1. Home
    2. Journals
    3. Journal of Astrophysics and Astronomy
    4. Volume 35
    5. Issue 1

    • Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/joaa/035/01/0097-0106

    • Keywords

       

      Primordial black holes; loop quantum cosmology; accretion; Hawking evaporation.

    • Abstract

       

      In this work, we study the evolution of primordial black holes within the context of loop quantum cosmology. First we calculate the scale factor and energy density of the Universe for different cosmic era and then taking these as inputs, we study evolution of primordial black holes. From our estimation it is found that accretion of radiation does not affect evolution of primordial black holes in loop quantum cosmology. We also conclude that due to slow variation of scale factor, the upper bound on initial mass fraction of presently evaporating PBHs are much greater in loop quantum cosmology than the standard case.

    • Author Affiliations

       

      D. Dwivedee1 B. Nayak1 M. Jamil2 3 L. P. Singh1 R. Myrzakulov3

      1. Department of Physics, Utkal University, Vanivihar, Bhubaneswar 751 004, India.
      2. Center for Advanced Mathematics and Physics (CAMP), National University of Sciences and Technology (NUST), H-12, Islamabad, Pakistan.
      3. Eurasian International Center for Theoretical Physics, Eurasian National University, Astana, Kazakstan.

    • Dates

       
      Published
      March 2014
      Manuscript received
      9 October 2013
      Accepted
      6 February 2014

  • 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

© 2022-2023 Indian Academy of Sciences, Bengaluru.

Contact | Site index