{
  "bibcode": "2019GCN.25581....1D",
  "body": "S. Dado and A. Dar report,\n\nThe long duration, low luminosity GRB190829A [1] at redshift z=0.0785 [2] \nwith Ep=130 +/- 20 keV and Eiso~1.8E50 erg, most probably, is an ordinary \nnarrowly beamed GRB being viewed from far off-axis -it satisfies well the \ncorrelation (1+z)Ep propto (Eiso)^{1/3}, predicted [3] by the cannonball \nmodel of GRBs, as can be seen from figure 3 of [4].  Like in SHB 170817A\n[5], VLA and VLBI follow up observations of the radio afterglow of\nGRB190829A may resolve its compact superluminal source and measure its \napparent superluminal velocity, Vapp ~ 2c/theta, from which  its far \noff-axis viewing angle theta  can be determined [6]. We urge such follow \nup VLA and VLBI radio observations of its afterglow.\n\n[1] S. Lesage et al.,  GCN 25575.\n[2] A. F. Valeev et al., GCN  25565.\n[3] A. Dar & A. De R'ujula, arXiv:astro-ph/0012227 (Eq. 40).\n[4] S. Dado & A. Dar, arxiv:1908.05116.\n[5] K. P. Mooley, et al., Nature, 561, 355 (2018) [arXiv:1806.09693].\n[6] A. Dar & A. De R'ujula, arXiv:astro-ph/0008474.",
  "circularId": 25581,
  "createdOn": 1567196462000,
  "email": "arnon@physics.technion.ac.il",
  "subject": "GRB 190829A: Follow up VLA and VLBI radio observations urged",
  "submitter": "Arnon Dar at Technion-Israel Inst. of Tech  <arnon@physics.technion.ac.il>",
  "eventId": "GRB 190829A"
}