On the nature of rapidly rotating single evolved stars
| dc.contributor.author | Silva, R. Rodrigues da | |
| dc.contributor.author | Martins, B. L. Canto | |
| dc.contributor.author | Medeiros, José Renan de | |
| dc.date.accessioned | 2020-05-28T12:36:30Z | |
| dc.date.available | 2020-05-28T12:36:30Z | |
| dc.date.issued | 2015 | |
| dc.description.resumo | We present an analysis of the nature of the rapidly rotating, apparently single giant based on rotational and radial velocity measurements carried out by the CORAVEL spectrometers. From the analyzed sample, composed of 2010 spectroscopic, apparently single, evolved stars of luminosity classes IV, III, II, and Ib with spectral types G and K, we classified 30 stars that presented unusual, moderate to rapid rotation. This work reports, for the first time, the presence of these abnormal rotators among subgiant, bright giant, and Ib supergiant stars. To date, this class of stars was reported only among giant stars of luminosity class III. Most of these abnormal rotators present an IRAS infrared excess, which, in principle, can be related to dust around these stars. | pt_BR |
| dc.identifier.citation | MEDEIROS, José Renan de et al. On the nature of rapidly rotating single evolved stars. Astrophysical Journal (Online), [s. l.], v. 801, p. 54, 2015. ISSN 1538-4357 versão online. DOI https://doi.org/10.1088/0004-637X/801/1/54. Disponível em: http://iopscience.iop.org/article/10.1088/0004-637X/801/1/54/meta. Acesso em: 28 maio 2020. | pt_BR |
| dc.identifier.doi | http://dx.doi.org/10.1088/0004-637X/801/1/54 | |
| dc.identifier.issn | 0004-637X (print), 1538-4357 (online) | |
| dc.identifier.uri | https://repositorio.ufrn.br/jspui/handle/123456789/29085 | |
| dc.language | en | pt_BR |
| dc.publisher | American Astronomical Society | pt_BR |
| dc.subject | Stars: evolution | pt_BR |
| dc.subject | Stars: rotation | pt_BR |
| dc.title | On the nature of rapidly rotating single evolved stars | pt_BR |
| dc.type | article | pt_BR |
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