منابع مشابه
A Research Newsletter Dedicated to Cool Stars and the Sun
Due Date: Friday, 19 February 2010 at the COSPAR website http://www.cospar-assembly.org/ Questions about this session can be addressed to the organizers: [email protected] [email protected]
متن کاملGalactic Environments of the Sun and Cool Stars
The importance of understanding the current and historical galactic environments of cool stars is discussed. The penetration of interstellar gas into a stellar astrosphere is a function of the interaction of the star with the interstellar cloud surrounding the star, and this factor needs to be understood if an efficient search for life-bearing planets is to be made. For the Sun, both current an...
متن کاملSpectropolarimetry of cool stars
In recent years, the development of spectropolarimetric techniques deeply modified our knowledge of stellar magnetism. In the case of solar-type stars, the challenge is to measure a geometrically complex field and determine its evolution over very different time frames. In this article, I summarize some important observational results obtained in this field over the last two decades and detail ...
متن کاملChemical abundances in cool metal rich disk dwarf stars
The present study of spectra of twelve metal-rich cool dwarf stars, carefully selected in order to cover a range of temperatures (∼ 4400 − 6000 K), is a follow up on Feltzing & Gustafsson (1998) with the aim to understand the apparent over-ionization and anomalous elemental abundances found by them for the K dwarf stars in their sample. Our method of analysis employs synthetic spectra of the fu...
متن کاملRadio Emission from Cool Stars
Recent developments in the study of radio emission from cool stars are reviewed. The eld of stellar radio astronomy would barely exist if active cool stars were similar to the Sun. However, many active stars appear to be fundamentally diierent from the Sun in that they possess a nonthermal corona which produces strong and steady radio emission. That is, in addition to the thermal populations at...
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ژورنال
عنوان ژورنال: Astronomische Nachrichten
سال: 2017
ISSN: 0004-6337,1521-3994
DOI: 10.1002/asna.201713315