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    • Keywords


      Gamma-rays: bursts; X-rays: X-ray; individual: GRB 100418A.

    • Abstract


      GRB 100418A is a long burst at 𝑧 = 0.624 without detection of associated supernova (SN).We present a detailed analysis on this event and discuss possible origins of its multi-wavelength emission. The temporal features of this event is similar to GRB 060614, a well-known nearby long GRB without SN association (possibly a Type I GRB), indicating that the two events may be cosmic twins. However, both the circumburst medium density and the GRB classification based on the gamma-ray energy and spectrum suggest that GRB 100418A would be a Type II GRB. These results make a great puzzle on the progenitors of this kind of events, if they belong to the same population.

    • Author Affiliations


      Lan-Wei Jia1 Hou-Jun Lü2 Shu-Jin Hou2 En-Wei Liang2

      1. College of Physics and Electronic Engineering, Guangzhou University, Guangzhou 510006, China.
      2. Department of Physics, Guangxi University, Nanning 530004, China.
    • Dates

  • Journal of Astrophysics and Astronomy | News

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