{
  "bibcode": "2022GCN.32676....1D",
  "body": "A. de Ugarte Postigo (OCA), Michael Bremer (IRAM),\nC. C. Thoene (ASU-CAS), M. Michalowski (AOI-AMU)\nK. Misra (ARIES), S. Antier (OCA), D. A. Kann (Goethe \nUniv.), J. F. Agui Fernandez (IAA-CSIC), L. Resmi (IIST), \nS. Martin (ALMA), D. A. Perley (LJMU) and S. Schulze \n(Uni. of Stockholm) report,\n\nWe observed the afterglow of GRB 221009A (Dichiara et al., \nGCN 32632; Kennea & Williams, GCN 32635; Bissaldi et al., \nGCN 32637; Veres et al., GCN 32636; Lesage et al., GCN \n32642) with NOEMA at 90 and150 GHz starting at 16:32 UT \nof the 10th of October, (27.35 hr after the Fermi GBM trigger; \nVeres et al., GCN 32636). The afterglow is strongly detected \nat 90 GHz with a flux of ~15 mJy. This is significantly below \nthe extrapolation of the data reported at lower frequencies in \nprevious GCNs (Bright et al. GCN 32653; Farah et al., GCN \n32655), indicating that our observations are beyond the peak \nFrequency, and that the earlier observations may have been \naffected by a reverse shock that has already faded.",
  "circularId": 32676,
  "createdOn": 1665479367000,
  "email": "deugarte@oca.eu",
  "subject": "GRB 221009A: NOEMA mm detection",
  "submitter": "Antonio de Ugarte Postigo at OCA  <deugarte@oca.eu>",
  "eventId": "GRB 221009A"
}