Classification of N-type carbon stars
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Authors
Bollwerk, William Val.
Subjects
Carbon Stars
Spectrophotometry
N-type Stars
Equivalent Width
Reticon
Red Giants
Swan Band
Spectrophotometry
N-type Stars
Equivalent Width
Reticon
Red Giants
Swan Band
Advisors
Irvine, Cynthia E.
Date of Issue
1986-06
Date
Publisher
Language
en_US
Abstract
Low resolution spectrophotometry has been used to
examine the relationship between spectral class and
effective temperatures in a sample of eleven cool carbon
stars
.
Using effective temperatures from lunar occultation
observations of Tsuji and Ridgeway et al , CN and C2
features have been examined for their utility as classification
criteria. It is found that C2 strength is not a
reliable temperature classification parameter, while CN
should be useful. Comparison of the carbon star classification systems of
Keenan and Morgan and that of Richer with recently derived
temperatures and the results of this study indicates that
the Richer classification system more accurately reflects
the temperatures of cool carbon stars.
Type
Thesis
Description
Series/Report No
Department
Organization
Identifiers
NPS Report Number
Sponsors
Funder
Format
74 p.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.