[Aavso-sid-list] new SGR 0501+4516

[Rishi Patel]

Did anyone else detect an SID at around 14:42 UTC today?
I am monitoring the station at La Moure, ND at 25.2 kHz from Wiscasset, ME.

Thanks,

On Mon, Aug 25, 2008 at 7:56 AM, arne <arne at aavso.org> wrote:

> A new soft gamma-ray repeater was discovered by Swift on August 22;
> see GCN 8112, 8113. The BAT position is
>    RA(J2000)  =  05h 01m 04s
>    Dec(J2000) = +45d 16' 20"
> with an error radius of 3arcmin.
> A later observation (ATEL 1676) using the XRT X-ray telescope onboard
> SWIFT gives a more precise position from the SGR afterglow:
>   RA(J2000)  = 05h 01m 6.78s
>   Dec(J2000) = +45d 16' 34.0"
> with an error radius of 2.6arcsec (90% containment).
>
> it is nicely positioned in the sky,
> and has been bursting over a hundred times in the past few days.
> One large flare was seen at 11:27:35UT on August 23.
> Denis Denisenko (GCN8114) suggests that an optically variable
> object at
> RA (J2000.0) = 05 01 06.47
> Dec (J2000.0) = +45 16 28.0
> at about V=17, might be the optical counterpart, but I think the
> jury is still out on that one - no other SGR has a bright counterpart.
> Still, Jules Halpern monitored the variable (GCN 8129), and found
> that it was constant at R=17.16 for the first hour and then
> declined monotonically to R=17.35 over the next hour.
>
> Like previous SGRs, this one could have a super-outburst at any
> time, and be observable by the SID group.  Right now, it would
> be hard to correlate any particular burst with a SID event since
> there are so many of them, but keep an eye open and report anything
> unusual to this group.  I'll let you know if a giant pulse is
> reported.
> Arne
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-- 
Rishi
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