{
  "bibcode": "2008GCN..7628....1D",
  "body": "M. De Pasquale (MSSL/UCL), A.P. Beardmore (U. Leicester) and M.\nStamatikos (GSFC) report on the behalf of the Swift team:\n\n  At 2008-04-15 14:15UT Swift performed a TOO observation of the INTEGRAL\nburst GRB 080414 (Mereghetti et al., GCN Circ. 7618), some 56.6ks after\nthe trigger.\n\n   No X-ray source was found in or near the IBAS error circle in a 3.9ks\nexposure Swift/XRT Photon Counting mode image (taken from T+56.6ks to\nT+85.5ks after the trigger) down to a 3 sigma limiting 0.3-10keV count\nrate of 3e-3 count/s. Assuming a power-law spectrum of photon index 2\nabsorbed by the Galactic column density of 1.16e22 cm^-2 in the direction\nof the burst, this corresponds to an observed 0.3-10keV flux limit of\n1.9e-13 erg cm^-2 s^-1.\n\n\n   The Swift/UVOT also observed the field. We do not detect an UV/Optical\nafterglow in the IBAS error circle in all UVOT filters down to the\nfollowing 5 sigma upper limits:\n\n   Filter  T_start  T_stop  Exp.    Mag UL (5sig)\n           (ks)     (ks)    (s)\n\n   v       56.9     79.9    272     > 18.3\n   b       56.7     79.5    272     > 19.4\n   u       56.7     84.7    326     > 19.2\n   uvw1    56.6     84.7   1001     > 19.9\n   uvm2    57.0     80.1    564     > 19.4\n   uvw2    56.8     79.8   1085     > 19.9\n\n   These upper limits are not corrected for the very large Galactic\nextinction in the line of sight to GRB 080414, corresponding to a\nreddening of E(B-V)=6.95 mag (Schlegel et al., 1998, ApJS, 500, 525). We\nnote that this value is rather uncertain in this direction.\nThe photometry is based on the UVOT photometric system described in Poole\net al. (2008, MNRAS, 383, 627).\n\n[GCN OPS NOTE(17apr08): Per author's request, the \"T+56ks to T+85.5ks\"\nwas changed to \"T+56.6ks to T+85.5ks\".]",
  "circularId": 7628,
  "createdOn": 1208437310000,
  "email": "mdp@mssl.ucl.ac.uk",
  "subject": "Swift XRT and UVOT observations of GRB080414",
  "submitter": "Massimiliano de Pasquale at MSSL-UCL  <mdp@mssl.ucl.ac.uk>",
  "eventId": "GRB 080414"
}