[vsnet-campaign-news 299] VSNET Weekly Campaign Summary

[Makoto Uemura]

VSNET Weekly Campaign Summary

*** Headlines ***

W. Liller discovered a nova! ----- Nova LMC 2005
WZ Sge star in superoutburst! ----- DV Dra
Very close to the period minimum! ----- TSS J022216.4+412260

*** Last week news ***

(new targets) 
  Nova LMC 2005           (RA = 05h10m33s.79, Dec = -69d12'35".2)

    W. Liller discovered a possible nova in LMC.  The new object was
  about 11.5 mag on his films taken on Nov 26.  It seems to be present
  also on films on Nov 22 (12.8: mag), and fainter than 13mag on
  Nov. 20 (vsnet-campaign-nova 1777).  A. Amorim confirmed the object 
  at 11.9mag on Nov. 27 (vsnet-alert 8764).  According to IAUC 8635, 
  the object was confirmed to be a nova by spectroscopic observations
  at Cerro Tololo.  


  MisV0814                (RA = 05h33m33s.81, Dec = +34d43'23".7)

    Observations by K. Nakajima showed that a peculiar variable
  MisV0814 is now fading.  It was around 14.1-14.2 mag on Nov. 26 and
  27.  S. Yoshida reported that, during the last fading event in 2004 
  March, the object apparently showed rapid variations; two or three 
  short brightenings of ~0.4 mag within several minutes 
  (vsnet-alert 8765).


(old targets)
  TSS J022216.4+412260    (RA = 02h22m16s.4, Dec = +41d22'59".9)

    A. Imada and K. Kubota (Kyoto Univ.) reported the detection of
  periodic modulations with a period of 0.057(2) days.  If this is a
  superhump period, it is one of the shortest periods among SU UMa
  stars including WZ Sge stars (vsnet-alert 8756, 8758).  
    Using the combined data sets on Nov 23, 24, 25, and 26, they 
  reported the best period of 0.0553(8) d.  On the other hand, another
  period of 0.0538(1) d was found in earlier light curves on Nov. 20,
  21, and 22. If the former period is the superhump period, this is
  the shortest record among SU/WZ stars (except EI Psc and V485 Cen).  
  The origin of the latter period is unclear (vsnet-alert 8761, 8763).


  DV Dra                  (RA = 18h17m23s.10, Dec = +50d48'18".1)

    On Nov. 22, T. Vanmunster performed time-series observations 
  of DV Dra, which detected the presence of early superhumps.  
  This observation revealed that DV Dra is a WZ Sge-class object, 
  as suspected before (vsnet-campaign 1633, vsnet-campaign-dn 4574).


*** Future schedule ***

  Optical Campaign for Outbursts of Southern Intermediate Polars
    --- Prompt Spectroscopy with Cerro Tololo 1.5-m Telescope ---
    ***** August - December 2005 *****
    For detailed information, see:
      http://home.hiroshima-u.ac.jp/~uemuram/ipoutburst2005/index.html
                                        [vsnet-campaign-ip 121, 122]


*** General information ***

  Nova LMC 2005
    Sequence presented in VSM 151, see [vsnet-alert 8761]

  MisV0814
    MISAO page:
     http://www.aerith.net/misao/report/variable/MisV0814.html
                                        [vsnet-alert 8765]

 
(This summary can be cited.)	

Regards,
Makoto Uemura
Hiroshima University