Subir material

Suba sus trabajos a SEDICI, para mejorar notoriamente su visibilidad e impacto

 

Mostrar el registro sencillo del ítem

dc.date.accessioned 2020-04-21T18:16:19Z
dc.date.available 2020-04-21T18:16:19Z
dc.date.issued 2018-06
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/93912
dc.description.abstract Most radiation-driven winds of massive stars can be modelled with m-CAK theory, resulting in the so-called fast solution. However, the most rapidly rotating stars among them, especially when the rotational speed is higher than ∼75 per cent of the critical rotational speed, can adopt a different solution, the so-called Ω-slow solution, characterized by a dense and slow wind. Here, we study the transition region of the solutions where the fast solution changes to the Ω-slow solution. Using both time-steady and time-dependent numerical codes, we study this transition region for various equatorial models of B-type stars. In all cases, in a certain range of rotational speeds we find a region where the fast and the Ω-slow solution can coexist. We find that the type of solution obtained in this co-existence region depends stongly on the initial conditions of our models. We also test the stability of the solutions within the co-existence region by performing base-density perturbations in the wind. We find that under certain conditions, the fast solution can switch to the Ω-slow solution, or vice versa. Such solution-switching may be a possible contributor of material injected into the circumstellar environment of Be stars, without requiring rotational speeds near critical values. en
dc.format.extent 755-765 es
dc.language en es
dc.subject hydrodynamics es
dc.subject stars: early-type es
dc.subject stars: rotation es
dc.subject stars: winds, outflows es
dc.title Co-existence and switching between fast and Ω-slow wind solutions in rapidly rotating massive stars en
dc.type Articulo es
sedici.identifier.uri https://academic.oup.com/mnras/article/477/1/755/4975263 es
sedici.identifier.uri https://ri.conicet.gov.ar/handle/11336/82696 es
sedici.identifier.other http://dx.doi.org/10.1093/mnras/sty678 es
sedici.identifier.other hdl:11336/82696 es
sedici.identifier.issn 0035-8711 es
sedici.creator.person Araya, I. es
sedici.creator.person Curé, Michel es
sedici.creator.person Doula, A. ud es
sedici.creator.person Santillán, A. es
sedici.creator.person Cidale, Lydia Sonia es
sedici.subject.materias Astronomía es
sedici.description.fulltext true es
mods.originInfo.place Facultad de Ciencias Astronómicas y Geofísicas es
mods.originInfo.place Instituto de Astrofísica de La Plata es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Monthly Notices of the Royal Astronomical Society es
sedici.relation.journalVolumeAndIssue vol. 477, no. 1 es


Descargar archivos

Este ítem aparece en la(s) siguiente(s) colección(ones)

Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Excepto donde se diga explícitamente, este item se publica bajo la siguiente licencia Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)