Gamma-ray Burst 001105

(All information courtesy of the instrument teams.)

Previous IAU Circulars

• none

• GCN notice #874
  K. Hurley, on behalf of the Ulysses GRB team, T. Cline, on behalf of the Konus-Wind and NEAR GRB teams, and E. Mazets, and S. Golenetskii, on behalf of the KONUS-WIND GRB team, report:
  Ulysses, NEAR, and KONUS-WIND observed this GRB at 59128 seconds. As observed by Ulysses, it had a duration of approximately 30. seconds, a 25-100 keV fluence of approximately 4.6E-06 erg/cm2, and a peak flux of approximately 1.3E-06 erg/cm2 s over .25 seconds We have triangulated it to a preliminary, 3 sigma error whose approximate area is 25. sq. arcmin. and whose coordinates are:
  

      RA(2000)                              DEC(2000)
   ERROR BOX CENTER:   13 h  1 m 53.82 s     35 o 29 '  19.25 " 
   ERROR BOX CORNER 1: 13 h  2 m 27.45 s     35 o 26 '  38.15 " 
   ERROR BOX CORNER 2: 13 h  1 m 48.63 s     35 o 27 '  54.46 " 
   ERROR BOX CORNER 3: 13 h  1 m 59.00 s     35 o 30 '  44.04 " 
   ERROR BOX CORNER 4: 13 h  1 m 20.12 s     35 o 31 '  59.97 " 
  

  This error box may be improved
• GCN notice #875
  V. Mohan, Ram Sagar, S.B. Pandey (UPSO, Nainital), and A. J. Castro-Tirado, IAA-CSIC (Granada) and LAEFF-INTA (Madrid), on behalf of a larger collaboration,
  We have imaged 90% of the error box for GRB 001105 (Hurley et al., GCN 874) with the 1.0-m telescope of U.P. State Observatory, Nainital. A single R-band frame (300-s exposure time) was obtained on Nov 6.99 UT (i.e. 31 hours after the GRB). No new objects are seen within the error box when comparing to the DSS-2 (R-band), down to a limiting magnitude of R = 19.5. Deeper optical/NIR images of this "north galactic pole" burst are encouraged.
• GCN notice #876
  A. Henden (USRA/USNO) reports on behalf of the USNO GRB team:
  We have acquired BVRcIc all-sky photometry with the USNOFS 1.0-m telescope for an 11x11 arcmin field that is centered on the IPN error box (Hurley et al. GCN 874) for GRB001105. The photometric data is based on a single photometric night, but with poor seeing. Additional photometry will be acquired if an optical transient is found in this error box.
  We have placed the photometric data on our anonymous ftp site: ftp://ftp.nofs.navy.mil/pub/outgoing/aah/grb/grb001108.dat The astrometry in this file is based on linear plate solutions with respect to USNO-A2.0. The internal errors are less than 100mas.
• GCN notice #877
  The URL for the data file is incorrect in GCN 876. the correct URL is ftp://ftp.nofs.navy.mil/pub/outgoing/aah/grb/grb001105.dat we apologize for any inconvenience this may have caused.
• GCN notice #894
  J. M. Castro Ceron (ROA, San Fernando), A. J. Castro-Tirado, IAA-CSIC (Granada) and LAEFF-INTA (Madrid), A. Henden and F. Vrba, USNO (Flagstaff) J. Fliri, LMU (Muenchen) J. Greiner, AIP (Potsdam) H. Meusinger and S. Klose, TLS (Tautenburg) V. Mohan, Ram Sagar, S.B. Pandey (UPSO, Nainital), on behalf of a larger collaboration, report:
  We have obtained further imaging of 90% of the error box for GRB 001105 (Hurley et al. GCN 874), with the 1.23 and 2.2-m telescopes at the German-Spanish Calar Alto Observatory and with the 1.0-m telescope at the US Naval Observatory Flagstaff Station, thus adding to the results given by Mohan et al. (CGN 875) with the 1.0-m telescope at the U. P. State Observatory. Only the outermost eastern and western corners of the GRB error box were not covered by our images. The summary of the observations is detailed below:
  

  -----------------------------------------------------------------
     Date (UT)      Telescope    filter  exposure      limiting
     (Start)                              (sec)          mag.
  -----------------------------------------------------------------
    Nov. 06.99       1.0  UPSO     R       300           20.0
    Nov. 08.45       1.0  NOFS     R       720           20.5
    Nov. 09.19       1.23 CAHA     R      7 * 500        22.1
    Nov. 09.22       1.23 CAHA     B       600           21.5
    Nov. 09.45       1.0  NOFS     I      3 * 600        20.0
    Nov. 30.23       2.2  CAHA     R      2 * 300        22.0
  -----------------------------------------------------------------
  

  The photometric calibration was done based on the reference stars provided by Henden (GCN 876). A comparison of the different images reveals no fading object down to the limiting magnitudes given in the table.