V893 Sco Is Not an ER UMa-Type Star

Details V893 Sco Is Not an ER UMa-Type Star V893 Sco Is Not an ER UMa-Type Star

2002-01-22

arxiv.org/abs/astro-ph/0201359v1

Astronomy and Astrophysics

Astrophysics

4 pages, 2 figures, submitted to IBVS

Scientific paper

V893 Sco is a recently rediscovered bright eclipsing dwarf nova below the period gap. Most recently, Mason et al. (2001) proposed an idea that V893 Sco is an ER UMa-type dwarf nova. From the analysis of our CCD observations and reports to VSNET, we show that V893 Sco bears no similar characters with ER UMa stars. We propose that the arguments in Mason et al. (2001), including the evolutionary status of ER UMa star as inferred from the observation of V893 Sco, need to be reconsidered.

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