{
  "bibcode": "2009GCN..9321....1R",
  "body": "D. A. Riechers (Caltech), F. Walter (MPIA Heidelberg), F. Bertoldi\n(AIfA Bonn), C. L. Carilli (NRAO), P. Cox (IRAM) report:\n\n\"We used the Max-Planck-Millimeter Bolometer (MAMBO-2) array at the\nIRAM 30-m telescope to observe the field of view toward the host\ngalaxy of GRB 080913 (GCN 8217) at redshift z=6.7 (GCN 8225), RA\n04:22:54.74, Dec -25:07:46.2 (J2000) at 250 GHz. Observations were\ncarried out for 3.7 hr between 2008 November 13 and 15.  We obtained a\nnon-detection of\n\n    S_nu(250 GHz,1.20 mm) = 0.34 +/- 0.45 mJy\n\n(1 sigma error), i.e. a 3 sigma upper flux density limit of 1.35 mJy\non the dust continuum in the GRB host galaxy at 1.2 mm (rest-frame 156\num). The 117-element MAMBO-2 bolometer detectors cover 210-290 GHz\n(half power). The bolometers have a FWHM beam size of 10.7 arcsec, at\na pixel spacing of 20 arcsec. Observations were carried out in ON-OFF\nobserving mode under good weather conditions. Calibrations were\nperformed on J0348-278 and J0609-157.\n\nWe acknowledge the excellent support of the staff at IRAM. IRAM is\nsupported by INSU/CNRS (France), MPG (Germany), and IGN (Spain). This\nmessage may be cited.\"",
  "circularId": 9321,
  "createdOn": 1241461008000,
  "email": "dr@caltech.edu",
  "subject": "GRB 080913: 250 GHz upper limit for a z=6.7 GRB with MAMBO-2 at the IRAM 30m",
  "submitter": "Dominik A. Riechers at Caltech  <dr@caltech.edu>",
  "eventId": "GRB 080913"
}