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Searching for Jet Rotation Signatures in Class 0 and I Jets
Alternative Title
Searching for Jet Rotation Signatures in Class 0 and I Jets - Strengthening the Observational Support for Magnetocentrifugal Ejection
Date Issued
2009-08-06
Date Available
2019-10-18T13:32:05Z
Abstract
In recent years, there has been a number of detections of asymmetries in the radial velocity profile across jets from young stars. The significance of these results is considerable. They may be interpreted as a signature of jet rotation about its symmetry axis, thereby representing the only existing observational indications supporting the theory that jets extract angular momentum from star-disk systems. However, the possibility that we are indeed observing jet rotation in pre-main sequence systems is undergoing active debate. To test the validity of a rotation argument, we must extend the survey to a larger sample, including younger sources. We present the latest results of a radial velocity analysis on jets from Class 0 and I sources, using high resolution data from the infrared spectrograph GNIRS on GEMINI South. These observations demonstrate the difficulty of conducting this study from the ground, and highlight the necessity for high angular resolution via adaptive optics or space-based facilities.
Sponsorship
European Commission
Type of Material
Conference Publication
Publisher
Springer
Series
Astrophysics and Space Science Proceedings book series (ASSSP)
Copyright (Published Version)
2009 Springer
Web versions
Language
English
Status of Item
Peer reviewed
Part of
Tsinganos, K., Ray, T., Stute, M. Protostellar Jets in Context
Conference Details
Protostellar Jets in Context, Rhodes, Greece, 7-12 July 2008
ISBN
9783642005756
ISSN
1570-6591
This item is made available under a Creative Commons License
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