EDP Sciences
Free access
Volume 371, Number 2, May IV 2001
Page(s) 638 - 642
Section Formation, structure and evolution of stars
DOI http://dx.doi.org/10.1051/0004-6361:20010378

A&A 371, 638-642 (2001)
DOI: 10.1051/0004-6361:20010378

Variability in the extreme helium star LSS 5121

V. M. Woolf1, R. Aznar Cuadrado1, G. Pandey2 and C. S. Jeffery1

1  Armagh Observatory, College Hill, Armagh BT61 9DG, Northern Ireland
    e-mail: rea@star.arm.ac.uk; csj@star.arm.ac.uk
2  Department of Astronomy, University of Texas, Austin, TX 78712, USA
    e-mail: pandey@astro.as.utexas.edu

(Received 6 February 2001 / Accepted 14 March 2001 )

We report a photometric and spectroscopic study of the hot extreme helium star LSS 5121. We found photometric variability, but no period was evident in its periodogram. This is consistent with the previous proposal, based on spectral line variations, that LSS 5121 is a non-radial pulsator similar to other hot extreme helium stars.

Key words: stars: chemically peculiar -- stars: oscillations -- stars: variables -- stars: individual: LSS 5121

Offprint request: V. M. Woolf, vmw@star.arm.ac.uk

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