We describe and report first results from PALM-3000, the second-generation astronomical adaptive optics facility for the 5.1-m Hale telescope at Palomar Observatory. PALM-3000 has been engineered for high-contrast imaging and […]
astro-ph.IM
Posted inExoplanets, -moons, -comets, Habitable Zones
Kepler: Searching The Habitable Zones of the Brightest Stars
In today’s mailing, Hogg et al. propose image modeling techniques to maintain 10-ppm-level precision photometry in Kepler data with only two working reaction wheels. While these results are relevant to […]
Posted inBiosignatures & Paleobiology, Exoplanets, -moons, -comets
Spectroscopic Direct Detection of Reflected Light from Extrasolar Planets
At optical wavelengths, an exoplanet’s signature is essentially reflected light from the host star – several orders of magnitude fainter. Since it is superimposed on the star spectrum its detection […]
Posted inAstrochemistry
Modeling of Subsurface Ice Mantle on Interstellar Dust Grains
Interstellar ices are layers of molecules deposited on fine dust grains in dark and dense molecular cloud cores. Subsurface ice has been considered in a few astrochemical models, which have […]