[vsnet-chat 2887] Re: (fwd) Re: [vsnet-alert 4746] TV Col very briefbrightening (summary)

[Alon Retter <ar@astro.keele.ac.uk>]

Dear vsneters,

Mini-outbursts have been observed in the past in TV Col (Szkody & Mateo
1984; Schwartz et al. 1988; Hellier & Buckley 1993; Augusteijn et al. 
1994). They have amplitudes of about 2 mag, and a duration of less than 
a day. Mini-outbursts have been also detected in other CVs: in the
intermediate polars V1223~Sgr (van Amerongen & van Paradijs 1989); and 
EX Hya (e.g. Hellier et al. 1989; see also discussion in Hellier et al.
2000); in the intermediate polar candidate RXJ0757.0+6306 (Tovmassian et
al. 1998; Kato 1999); in AM Her systems (e.g. Warren et al. 1993), and in
a few other CVs -- SU UMa (Echevarria et al. 1996); AM CVn (Marar et al. 
1988); Nova V705 Cas 1993 (Kato 1998) and probably also in GP Com (Marsh
1995). 

They are most likely generated by mass transfer events, and are not
similar to dwarf nova outbursts. I guess that in every CV this property
would be found if it will be observed densely enough. 

Regards,
Alon
-------------------------------------------------------------------------
   Dr. Alon Retter         Tl. (work)     +44-(0)1782-58-3493  
   Physics Dept.           Fax  (work)     +44-(0)1782-711093 
   Keele University        -----------------------------------
   Staffordshire           'As a scientist I don't believe myself, so
   ST5 5BG, U.K.            why should I believe you?' (A.R. 1965-2085)
-------------------------------------------------------------------------
On Thu, 4 May 2000, Taichi Kato wrote:

> (fwd) Re: [vsnet-alert 4746] TV Col very brief brightening (summary)
> 
> Date: Wed, 03 May 2000 16:29:48 +0000
> From: Danie Overbeek <danieo@global.co.za>
> Subject: Re: [vsnet-alert 4746] TV Col very brief brightening (summary)
> 
> Amazingly rapid fade of TV Col, Rod.
> One must obviously watch it like a hawk.
> Good show!
> Danie Overbeek.
> 
>

VSNET Home Page

Return to Daisaku Nogami

---

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