High-velocity clouds: a diverse phenomenon

Дата и время публикации : 2001-09-13T21:34:59Z

Авторы публикации и институты :
B. P. Wakker

Оригинал статьи :http://arxiv.org/abs/astro-ph/0109210v1

Скачать pdf : http://arxiv.org/pdf/astro-ph/0109210v1

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к статье: 6 pages, contribution to 17th IAP Colloquium: Gaseous matter in galaxies and intergalactic space
Первичная категория: astro-ph

Все категории : astro-ph

Краткий обзор статьи: In this contribution the current state of knowledge about the high-velocity clouds (HVCs) is summarized. Recent progress has shown that the HVCs are a diverse phenomenon. The intermediate-velocity clouds (IVCs) are likely to be part of a Galactic Fountain. The Magellanic Stream is a tidal remnant. HVC complex C (possibly complexes A and GCN) are low-metallicity clouds near the Galaxy; they could be remnants of the formation of the Galaxy or old tidal streams extracted from nearby dwarf galaxies. Having a substantial number of HI HVCs dispersed throughout the Local Group seems incompatible with the observed HI mass function of galaxies. Finally, FUSE finds high-velocity OVI, some of which is clearly associated with HI HVCs, but some which is not.

Category: Physics