ar X iv : a st ro - p h / 98 10 36 7 v 1 2 2 O ct 1 99 8 Hot Gas and Physical Structure of 30 Dor
نویسنده
چکیده
Recent ROSAT and ASCA X-ray observations as well as HST images have provided new insights into the structure and evolution of the 30 Dor nebula. I review hot gas properties of the nebula and discuss related physical processes. The structure of the nebula can be understood as outflows of hot and HII gases from the parent giant molecular cloud of R136. The dynamic mixing between the two gas phases is likely a key mass loading process of the hot gas, providing a natural explanation of both temperature and density structure of the nebula.
منابع مشابه
ar X iv : a st ro - p h / 98 11 03 1 v 1 2 N ov 1 99 8 Structure and Evolution of Hot Gas in 30 Dor
We have investigated the structure and evolution of hot gas in the 30 Dor nebula, based on recent X-ray observations. Our deep ROSAT HRI image shows that diffuse X-ray emission arises in blister-shaped regions outlined by loops of HII gas. X-ray spectroscopic data from ASCA confirm the thermal nature of the emission and indicate that hot gas temperature decreases from the core to the halo of th...
متن کاملar X iv : a st ro - p h / 98 10 42 8 v 1 2 7 O ct 1 99 8 Preliminary Analysis of STIS - HST Spectra of Compact Ejecta from Eta
We describe some preliminary results from spatially-resolved spectroscopy of the compact ejection knots B and D in the η Carinae wind. We emphasize various line diagnostics of the abundances, kinematics and physical conditions. The data are from new STIS-HST observations described by Gull et al. elsewhere in this volume.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1998