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Subject: Re: [vsnet-chat 6458] Re: V589 Her not in outburst > I remember Frank Bateson did an article in an RASNZ Variable Star Section > Report on short-lived pre-outbust rises of CV's. It was some years back, > maybe 10(?). > He went through a lot of outbursts of CVs and a number of very short > outbursts > were reported visually in association with a number of these. I am sure > someone like Stan Walker could add more details. These articles are PVSS 16, 80 (1989), 17, 74 (1990), 19, 54 (1993), although I don't have an access to these issues. However, this report has been widely discussed (and sometimes referred) when interpreting the physics of dwarf nova outbursts. [It is a pity that PVSS articles are outside the free interenet access from many of amateur/professional scientists, in spite of their full of scientific information]. Knowing this information, we have been always trying to confirm such a phenomenon in well-observed dwarf novae, but have been unable to detect a very convicing case. One may remember that there was an ALEXIS alert of U Gem detectopm prior to the actual outburst, and called attention because of this particular interest. That detection was later confirmed to be a noise. There is a corresponding article on this U Gem case on the VSNET ALEXIS alert page. Regards, Taichi Kato
Return to the Daisaku Nogami
vsnet-adm@kusastro.kyoto-u.ac.jp
