Flare Star

We analyzed 2 years of data from TAOS I (Lehner+ 2009), accumulated during 2005 and 2006, and found three flare stars. All of them are known x-ray sources. Among the detected flare stars, 1RXS J044712.8+203809 shows three recurrences of flare events within a month. We summarize our findings with links to VizieR and to the light-curves in the table below.

Generally flare stars, and also the ones reported here, are M type dwarfs and also x-ray sources. They occasionally show a rapid increase in brightness followed by an exponential decay, which we call "flare events" (see light curves). We used the PDT (Kim+ 2008) to de-trend the light-curves because the TAOS data usually show strong trends (flux variations correlated among several stars in the field) due to a combination of weather patterns, photometry defects etc.

The links to the light-curves in the table show the combined light-curves of telescopes (telescopes A, B and D) after de-trending. To detect events, such as flare stars shown here, we used the method developed by Preston+ 2008.

[ TAOS flare events, published in ADS ]