International Journal of Astrophysics and Space Science

Volume 9, Issue 2, June 2021

  • Applications of Math Microscope in the Event Horizon Telescope

    Evgeni Nikolaevich Terentiev, Nikolay Evgenyevich Shilin-Terentyev

    Issue: Volume 9, Issue 2, June 2021
    Pages: 21-31
    Received: Oct. 18, 2020
    Accepted: Nov. 07, 2020
    Published: Jun. 30, 2021
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    Abstract: The paper describes the insides - the basic concepts of the Math Microscope, demonstrates the results of Super-Resolution images obtained from the Event Horizon Telescope and analyzes the results of the movement of clusters of stars that go around the Black Hole. The presence of point objects - single stars in the SR image allowed us to implement a... Show More
  • The Nature of Accretion in Seyfert Galaxies

    Nwankwo Ifeanyi Francis, Ogwo Jemima Ngozi

    Issue: Volume 9, Issue 2, June 2021
    Pages: 32-36
    Received: Jun. 22, 2021
    Accepted: Jul. 07, 2021
    Published: Jul. 27, 2021
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    Abstract: We present statistical results from a sample of 91,006 Seyfert galaxies obtained from SDSS DR14 (Sloan Digital Sky Survey Data Release 14). Using the ratio of the flux of doubly ionized oxygen [OIII] to that of the flux of hydrogen beta line Hβ, the Seyfert galaxy sample was separated into Seyferts 1 and 2. For each class of Seyfert galaxy, both bo... Show More