[vsnet-grb-info 233] Re: HETE burst

[Atsumasa YOSHIDA <ayoshida@phys.aoyama.ac.jp>]

Hi, there.

The following GRB was a so-called short GRB for which we don't know 
about their hosts, distances etc...
So, it has a big scientific importance to observe its counterpart. 
Unfortunately the accuracy of this GRB in localization is not good
due to its rather small S/N because of the shortness, while its 
peak significance is good.

# Please ignore my previous message in Japanese.

Atsu Yoshida

   .                   Atsumasa YOSHIDA          ayoshida@phys.aoyama.ac.jp
  /| ____/___ ______  Department of Physics,      
 /-|  __/__  /  /  / Aoyama Gakuin University,    
     _____  /--/--/ 6-16-1 Chitosedai, Setagaya, Tokyo 157-8572 Japan 
    /____/ /__/__/  --------------------------------------------------
                   Alt address:        Cosmic Radiantion Lab.,  RIKEN 
   2-1 Hirosawa, Wako, Saitama 351-0198;  ayoshida@crab.riken.go.jp  


At Fri, 31 May 2002 10:58:23 +0900 (JST),
Taichi Kato wrote:
> 
> Definte GRB, favorably situated:
> 
> TITLE:          GCN/HETE BURST POSITION NOTICE
> NOTICE_DATE:    Fri 31 May 02 01:54:22 UT
> NOTICE_TYPE:    HETE Ground Analysis
> TRIGGER_NUM:    2042,   Seq_Num: 3
> GRB_DATE:       12425 TJD;   151 DOY;   02/05/31
> GRB_TIME:       1578.71 SOD {00:26:18.71} UT
> TRIGGER_SOURCE: Trigger on the 25-400 keV band.
> GAMMA_RATE:     250  [cnts/s]  on a 0.020 [sec] timescale
> SC_-Z_RA:       247 [deg]
> SC_-Z_DEC:      -22 [deg]
> SC_LONG:          0 [deg East]
> WXM_CNTR_RA:    229.002d {+15h 16m 00s} (J2000),
>                 229.036d {+15h 16m 09s} (current),
>                 228.288d {+15h 13m 09s} (1950)
> WXM_CNTR_DEC:   -19.397d {-19d 23' 48"} (J2000),
>                 -19.406d {-19d 24' 20"} (current),
>                 -19.213d {-19d 12' 46"} (1950)
> WXM_MAX_SIZE:   120.00 [arcmin] diameter
> WXM_LOC_SN:     4 sig/noise (pt src in image)
> WXM_IMAGE_SN:   X= 0.0 Y= 0.0 [sig/noise]
> WXM_LC_SN:      X= 0.0 Y= 0.0 [sig/noise]
> SUN_POSTN:       67.73d {+04h 30m 56s}  +21.86d {+21d 51' 40"}
> SUN_DIST:       162.34 [deg]
> MOON_POSTN:     309.23d {+20h 36m 55s}  -22.64d {-22d 38' 35"}
> MOON_DIST:       73.97 [deg]
> MOON_ILLUM:     78 [%]
> GAL_COORDS:     343.80,31.77 [deg] galactic lon,lat of the burst
> ECL_COORDS:     231.76,-1.23 [deg] ecliptic lon,lat of the burst
> COMMENTS:       Definite GRB.
> COMMENTS:       WXM error box is circular; not rectangular.
> COMMENTS:       Burst_Validity flag is true.
> 
>

VSNET Home Page

Return to Daisaku Nogami

---

vsnet-adm@kusastro.kyoto-u.ac.jp