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J/other/PZ/31.3 Two new cataclysmic variables in Lyra (Denisenko+, 2011)
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Beginning of ReadMe :J/other/PZ/31.3 Two new cataclysmic variables in Lyra (Denisenko+, 2011)
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Two new cataclysmic variables in Lyra.
Denisenko D.V.
<Perem. Zvezdy, 31, 3 (2011)>
=2011PZ.....31....3D
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ADC_Keywords: Stars, variable ; Binaries, cataclysmic ; Photometry
Abstract:
I report on the discovery of two cataclysmic variables in the same
field in Lyra, originally identified on the base of their magnitudes
in the USNO-B1.0 catalog and on Palomar images. The historical light
curves were analyzed from 300+ photographic plates of the Moscow
collection, covering 35 years of observations. One of the two stars,
USNO-B1.0 1320-0390658, is showing rather frequent outbursts from B 20
to B=15.2 and is likely a dwarf nova of the UGSS subtype. The other
variable, USNO-B1.0 1321-0397655, with only one observed outburst in
1993, from B 19 to I=11.8, is either an UGWZ dwarf nova or a recurrent
nova. In both cases, its next outburst can occur in the nearest
future.
Objects:
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RA (2000) DE Designation(s)
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19 21 44.23 +42 04 41.8 DDE 20 = USNO-B1.0 1320-00390658
19 21 48.93 +42 09 46.6 DDE 21 = USNO-B1.0 1321-00397655
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