IUE and Optical Spectra of AL Comae Berenices During a Rare Superoutburst
Author
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Szkody, P.
Author
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Silber, Andrew
Author
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Sion, Ed
Author
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Downes, Ronald A.
Author
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Howell, Steve B.
Author
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Costa Hechenleitner, Edgardo
Author
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Moreno, H.
Admission date
dc.date.accessioned
2014-01-08T17:14:34Z
Available date
dc.date.available
2014-01-08T17:14:34Z
Publication date
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1996-06
Cita de ítem
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Astronomical Journal v.111, 6. June 1996
en_US
Identifier
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https://repositorio.uchile.cl/handle/2250/126066
General note
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Artículo de publicación ISI
en_US
Abstract
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We present optical spectra from 3 to 21 days and lUE spectra at 10 and 19 days following the outburst of the extreme amplitude, very short orbital period cataclysmic variable AL Corn after a 20 yr quiescent interval. The lUE spectra have no evidence of P Cyg profiles and show an early presence of Lyα absorption, which may be indicative of a 25,000 K white dwarf. The optical spectra show only weak Balmer absorption throughout this interval, with no dramatic changes within the 3 weeks. The spectra are compared to those available for the few other systems that had similar long outbursts following a long quiescence (WZ Sge, WX Cet, SW UMa).