{
  "bibcode": "2007GCN..6343....1M",
  "body": "D. Malesani (DARK/NBI), E. Rol (Univ. Leicester), L. A. Antonelli\n(INAF/OAR), J.P.U. Fynbo (DARK/NBI), P.A. Curran (UVA), K. Wiersema (UVA),\nA.J. Levan (Univ. Warwick), N.R. Tanvir (Univ. Leicester), V. Testa\n(INAF/OAR), E. Palazzi (INAF/IASF Bo), A.O. Jaunsen (Univ. Oslo), C.C.\nThoene (DARK/NBI), J. Hjorth (DARK/NBI), P.M. Vreeswijk (ESO), report:\n\nWe have observed the optical afterglow of GRB 070411 (Moretti et al., GCN\n6267), using the NOT, VLT, TNG, and WHT telescopes, in the R band.\n\nObservations were carried out at several epochs, between 0.04 and 8 days\nafter the burst. Analysis of the light curve reveals a clear steepening at\n~1 day after the GRB. The late-time slope alpha ~ 1.4 is well constrained\nby our measurements (see also Ferrero et al., GCN 6319), and has a value\nflatter than expected from post-jet break models (alpha >~ 2).\n\nWe encourage observations at X-ray wavelengths to test for the presence of\nany break in the X-ray light curve.\n\nWe acknowledge support from the observers and the staff at the NOT, VLT,\nTNG, and WHT telescopes.",
  "circularId": 6343,
  "createdOn": 1177340944000,
  "email": "malesani@astro.ku.dk",
  "subject": "GRB 070411: break in the optical light curve",
  "submitter": "Daniele Malesani at Niels Bohr Inst,Dark Cosmology Center  <malesani@astro.ku.dk>",
  "eventId": "GRB 070411"
}