Форум @ BelAstro.Net

[astroivan]

Повторная новая в Стреле вспыхнула! Я получил письмо от профессора Андронова И.Л., цитирую:

"Бросайте все и срочно наблюдайте WZ Sge - пока во вспышке!!!

Dear Ivan,
as I was told today, WZ Sge has underwent an outburst to ~11. It is a rare event, previous ones were in 2001, 1978, 1946.

So a huge monitoring was arranged in a sense of "Japan+Europe+USA" and back to Japan.
The weather in many places in Europe is bad, but observations are very needed. Last outburst in 2001 was covered CONTINUOUSLY for 3 months; 6 nights in Greece obtained by Alexander Yushchenko were sufficient for me to discover superhumps SIMULTANEOUSLY with the dominationg orbital variability (using special mathematical technique with a complete orthogonalization of basic functions), whereas other colleagues (who used traditional methods of time series analysis) have detected this kind of variability 2 weeks later, when the star has become faint, and superhumps became dominating. After the 3-month campaign, japanese and american colleagues published two papers with all observers taking place (forgetting to include Yushchenko with his 6 nights). An analysis is important to see dynamics of decay of an accretion disk, onto which a dense cloud falled from the atmosphere of a companion - brown dwarf.

This means that it is highly important to get long time series VRVR or at least one filter.
The star is fading, it is important to start to observe it as soon as possible. There may be subsequent rebrightenings during a couple of weeks."

[SAM RIBAKOV]

тревога ложная, вспышки нет-уже проверили: www.astronomy.ru/forum/index.php/topic,108273.msg2448525/topicseen.html#new

[bigol]