Hostname: page-component-8448b6f56d-42gr6 Total loading time: 0 Render date: 2024-04-23T22:59:48.347Z Has data issue: false hasContentIssue false

Detection of Cyclotron Lines in BL Hyi

Published online by Cambridge University Press:  25 April 2016

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

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 Bp = 23 MG.

Type
Gallactic and Stellar
Copyright
Copyright © Astronomical Society of Australia 1995

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Allen, D. A., et al. 1993, PASA, 10, 4, 298 Google Scholar
Bailey, J. A., Ferrario, L., & Wickramasinghe, D. T. 1991, MNRAS, 251, 37pGoogle Scholar
Ferrario, L., & Wickramasinghe, D. T. 1990, ApJ, 357, 582 Google Scholar
Ferrario, L., Bailey, J. A., & Wickramasinghe, D. T. 1993, MNRAS, 262, 285 Google Scholar
Piirola, V., Reiz, A., & Coyne, G. V. 1987, A&A, 185, 189 Google Scholar
Wickramasinghe, D. T. 1989, in Polarized Radiation of Circumstellar Origin, eds Coyne, G. V. et al. (Vatican City: Vatican Press), 3 Google Scholar
Wickramasinghe, D. T., & Ferrano, L. 1988, ApJ, 334, 412 Google Scholar
Wickramasinghe, D. T., Visvanathan, N., & Tuohy, I. R. 1984, ApJ, 286, 328 Google Scholar