[vsnet-alert 14602] Re: HW Boo outburst

[Gary Poyner]

> HW Boo outburst
>
>    This likely SU UMa-type dwarf nova (=HS1340+1524) is reported to be 
> in outburst.  Porb = 92.66m (A&A 455, 659).

>>   According to Mike Simonsen, this is a false detection.



I can confirm Eric's outburst detection of HW Boo...

May 13.181   17.33V
    14.308   16.27V
    17.019   14.72V

AAVSO-net SRO-50 telescope.

The light curve for HW Boo resembles that of an IP rather than a UGSU
(quite like DO Dra in fact).  Very short duration outbursts and 
a highly variable quiescence.  The Porb is rather short, but it's
not unique for an IP to have a short orbital period.

regards,
Gary


---------------------------------------------------------------------
Gary Poyner FRAS
www.variablestars.co.uk


> -----Original Message-----
> From: vsnet-alert-bounces at ooruri.kusastro.kyoto-u.ac.jp [mailto:vsnet-
> alert-bounces at ooruri.kusastro.kyoto-u.ac.jp] On Behalf Of Taichi Kato
> Sent: 18 May 2012 01:21
> To: suuma at yahoogroups.com; variable_star_forum at yahoogroups.com; vsnet-
> alert at ooruri.kusastro.kyoto-u.ac.jp; vsnet-alert at yahoogroups.com; vsnet-
> campaign-dn at ooruri.kusastro.kyoto-u.ac.jp; vsnet-
> outburst at ooruri.kusastro.kyoto-u.ac.jp; vsnet-outburst at yahoogroups.com
> Subject: [vsnet-alert 14600] HW Boo outburst
> 
> HW Boo outburst
> 
>    This likely SU UMa-type dwarf nova (=HS1340+1524) is reported to be
> in outburst.  Porb = 92.66m (A&A 455, 659).
> 
>   YYYYMMDD(UT)   mag  observer
>   20120511.234  <149  (Mike Simonsen)
>   20120511.949  <154  (Gary Poyner)
>   20120512.965  <154  (Gary Poyner)
>   20120514.279  <149  (Mike Simonsen)
>   20120515.212  <144  (Mike Simonsen)
>   20120515.951  <154  (Gary Poyner)
>   20120516.990  145C  (Eric Morillon)
>   20120517.165  <151  (Mike Simonsen)