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Photometric and Spectroscopic Variability of the Hydrogen-Deficient Binary CPD-58°2721

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Hydrogen Deficient Stars and Related Objects

Part of the book series: Astrophysics and Space Science Library ((ASSL,volume 128))

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Abstract

The hydrogen-deficient star CPD-58°2721 (=LSS1922) has been observed to show radial velocity variations with a range of 140 km s-1. It shows light and colour variations with amplitudes of 0τ07 on a timescale of about 9 days. The absorption spectrum is nitrogen-rich and is seen to vary on a short timescale (4 days). CPD-58°2721 therefore appears to be a hydrogen-deficient binary similar to KS Per and νSgr. The photometric variability is attributed to radial pulsation.

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Author information

Authors and Affiliations

  1. University Observatory, Buchanan Gardens, St Andrews, Fife, KY16 9LZ, Scotland

    K. Morrison, P. W. Hill & C. S. Jeffery

  2. Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA, 70803-4001, USA

    J. S. Drilling

  3. Institut für Theoretische Physik und Sternwarte der Universität, Olshausenstrasse 40, D-2300, Kiel, Federal Republic of Germany

    U. Heber

Authors
  1. K. Morrison
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  2. J. S. Drilling
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  3. U. Heber
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  4. P. W. Hill
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  5. C. S. Jeffery
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Editor information

Editors and Affiliations

  1. Institute for Theoretical Physics and Observatory, University of Kiel, Germany

    Kurt Hunger  & Detlef Schönberner  & 

  2. Indian Institute of Astrophysics, Bangalore, India

    N. Kameswara Rao

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© 1986 D. Reidel Publishing Company

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Morrison, K., Drilling, J.S., Heber, U., Hill, P.W., Jeffery, C.S. (1986). Photometric and Spectroscopic Variability of the Hydrogen-Deficient Binary CPD-58°2721. In: Hunger, K., Schönberner, D., Rao, N.K. (eds) Hydrogen Deficient Stars and Related Objects. Astrophysics and Space Science Library, vol 128. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4744-3_29

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  • DOI: https://doi.org/10.1007/978-94-009-4744-3_29

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-8608-0

  • Online ISBN: 978-94-009-4744-3

  • eBook Packages: Springer Book Archive

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