[vsnet-chat 4607] Re: [vsnet-campaign-xray 74] V818 Sco (Sco X-1) extremely active!

[erik kuulkers <erikk@sron.nl>]

Hello,

Sco X-1 is known to be flaring on timecales of hours. Such flares can be
huge, especially in X-rays. The latest ASM light curve of Sco X-1 is
at http://heasarc.gsfc.nasa.gov/cgi-bin/xte_weather/xte_lc?source=SCOX1.
RXTE mission day 2749 corresponds to july 12 2001. A huge X-ray flare
around the time of the optical observation can be seen. It is known that  
X-rays and optical correlate well during such flares. 

Cheers,

Erik

On Fri, 13 Jul 2001, Taichi Kato wrote:

> V818 Sco (Sco X-1) extremely active!
> 
>   YYYYMMDD(UT)   mag  observer
>   20010510.758   127  (B. Monard)
>   20010511.767   127  (B. Monard)
>   20010512.788   127  (B. Monard)
>   20010513.816   126  (B. Monard)
>   20010514.772   127  (B. Monard)
>   20010515.774   127  (B. Monard)
>   20010517.767   127  (B. Monard)
>   20010518.794   127  (B. Monard)
>   20010519.769   127  (B. Monard)
>   20010520.753   128  (B. Monard)
>   20010521.738   128  (B. Monard)
>   20010523.783   127  (B. Monard)
>   20010525.769   129  (B. Monard)
>   20010526.732   128  (B. Monard)
>   20010527.756   126  (B. Monard)
>   20010529.791   127  (B. Monard)
>   20010530.951   122  (B. Monard)
>   20010608.732   127  (B. Monard)
>   20010609.740   135  (B. Monard)
>   20010610.728   126  (B. Monard)
>   20010612.766   127  (B. Monard)
>   20010613.785   130  (B. Monard)
>   20010615.737   128  (B. Monard)
>   20010616.764   127  (B. Monard)
>   20010618.756   128  (B. Monard)
>   20010619.716   128  (B. Monard)
>   20010620.688   128  (B. Monard)
>   20010621.725   134  (B. Monard)
>   20010622.760   134  (B. Monard)
>   20010623.741   133  (B. Monard)
>   20010625.694   134  (B. Monard)
>   20010628.006   127  (B. Monard)
>   20010628.722   127  (B. Monard)
>   20010630.694   127  (B. Monard)
>   20010703.467  <114  (P. Nelson)
>   20010704.419   120: (P. Nelson)
>   20010708.739   123  (B. Monard)
>   20010711.812   120  (B. Monard)
>   20010712.544   116  (P. Nelson)
> 
>

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