[vsnet-alert 953] V844 Her = Var43 Her

[Joe Patterson <jop@astro.columbia.edu>]

     V844 Herculis (= Var43 Her) continues to show strong superhumps
during its current superoutburst.  Merged coverage from 5 CBA stations
shows a principal period of 0.05602+-0.00011 d during May 25-31.  Very
short.  Very complex too: large wiggles in the O-C and variability in
the waveform suggest the possibility of another signal closely spaced
in period.  Fourier analysis yields a second period at 0.05534+-0.00010
d, but this must be regarded with caution as power-spectrum structure
can also be produced by mere amplitude changes (if strong enough).

     Second period or no, the star is of very high interest, and we
earnestly seek help from other observers able to obtain time-series
photometry, in order to produce the best sampling of this remarkable
light curve.  We expect to be watching the star throughout June.


The CBA team, so far:

Joe Patterson (New York) (jop@astro.columbia.edu, 802-425-5008)
Tonny Vanmunster (Belgium)
Lasse Jensen (Denmark)
Dave Skillman (Maryland)
Dave Harvey (Arizona-Tucson)
Bob Fried (Arizona-Flagstaff)

VSNET Home Page

Return to Daisaku Nogami

---

vsnet-adm@kusastro.kyoto-u.ac.jp