• Fulltext


        Click here to view fulltext PDF

      Permanent link:

    • Keywords


      𝛾-rays: bursts; spectral lag; GRB pulse.

    • Abstract


      We analyse the spectral lag evolution of 𝛾-ray burst (GRB) pulses with observations by CGRO/BATSE. No universal spectral lag evolution feature and pulse luminosity-lag relation within a GRB is observed.Our results suggest that the spectral lag would be due to radiation physics and dynamics of a given emission episode, possibly due to the longer lasting emission in a lower energy band, and the spectral lag may not be an intrinsic parameter to discriminate the long and short GRBs.

    • Author Affiliations


      Lan-Wei Jia1 Yun-Feng Liang2 En-Wei Liang2 3

      1. Department of Physics, Guangzhou University, Guangzhou 510006, China.
      2. Department of Physics and GXU-NAOC Centre for Astrophysics and Space Sciences, Guangxi University, Nanning 530004, China.
      3. Key Laboratory for the Structure and Evolution of Celestial Objects, CAS, Kunming 650011, China.
    • Dates

  • Journal of Astrophysics and Astronomy | News

    • Continuous Article Publication

      Posted on January 27, 2016

      Since January 2016, the Journal of Astrophysics and Astronomy has moved to Continuous Article Publishing (CAP) mode. This means that each accepted article is being published immediately online with DOI and article citation ID with starting page number 1. Articles are also visible in Web of Science immediately. All these have helped shorten the publication time and have improved the visibility of the articles.

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2017-2019 Indian Academy of Sciences, Bengaluru.