs, because correlated speckle noise can suppress detections at low resolution.
Early design trades for an HWO near-IR IFS favor a lenslet architecture and identify sampling, anamorphic packing, and crosstalk controls as the main levers on exoplanet yield.
citing papers explorer
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Spinning out of focus: The challenge of rotational line broadening in exoplanet reflection spectroscopy
Introduces a reflection spectroscopy metric and uses KELT-9 injection-recovery tests to demonstrate that rotational line broadening from rapid stellar rotation and large misalignments must be included when assessing detectability of exoplanet reflected spectra.
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Impact of Climate States and Seasons on Future Exo-Earth Observations
Climate states on exoplanets with the same atmospheric composition create different reflectance spectra, changing the detectability of atmospheric features and biosignatures, with seasonal variations on high-obliquity worlds adding time-dependent signals.
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Characterizing Earth analogs may require a moderate or high-resolution spectrograph
A template-matching simulation framework shows that R>1,000 spectrographs yield higher biosignature sensitivity than R~140 for Earth analogs, because correlated speckle noise can suppress detections at low resolution.
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Design and development of a near-IR integral field spectrograph for the HWO Coronagraph Instrument
Early design trades for an HWO near-IR IFS favor a lenslet architecture and identify sampling, anamorphic packing, and crosstalk controls as the main levers on exoplanet yield.