NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Bipolar Ejection of Matter from Hot StarsA general program on the internal velocities in H II regions was carried out within the past decade by the use of photographic Fabry-Perot interferometry, in the H (alpha) line and lately also in the N IIlambda 6584 line. Among the score of objects studied three H II regions and one planetary nebula possess pronounced symmetry around their ionizing stars. Velocity data combined with morphological properties suggest strongly that the nebulae were formed essentially by matter ejected from the central star and that ejection occurred preferentially from diametrially opposite regions on the star, that is, in a bi-polar fashion. The nebulae are discussed individually and a model for the ejection mechanism is presented.
Document ID
19850009458
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Pismis, P.
(Universidad Nacional Autonoma de Mexico Mexico City, Mexico)
Date Acquired
August 12, 2013
Publication Date
January 1, 1985
Publication Information
Publication: NASA. Goddard Space Flight Center The Origin of Nonradiative Heating(Momentum in Hot Stars
Subject Category
Astrophysics
Accession Number
85N17767
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Document Inquiry

Available Downloads

There are no available downloads for this record.
No Preview Available