Molecular gas and triggered star formation surrounding Wolf-Rayet stars

Дата и время публикации : 2012-08-25T07:52:31Z

Авторы публикации и институты :
Tie Liu
Yuefang Wu
Huawei Zhang

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: 1 page, IAUS292
Первичная категория: astro-ph.SR

Все категории : astro-ph.SR, astro-ph.GA

Краткий обзор статьи: The environments surrounding nine Wolf-Rayet stars were studied in molecular emission. Expanding shells were detected surrounding these WR stars (see left panels of Figure 1). The average masses and radii of the molecular cores surrounding these WR stars anti-correlate with the WR stellar wind velocities (middle panels of Figure 1), indicating the WR stars has great impact on their environments. The number density of Young Stellar Objects (YSOs) is enhanced in the molecular shells at $sim$5 arcmin from the central WR star (lower-right panel of Figure 1). Through detailed studies of the molecular shells and YSOs, we find strong evidences of triggered star formation in the fragmented molecular shells (cite[Liu et al. 2010]{liu_etal12}

Category: Physics