Astronomy and Astrophysics – Astronomy
Scientific paper
May 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aas...212.1207m&link_type=abstract
American Astronomical Society, AAS Meeting #212, #12.07; Bulletin of the American Astronomical Society, Vol. 40, p.205
Astronomy and Astrophysics
Astronomy
Scientific paper
Theoretical developments and observations of long period variables suggest there may be a relationship between the kinematics of the circumstellar region and stellar phase. In order to test this relation, the silicon monoxide maser spectra of R Cassiopeia from 1984 to 2006 were acquired and statistically examined. The velocity centroids of the spectra have been determined and correlated with the flux densities. Analysis of spectra acquired at Haystack Observatory during 2003 - 2006 revealed no statistically significant correlations between the integrated flux density and the velocity centroids. To further investigate possible correlations, the data set has been supplemented using spectra acquired at the Centro Astronomico de Yebes between 1984 and 1995 ( Pardo et al. 2004, A&A, 424, 145). Interpretation and results from the statistical analysis of the entire data set will be presented. This research has been supported by NSF Grant AST-0606764.
Lehner B.
McIntosh Gordon C.
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