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Title:
Mid-Infrared Visibility Measurements of Evolved Stars
Authors:
Sudol, J. J.; Dyck, H. M.; Stencel, R. E.; Klebe, D. I.; Creech-Eakman, M. J.
Affiliation:
AA(Department of Physics and Astronomy, University of Wyoming, P.O. Box 3905, Laramie, WY 82071), AB(Department of Physics and Astronomy, University of Wyoming, P.O. Box 3905, Laramie, WY 82071), AC(Department of Physics and Astronomy, Denver University, 2112 East Wesley Avenue, Room 212, Denver, CO 80208-0202), AD(Department of Physics and Astronomy, Denver University, 2112 East Wesley Avenue, Room 212, Denver, CO 80208-0202), AE(Department of Physics and Astronomy, Denver University, 2112 East Wesley Avenue, Room 212, Denver, CO 80208-0202)
Publication:
The Astronomical Journal, Volume 117, Issue 3, pp. 1609-1615. (AJ Homepage)
Publication Date:
03/1999
Origin:
AJ
AJ Keywords:
STARS: CIRCUMSTELLAR MATTER, STARS: AGB AND POST-AGB, STARS: MASS LOSS
DOI:
10.1086/300772
Bibliographic Code:
1999AJ....117.1609S

Abstract

We have used Denver University's Ten-and-Twenty Micron Camera at the Wyoming Infrared Observatory to image 12 evolved stars at 11.5 mum. We have obtained both visibility data and photometric magnitudes from these images. We have partially resolved the circumstellar dust shell for eight of these 12 stars: alpha Ori, VY CMa, IRC +10216, chi Cyg, IK Tau, NML Cyg, mu Cep, and IRC +10420. We compare our data to published data and to visibility curves predicted by radiative transfer models in the literature.
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