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Spectral classification with the International Ultraviolet Explorer : An atlas of B-type spectra

Author
Sonneborn, George
Published
Aug 1, 1993.
Physical Description
1 electronic document
Additional Creators
Rountree, Janet
Online Version

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Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
Summary
New criteria for the spectral classification of B stars in the ultraviolet show that photospheric absorption lines in the 1200-1900A wavelength region can be used to classify the spectra of B-type dwarfs, subgiants, and giants on a 2-D system consistent with the optical MK system. This atlas illustrates a large number of such spectra at the scale used for classification. These spectra provide a dense matrix of standard stars, and also show the effects of rapid stellar rotation and stellar winds on the spectra and their classification. The observational material consists of high-dispersion spectra from the International Ultraviolet Explorer archives, resampled to a resolution of 0.25 A, uniformly normalized, and plotted at 10 A/cm. The atlas should be useful for the classification of other IUE high-dispersion spectra, especially for stars that have not been observed in the optical.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19930022548.
Accession ID: 93N31737.
NAS 1.61:1312.
REPT-93B00096.
NASA-RP-1312.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15667047