Ultra-compact HII regions and massive star formation
E Churchwell - Annual Review of Astronomy and Astrophysics, 2002 - annualreviews.org
▪ Abstract This review discusses three main topics: evolution to the ultra-compact (UC) state;
the properties of UC HII regions and their environments; and UC HII regions as probes of …
the properties of UC HII regions and their environments; and UC HII regions as probes of …
[图书][B] Maser Emission Associated with Young High Mass Stars
KAE Mahmoud - 2006 - search.proquest.com
In this work the maser emission has been used to study the very early stage evolution of the
young stars. The maser emission of OH molecule was searched for towards a sample of …
young stars. The maser emission of OH molecule was searched for towards a sample of …