[Aavso-photometry] Intensive photometry of TU Cas

arne arne at aavso.org
Mon Nov 21 09:10:29 EST 2005


Michael Koppelman wrote:
> I grabbed the data from the quick look and made a little phase plot:
> 
> http://www.lolife.com/astronomy/tucas/TUCAS.png
> 
> It actually looks more coherent than I would expect from a double- mode 
> star. This is just the CCDV data.
> 
To give you an idea of what a double-mode cepheid looks like when
phased to the primary period, see:
Faulkner and Shobbrook, 1979, ApJ 232, 197
We see pieces of that in the quick-look data, but more continuous
observations would be nice.
Arne


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