[Message Prev][Message Next][Thread Prev][Thread Next][Message Index][Thread Index]
[vsnet-campaign 466] RE: [vsnet-alert 5208] Outburst of S10943 Vul = RX J1953.1+2115
On 25-Aug-00 Tonny Vanmunster wrote:
>Dear colleagues,
>
>We have detected an outburst of S10943 Vul = RX J1953.1+2115, a ROSAT dwarf nova of possible UGSU type, using the
>0.35-m f/6.3 telescope and unfiltered CCD at CBA Belgium Observatory. Details :
>
>20000825.899 UT, 15.1 C
>
>S10943 Vul is discussed in IBVS 4622 (Richter et al.), in which they present an outburst analysis using archival
>plates at Sonneberg Observatory. They found a recurrence time of 83.6 days, with both short and long outbursts. They
>also found small amplitude fluctuations (about 0.2 mag), which they interpret as superhumps (hence, the expected UGSU
>classification). The superhump period is still unsure, with values of 0.1196 d, or 0.136 d, or 0.107 d. Remark that
>this is at the upper border of the period gap. There's only one UGSU dwarf nova with a longer superhump period (TU
>Men).
>
>S10943 is located at RA = 19h53m05s.0, Decl. = +214'49" (equinox J2000).
>
>We have started a time-series photometry session on this object, in an attempt to more accurately determine the
>superhump period (assuming we're observing a superoutburst). Any help from other longitudes would be appreciated,
>given the expected high superhump period value. Right now, we are viewing the real-time development of the time-series
>light curve. A first indication of a periodic modulation seems to become evident.
>
>With kind regards,
>Tonny Vanmunster
>CBA Belgium Observatory
My CCD observations of this object before the current outburst
1999-06-25 neg
1999-07-02 neg
1999-07-16 outburst
1999-07-30 outburst
1999-07-31 outburst
1999-08-01 outburst
1999-08-02 outburst
1999-08-04 outburst, fading
1999-08-06 outburst, fading
1999-08-07 outburst, fading
1999-09-03 neg
2000-05-28 neg
2000-06-01 neg
2000-06-16 neg
2000-07-21 neg
2000-07-31 neg
Regards,
Jochen Pietz
vsnet-adm@kusastro.kyoto-u.ac.jp
Return to Daisaku Nogami
vsnet-adm@kusastro.kyoto-u.ac.jp
VSNET Home Page