Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorCarvalho, J. C.-
dc.contributor.authorNascimento Jr., J. D. do-
dc.contributor.authorSilva, R.-
dc.contributor.authorMedeiros, José Renan de-
dc.identifier.citationMEDEIROS, José Renan de. Non-Gaussian Statistics and Stellar Rotational Velocities of Main-Sequence Field Stars. The Astrophysical Journal, [s. l.], v. 696, p. L48-L51, 2009. ISSN 1538-4357 versão online. DOI Disponível em: Acesso em: 19 maio 2020.pt_BR
dc.identifier.issn0004-637X (print), 1538-4357 (online)-
dc.publisherAmerican Astronomical Societypt_BR
dc.subjectStars: evolutionpt_BR
dc.subjectStars: fundamental parameterspt_BR
dc.subjectStars: rotationpt_BR
dc.subjectStars: statisticspt_BR
dc.titleNon-gaussian statistics and stellar rotational velocities of main-sequence field starspt_BR
dc.description.resumoIn this Letter, we study the observed distributions of rotational velocity in a sample of more than 16,000 nearby F and G dwarf stars, magnitude complete, and presenting high-precision V sin i measurements. We show that the velocity distributions cannot be fitted by a Maxwellian. In addition, an analysis based on both Tsallis and Kaniadakis power-law statistics is by far the most appropriate statistics and gives a very good fit. It is also shown that single and binary stars have similar rotational distributions. This is the first time, to our knowledge, that these two new statistics have been tested for the rotation of such a large sample of stars, pointing solidly to a solution of the puzzling problem of the function governing the distribution of stellar rotational velocity.pt_BR
Appears in Collections:CCET - DFTE - Artigos publicados em periódicos

Files in This Item:
There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.