{
  "circularId": 4333,
  "createdOn": 1134371643000,
  "subject": "GRB 051211A and GRB051211B: BOOTES simultaneous observations",
  "eventId": "GRB 051211A",
  "editedBy": "Judith Racusin at NASA/GSFC <judith.racusin@nasa.gov> on behalf of Leo P. Singer at NASA/GSFC <leo.p.singer@nasa.gov>",
  "version": 2,
  "body": "M. Jelínek, A. J. Castro-Tirado, S. Vitek, A. de Ugarte Postigo \n(IAA-CSIC Granada),\nP. Kubánek and R. Hudec (Astronomical Institute of the Academy of \nSciences, Ondrejov), report:\n\nThe BOOTES instruments in South Spain responded to the two GRBs detected on\n11 Nov 2005. The BOOTES-2 very wide field camera located at La Mayora \n(EELM-CSIC, Málaga) observed the region of the sky containing the \nHETE-2/SXC\nerror box for GRB 051211A (Atteia et al. GCN 4324) as part of the \nroutinary observing schedule. A 30s exposure started at 2:50:00 UT (5s \nprior to the beginning of the 33s\nlong burst), i.e. overlaping with the single, hard gamma-ray peak \ndetected by HETE-2. This image sets a R = 10 upper limit to the promt \noptical flash for GRB 051211A.\n\nBOOTES-1 in El Arenosillo (INTA, Huelva), responded under non-optimal \nconditions to the GRB 051211B trigger (Mereghetti et al. GCNC 4327). A \nsequence of exposures started at 22:06:34 UT (50s after the GRB onset, \n30s after the GCN notice), i.e. overlaping for 30 s with the tail of the \ngamma-ray emission. We do no detect any transient optical emission in \nthe 2' INTEGRAL error box and in particular at the position of the \npossible afterglow reported by Klotz et al. (GCNC 4328). We set a I > 14 \nlimit to any optical emission arising simultaneusly to the gamma-rays. \nWe also notice moderate extinction in the line of sight: E(B-V) = 0.47 \nfrom the Schlegel et al. dust maps (1998).\"\n\nThis message can be quoted.\n\n[GCN OPS NOTE(16dec05): Per author's request, the duplicate text was removed.]",
  "submitter": "Alberto Castro-Tirado at Inst.de Astro. de Andalucia  <ajct@iaa.es>",
  "email": "ajct@iaa.es",
  "format": "text/plain",
  "bibcode": "2005GCN..4333....1J",
  "editedOn": 1731924500256
}