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The Response of Atmospheric Chemistry on Earthlike Planets around F, G and K Stars to Small Variations in Orbital Distance
John Lee Grenfell, Barbara Stracke, Philip von Paris +4
One of the prime goals of future investigations of extrasolar planets is to search for life as we know it. The Earth's biosphere is adapted to current conditions. How would the atm…
Potential of Ozone Formation by the Smog Mechanism to shield the surface of the Early Earth from UV radiation?
John Lee Grenfell, Barbara Stracke, Beate Patzer +2
We propose that the photochemical smog mechanism produced substantial ozone (O3) in the troposphere during the Proterozoic, which contributed to ultraviolet (UV) radiation shieldin…
Results from the Exoplanet Search Programmes with BEST and TEST
Jochen Eisloeffel, Artie P. Hatzes, Heike Rauer +4
Thueringer Landessternwarte Tautenburg (TLS) has started to operate a small dedicated telescope - the Tautenburg Exoplanet Search Telescope (TEST) - searching for transits of extra…
Deep Impact : High Resolution Optical Spectroscopy with the ESO VLT and the Keck 1 telescope
E. Jehin, J. Manfroid, D. Hutsemekers +6
We report on observations of comet 9P/Tempel 1 carried out before, during, and after the NASA DEEP IMPACT event (UT July 4), with the optical spectrometers UVES and HIRES mounted o…