Gamma-ray Burst 040709

(All information courtesy of the instrument teams.)

Previous IAU Circulars

• none

• GCN/BACODINE POSITION NOTICE
  

  
  TITLE:          GCN/HETE BURST POSITION NOTICE
  NOTICE_DATE:    Fri 09 Jul 04 02:20:01 UT
  NOTICE_TYPE:    HETE Ground Analysis
  TRIGGER_NUM:    11549,   Seq_Num: 1
  GRB_DATE:       13195 TJD;   191 DOY;   04/07/09
  GRB_TIME:       3487.96 SOD {00:58:07.96} UT
  TRIGGER_SOURCE: Trigger on the 25-400 keV band.
  SC_-Z_RA:       108 [deg]
  SC_-Z_DEC:       22 [deg]
  SC_LONG:         68 [deg East]
  WXM_CNTR_RA:    305.510d {+20h 22m 02s} (J2000),
                  305.579d {+20h 22m 19s} (current),
                  304.745d {+20h 18m 59s} (1950)
  WXM_CNTR_DEC:   -28.588d {-28d 35' 16"} (J2000),
                  -28.573d {-28d 34' 23"} (current),
                  -28.748d {-28d 44' 53"} (1950)
  WXM_MAX_SIZE:   1000.00 [arcmin] diameter
  WXM_LOC_SN:     40 sig/noise (pt src in image)
  WXM_IMAGE_SN:   X= 22.0 Y= 25.5 [sig/noise]
  WXM_LC_SN:      X= 20.0 Y= 25.5 [sig/noise]
  SUN_POSTN:      108.61d {+07h 14m 26s}  +22.34d {+22d 20' 09"}
  SUN_DIST:       163.48 [deg]
  MOON_POSTN:      13.82d {+00h 55m 16s}   +3.52d {+03d 31' 11"}
  MOON_DIST:       72.81 [deg]
  MOON_ILLUM:     53 [%]
  GAL_COORDS:     14.40,-31.28 [deg] galactic lon,lat of the burst
  ECL_COORDS:     301.08,-8.90 [deg] ecliptic lon,lat of the burst
  COMMENTS:       HETE Message.  
  COMMENTS:       Definite GRB  
  COMMENTS:       WXM data refined since S/C_Last Notice.  
  COMMENTS:       WXM error box is circular; not rectangular.  
  COMMENTS:       Burst_Validity flag is true  
  COMMENTS:       Long, bright burst detected while star cameras were  
  COMMENTS:       disabled.  Reduction of error region size possible.  
  

• GCN/BACODINE POSITION NOTICE
  

  TITLE:          GCN/HETE BURST POSITION NOTICE
  NOTICE_DATE:    Fri 09 Jul 04 02:59:17 UT 
  NOTICE_TYPE:    HETE Ground Analysis
  TRIGGER_NUM:    11549,   Seq_Num: 2
  GRB_DATE:       13195 TJD;   191 DOY;   04/07/09
  GRB_TIME:       3487.96 SOD {00:58:07.96} UT
  TRIGGER_SOURCE: Trigger on the 25-400 keV band.
  SC_-Z_RA:       108 [deg] 
  SC_-Z_DEC:       22 [deg]
  SC_LONG:         68 [deg East] 
  WXM_CNTR_RA:    313.471d {+20h 53m 53s} (J2000),
                  313.539d {+20h 54m 09s} (current),
                  312.721d {+20h 50m 53s} (1950)  
  WXM_CNTR_DEC:   -28.225d {-28d 13' 29"} (J2000),
                  -28.208d {-28d 12' 27"} (current),
                  -28.415d {-28d 24' 54"} (1950)
  WXM_CORNER1:    311.6668 -28.2280 [deg]
  WXM_CORNER2:    314.9408 -29.1409 [deg]
  WXM_CORNER3:    315.2599 -28.2250 [deg]
  WXM_CORNER4:    312.0169 -27.3060 [deg]
  WXM_MAX_SIZE:   189.90 [arcmin] diameter
  WXM_LOC_SN:     40 sig/noise (pt src in image)
  WXM_IMAGE_SN:   X= 22.0 Y= 25.5 [sig/noise]
  WXM_LC_SN:      X= 20.0 Y= 25.5 [sig/noise]
  SUN_POSTN:      108.61d {+07h 14m 26s}  +22.34d {+22d 20' 09"}
  SUN_DIST:       156.75 [deg]
  MOON_POSTN:      13.82d {+00h 55m 16s}   +3.52d {+03d 31' 11"}
  MOON_DIST:       65.98 [deg]
  MOON_ILLUM:     53 [%]
  GAL_COORDS:     17.01,-37.95 [deg] galactic lon,lat of the burst
  ECL_COORDS:     308.04,-10.34 [deg] ecliptic lon,lat of the burst
  COMMENTS:       HETE Message.
  COMMENTS:       Definite GRB
  COMMENTS:       WXM data refined since S/C_Last Notice.
  COMMENTS:       Burst_Validity flag is true
  COMMENTS:       Very bright, long GRB detected while star cameras
  COMMENTS:       were disabled.
  

• GCN notice #2624
  B. A. Peterson (Australian National University, RSAA, Mt. Stromlo) S. Oyabu, and Y. Hamada (University of Tokyo, Institute for Astronomy)
  report:
  Starting at about UT 2004/07/09 12:45 (JD 2453196.0312) we obtained a series of J and H-band images covering 2 x 2 arcmin with the ANU 2.3m telescope at Siding Spring Observatory (E Long 149:03:39.8, S Lat 31:16:23.5). The images are centered on 20:53:53.0 -28:13:29 J2000 (GRB040709, HETE trigger 11549 at UT 2004/07/09 00:58:07.96, JD 2453195.54037).
  Comparison of our J, H images with the STScI DSS (B, R, and IR UKST plate scans from http://archive.stsci.edu/cgi-bin/dss_form reveals objects in the J, H images beyond the limit of the DSS. We plan to obtain J, H images at a second epoch in order to identify the GRB with a variable object declining in intensity.
  Our images may be downloaded from the URL http://www.mso.anu.edu.au/~peterson/GRB040709 When using our images, please cite this GCN and URL.