Searching for Jet Rotation Signatures in Class 0 and I Jets [chapter]

Deirdre Coffey, Francesca Bacciotti, Antonio Chrysostomou, Brunetta Nisini, Chris Davis
2009 Astrophysics and Space Science Proceedings  
The UCD community has made this article openly available. Please share how this access benefits you. Your story matters! (@ucd_oa) Some rights reserved. For more information, please see the item record link above. 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
more » ... xis, 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. We address this problem by extending our study to 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 findings demonstrate the difficulty of conducting this study from the ground, but nevertheless provide a useful statistical addition to support the argument that we are observing jet rotation.
doi:10.1007/978-3-642-00576-3_29 fatcat:n5sjlo5jpjgwtcvftuzxck4bqe