منابع مشابه
The M Dwarf GJ 436 and its Neptune - Mass Planet
We determine stellar parameters for the M dwarf GJ 436 that hosts a Neptunemass planet. We employ primarily spectral modeling at low and high resolution, examining the agreement between model and observed optical spectra of five comparison stars of type, M0-M3. Modeling high resolution optical spectra suffers from uncertainties in TiO transitions, affecting the predicted strengths of both atomi...
متن کاملSearch for a habitable terrestrial planet transiting the nearby red dwarf GJ 1214⋆
High-precision eclipse spectrophotometry of transiting terrestrial exoplanets represents a promising path for the first atmospheric characterizations of habitable worlds and the search for life outside our solar system. The detection of terrestrial planets transiting nearby late-type M-dwarfs could make this approach applicable within the next decade, with soon-to-come general facilities. In th...
متن کامل0 v 2 4 D ec 2 00 6 The M Dwarf GJ 436 and its Neptune - Mass Planet
We determine stellar parameters for the M dwarf GJ 436 that hosts a Neptunemass planet. We employ primarily spectral modeling at low and high resolution, examining the agreement between model and observed optical spectra of five comparison stars of type, M0-M3. Modeling high resolution optical spectra suffers from uncertainties in TiO transitions, affecting the predicted strengths of both atomi...
متن کاملJohannes Holtfreter (1901-1992)
Johannes Holtfreter [6] made important discoveries about the properties of the organizer [7] discovered by Hans Spemann [8]. Although he spent much time away from the lab over many years, he was a productive researcher. His colleagues noted that the time he spent away helped revitalize his ideas. He is credited with the development of a balanced salt medium to allow embryos to develop; the disc...
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ژورنال
عنوان ژورنال: Astronomische Nachrichten
سال: 1901
ISSN: 0004-6337,1521-3994
DOI: 10.1002/asna.19011552409