Abstract
The X-ray source H0857-242 has been optically identified by Remillard et al. (1994) with a new cataclysmic variable. An orbital period of 114 min has been proposed together with a shorter period of 49 min. Though it has been tentatively classified as an intermediate polar (IP) (hard X-ray emission, weak HeII 4686Å emission line, possible detection of the rotation of white dwarf), it differs from IPs by exhibiting frequent outbursts of 4 magnitudes. H0857-242 was observed with IUE from March 6 to 10 1992 in the context of the Whole Earth Telescope project during an outburst (de Martino et al., 1992). The source has returned in a quiescent state on March 10; the UV spectrum shows the typical emission lines seen in dwarf novae.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsReferences
de Martino, D. et al. (1992), IAU Circ. No. 5481
Drew, J. (1987), Monthly Notices Roy. Astron. Soc. 224,595
Remillard, R.A. et al. (1994), Astrophys. J. 428,785
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1995 Springer Science+Business Media Dordrecht
About this paper
Cite this paper
Alvarez, R., Mouchet, M., De Martino, D., Drew, J., Buckley, D. (1995). IUE Observations of the IP Candidate H0857-242. In: Bianchini, A., Valle, M.D., Orio, M. (eds) Cataclysmic Variables. Astrophysics and Space Science Library, vol 205. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-0335-0_31
Download citation
DOI: https://doi.org/10.1007/978-94-011-0335-0_31
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-4148-5
Online ISBN: 978-94-011-0335-0
eBook Packages: Springer Book Archive