{
  "bibcode": "2007GCN..6135....1W",
  "body": "C. Wigger, E. Bellm, M. Bandstra, S. Boggs, W. Hajdas,\nD. M. Smith, and K. Hurley on behalf of the RHESSI team report:\n\nAs observed by RHESSI, GRB070220 (M. Stamatikos et al., GCN 6114)\nhad a duration of ~30s starting at about T0=04:44:33 UT.\nA fit to the time-integrated RHESSI spectrum of the main period of\nemission from T0 - T0+18s between 30 keV and 3.0 MeV gives a\ncutoff power law, with\n\nalpha = -0.65 +0.40/-0.35\nE0 = 235 +180/-90 keV\nEpeak = 315 +115/-70 keV\n(90% confidence levels).\n\nThe 20 keV-2 MeV fluence is (1.14 +0.16/-0.12) E-5 erg/cm^2.",
  "circularId": 6135,
  "createdOn": 1172255532000,
  "email": "ebellm@ssl.berkeley.edu",
  "subject": "RHESSI Spectrum of GRB070220",
  "submitter": "Eric Bellm at UCB/SSL  <ebellm@ssl.berkeley.edu>",
  "eventId": "GRB 070220"
}