SIMBAD references

2021MNRAS.508.3710R - Mon. Not. R. Astron. Soc., 508, 3710-3729 (2021/December-2)

The influence of the environment on the spin evolution of low-mass stars - I. External photoevaporation of circumstellar discs.

ROQUETTE J., MATT S.P., WINTER A.J., AMARD L. and STASEVIC S.

Abstract (from CDS):

Massive stars are strong sources of far-ultraviolet radiation that can be hostile to the evolution of protoplanetary discs, driving mass-loss by external photoevaporation and shortening disc-dissipation time-scales. Their effect may also reduce the time-scale of angular momentum exchanges between the disc and host star during the early pre-main-sequence phase. To improve our understanding of the environmental influence on the rotational history of stars, we developed a model that considers the influence of the local far-ultraviolet radiation on the spin evolution of low mass stars. Our model includes an assumption of disc locking, which fixes the rotation rate during the star-disc-interaction phase, with the duration of this phase parametrized as a function of the local far-ultraviolet radiation and stellar mass (in the range of 0.1-1.3 M☉). In this way, we demonstrate how the feedback from massive stars can significantly influence the spin evolution of stars and explain the mass dependence observed in period-mass distributions of young regions like Upper Sco and NGC 2264. The high far-ultraviolet environments of high-mass stars can skew the period distribution of surrounding stars towards fast-rotation, explaining the excess of fast-rotating stars in the open cluster h Per. The proposed link between rotation and the pre-main-sequence environment opens new avenues for interpreting the rotational distributions of young stars. For example, we suggest that stellar rotation may be used as a tracer for the primordial ultraviolet irradiation for stars up to ∼1 Gyr, which offers a potential method to connect mature planetary systems to their birth environment.

Abstract Copyright: © 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): stars: evolution - stars: low-mass - stars: pre-main-sequence - stars: rotation - stars: solar-type

Simbad objects: 11

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2021MNRAS.508.3710R and select 'bookmark this link' or equivalent in the popup menu