Science Advances

Supplementary Materials

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  • Supplementary Text
  • fig. S1. A superradiance large-sample intensity model (solid blue curve) superposed on the data from Fujisawa et al. (27) (black dots) obtained in July and August 2009 for the second 6.7-GHz methanol burst in G33.64-0.21.
  • The data presented in fig. S1 (black dots) from Fujisawa et al. (27) obtained in July and August 2009 for the second 6.7-GHz methanol burst in G33.64-0.21.
  • fig. S2. A superradiance large-sample intensity model (solid blue curve) superposed on the data from Mattila et al. (7) (black dots) obtained in April and May 1983 for the 22-GHz water burst at vlsr = -11.2kms-1 in Cepheus A.
  • The data presented in fig. S2 (black dots) from Mattila et al. (7) obtained in April and May 1983 for the 22-GHz water burst at vlsr = -11.2kms-1 in Cepheus A.
  • The data presented in Fig. 1 for the G107.298+5.639, illustrating the burst for vlsr = 8.57 km s-1 6.7-GHz methanol (red dots) between MJD 57,260 and 57,300 taken from Szymczak et al. 2016 (20).
  • The data presented in Fig. 1 for the G107.298+5.639, illustrating the burst for vlsr = 7.86 km s-1 22-GHz water (blue dots in the figure).
  • References (26–29)

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