Is the Sun unique as a star - and if so, why?
2008 (English)In: Physica Scripta, ISSN 0031-8949, E-ISSN 1402-4896, Vol. T130, 014036- p.Article in journal (Refereed) Published
The question whether the Sun is peculiar as compared with other stars in its neigbourhood is revisited. It is concluded that although the Sun is rather normal from many points of view, it departs in several respects from most stars of similar age and galactic orbit. Thus, it is more massive, and the amplitude of the micro-variability of the Sun at visual wavelengths seems unusually small. It also departs from most stars in being a single star, and it may have an unusual planetary system. There are some tentative indications that its chemical composition departs from those of most solar-type stars of similar age. This is discussed and the departures are found not to be significant. I discuss here to what extent these peculiarities may be understood in terms of it being a planet host.
Place, publisher, year, edition, pages
2008. Vol. T130, 014036- p.
IdentifiersURN: urn:nbn:se:uu:diva-149527DOI: 10.1088/0031-8949/2008/T130/014036ISI: 000257677400037OAI: oai:DiVA.org:uu-149527DiVA: diva2:405054
Conference Information: 135th Nobel Symposium on Physics of Planetary Systems
Lidlngo, SWEDEN, JUN 18-22, 2007 2011-03-212011-03-202011-03-21Bibliographically approved