Sunspots, Starspots, and Elemental Abundances
نویسندگان
چکیده
منابع مشابه
New radio instrumentation for the study of sunspots and starspots
Much of the radio emission from the Sun and similar stars depends directly on magnetic fields for its source. For this reason, radio emission contains important diagnostic information on solar and stellar magnetic fields. This paper reviews the ways in which radio emission is sensitive to magnetic fields and discusses new radio instrumentation that will be able to exploit this information for m...
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Limits can be placed on nonstandard neutrino physics when big bang nucleosynthesis (BBN) calculations employing standard neutrino physics agree with the observationally inferred primordial abundances of deuterium (D), He, He, and Li. These constraints depend most sensitively on the abundances of D and He. New observational determinations of the primordial D and/or He abundances could force revi...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2017
ISSN: 1538-4357
DOI: 10.3847/1538-4357/aa7bea