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A photometric and spectroscopic study of R Coronae Borealis stars in the LMC

Published online by Cambridge University Press:  19 July 2016

W. A. Lawson ,
P. L. Cottrell  and
K. R. Pollard
W. A. Lawson
Affiliation:
Mount John University Observatory, Physics Department, University of Canterbury, Christchurch, New Zealand
P. L. Cottrell
Affiliation:
Mount John University Observatory, Physics Department, University of Canterbury, Christchurch, New Zealand
K. R. Pollard
Affiliation:
Mount John University Observatory, Physics Department, University of Canterbury, Christchurch, New Zealand

Abstract

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Over the last several years we have obtained photometric observations of the four suspected (W Men, HV 5637, HV 12671, HV 12842) R Coronae Borealis (RCB) stars in the Large Magellanic Cloud (LMC). Fourier analyses of the light curves has revealed some periodicity in HV 12842, where there appear to be at least two closely spaced periods of 55 and 60 d. High resolution spectra of HV 12842, obtained with the Ango-Australian Telescope (AAT), indicate that it has similar atmospheric properties to a number of warmer galactic RCB and hydrogen-deficient Carbon (HdC) stars, e.g. R CrB, RY Sgr and XX Cam.

Type
Stellar Evolution
Information
Symposium - International Astronomical Union , Volume 148: The Magellanic Clouds , 1991 , pp. 351 - 352
Copyright
Copyright © Kluwer 1991 

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