{
  "bibcode": "2019GCN.25651....1B",
  "body": "J. Bolmer, J. Greiner, and T.-W. Chen (all MPE) report\n\nWe have been using GROND (Greiner et al. 2008, PASP 120, 405) to follow up the\nafterglow of GRB 190829A (Dichiara et al., GCN 25552) at z=0.08 (Valeev et al.,\nGCN 25565).\nThe light of the optical transient has been fading in all GROND bands during the first \ndays, was then flattening and is now finally showing a relativley sharp rise in all seven\nGROND bands (e.g. about 0.5 mag in z' to 19.55 +/- 0.03 mag_AB; 330s integration\ntime) between 4.5 and 5.5 days\nafter the BAT trigger. This behavior can be interpreted as the \nupcoming supernova component.\n\nFurther spectroscopic follow up is encouraged.",
  "circularId": 25651,
  "createdOn": 1567592053000,
  "email": "jan@bolmer.de",
  "subject": "GRB190829A: GROND detection of the accompanying SN",
  "submitter": "Jan Bolmer at MPE/Garching  <jan@bolmer.de>",
  "eventId": "GRB 190829A"
}