{
  "bibcode": "2004GCN..2905....1K",
  "body": "Klotz, A., Boer M. (OHP), Atteia, J.L., and G. Stratta (LATT) report\n\nThe field of GRB 041219 (Mereghetti, et al., GCNC 2866) was observed with\nthe robotic 25 cm TAROT telescope at Calern, France.\nThe observation started 25 seconds after the GCN notice without filter. The\nfield was only 28 degrees above horizon.\n\nWe co-added 12 frames of 30s from 01:45:30 to 01:54:05 UT, i.e. while the\nGRB prompt emission was still active. The associated OT described by Blake &\nBloom (GCNC 2870) is not detected at the limiting magnitude of the image R >\n18.5.\n\nWe analyzed the 2MASS catalog to extract the galactic extinction through the\nline of sight of GRB041219. We used the method described in Klotz et al.\n(A&A 2004, vol 425, p427). From Earth to a distance modulus of about 10.5,\nthe visual extinction is Av=1.12. The 2MASS data don't allow probing farer\ndistances.\n\nThis message can be cited.",
  "circularId": 2905,
  "createdOn": 1103897683000,
  "email": "Michel.Boer@oamp.fr",
  "subject": "GRB 041219: TAROT optical observations",
  "submitter": "Michel Boer at Obs Haute Prov.  <Michel.Boer@oamp.fr>",
  "eventId": "GRB 041219"
}