A 110 MG cyclotron harmonic in the optical spectrum of RX J1554.2+2721

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dc.creatorSchwope, A. D.
dc.creatorSchreiber, M. R.
dc.creatorSzkody, P.
dc.date2006-03-03
dc.date.accessioned2026-07-07T11:25:19Z
dc.date.available2026-07-07T11:25:19Z
dc.descriptionWe report the detection of a 110 MG cyclotron harmonic in the SDSS-spectrum of the magnetic cataclysmic variable (MCV) RX J1554.2+2721. This feature was noted earlier by others but remained unexplained. The wide spectral coverage of the new spectrum together with the earlier detection of a Zeeman split Ly-a line in a field of 144 MG makes the identification almost unambiguous. We propose to explain the non-conforming UV-optical photospheric temperature of the white dwarf by an as yet unobserved cyclotron component in the ultraviolet which also could significantly contribute to the overall energy balance of the accretion process.
dc.description4 pages, 3 figures, accepted for A&A
dc.identifierhttps://arxiv.org/abs/astro-ph/0603087
dc.identifierhttp://arxiv.org/abs/astro-ph/0603087
dc.identifierAstron.Astrophys.452:955-958,2006
dc.identifierdoi:10.1051/0004-6361:20054748
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/195473
dc.subjectAstrophysics
dc.titleA 110 MG cyclotron harmonic in the optical spectrum of RX J1554.2+2721
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