Electronic Resource
Springer
Astrophysics and space science
114 (1985), S. 351-356
ISSN:
1572-946X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract We have obtained Hα emission line profiles from R Aquarii, a Mira variable surrounded by a complex nebulosity, using a very high-resolution Fabry-Pérot spectrometer. A new feature that was seen in our observations is the fact that the line profile shows a splitting which we interpret as due to two expanding shells surrounding the star with velocities of ∼5 km s−1 and ∼15 km s−1. The expansion velocities show an acceleration outwards due perhaps to the radiation pressure caused momentum transfer. Possible periodic variation of radial velocity derived from observations is discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00653981
| Library |
Location |
Call Number |
Volume/Issue/Year |
Availability |
