[vsnet-campaign-dn 2861] RXJ0558+6753

["John R. Thorstensen" <thorsten@partita.dartmouth.edu>]

Following on to Tonny's recent announcement -- in 2002 January
I measured the spectroscopic orbital period of this object 
to be 0.1504(3) d.  The spectrum showed the strong blue
continuum of a novalike.   H-alpha had an EW of about 18 A 
and a FWHM near 12 A, relatively narrow for a CV.  The binary phase
was not covered thoroughly but the 35 radial velocities
fit a sinusoid very cleanly (sigma = 9 km/s and K = 55 km/s),
so there is no ambiguity about the period.

Best,
		John Thorstensen 

-- 
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John R. Thorstensen                     Professor of Physics
Department of Physics and Astronomy            and Astronomy
6127 Wilder Laboratory
Dartmouth College                       voice: 603-646-2869
Hanover NH 03755-3528  USA                FAX:         1446
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