[vsnet-alert 13543] SV Ari is a SU UMa type dwarf nova?

[Ohshima]

SV Ari is a SU UMa type dwarf nova?

 As reported in the past mails, SV Ari is brightning now. 
Gianluca Masi observed this object and reported that this object
was showing variations like superhumps with the period of 1.54 hours.

 According to the observed variation, the profile is not so typical of
superhumps since the brightening span and the declining span are comparable.
This might be because the superhumps had not evolved yet.
 Considering the period of superhumps, this variation is not a double
superhump (if so, this object show the 2:1 resonance in a period gap !).
However, the fact that only one superoutburst was certainly detected implies
that the outburst of this object is very rare even if this object is a
ordinary SU UMa type dwarf nova.

 Interestingly, this object was observed at 12 mag. In this outburst,
this object was detected at 15 mag and is still around 15 mag (now observing).
This difference may show that this object is an unusual dwarf nova,
or even a object other than dwarf nova.
(Considering the diference of the absolute magnitude of DN outburst 
and nova outburst, the possibility that the outburst in 1905 is nova 
outburst and this outburst is a DN outburst such as GK Per is difficult
to adopt.)

 Further observations are strongly encouraged!