New Observational and Theoretical Insights on Cassiopeia A

Using two techniques not previously applied to Cassiopeia A (Cas A), we measure the reddening toward its expansion center. An estimate of AV from the near-IR [Fe II] lines is hampered by uncertain atomic data, though the spatial variation in their flux ratio allows relative measurement of the extinc...

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Bibliographic Details
Main Author: Eriksen, Kristoffer Albert
Other Authors: Arnett, W. David
Language:en
Published: The University of Arizona. 2009
Subjects:
Online Access:http://hdl.handle.net/10150/195729