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Detection of Cyclotron Lines in BL Hyi

Published online by Cambridge University Press:  25 April 2016

Lilia Ferrario ,
Dayal T. Wickramasinghe  and
Jeremy Bailey
Lilia Ferrario
Affiliation:
Astrophysical Theory Centre, School of Mathematical Sciences, Australian National University, Canberra, ACT 0200, Australia. lilia@tardis.anu.edu.au
Dayal T. Wickramasinghe
Affiliation:
Astrophysical Theory Centre, School of Mathematical Sciences, Australian National University, Canberra, ACT 0200, Australia. lilia@tardis.anu.edu.au
Jeremy Bailey
Affiliation:
Anglo-Australian Observatory, PO Box 296, Epping, NSW 2121, Australia
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Abstract

We present near-infrared spectroscopic observations over the wavelength range 0·9 to 2·5 μm of the AM Herculis system BL Hyi. During these observations, broad and resolvable cyclotron emission harmonics were visible near 1·25, 1·60 and 2·20 μm. We have interpreted these features as arising from a cyclotron emission region located near the white dwarf’s polar cap of magnetic field strength B p = 23 MG.

Keywords

accretion — binariesclose — starsindividualBL Hyi — starsmagnetic fields — cataclysmic variables — white dwarfs
Type
Gallactic and Stellar
Information
Publications of the Astronomical Society of Australia , Volume 12 , Issue 1 , April 1995 , pp. 81 - 83
Copyright
Copyright © Astronomical Society of Australia 1995

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