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      https://www.ias.ac.in/article/fulltext/joaa/030/03-04/0177-0185

    • Keywords

       

      Radiation; Poynting; Robertson drag; binary stellar system; equilibrium points; stability.

    • Abstract

       

      We have investigated the out of plane equilibrium points of a passive micron size particle and their stability in the field of radiating binary stellar systems Krüger-60, RW-Monocerotis within the framework of photo-gravitational circular restricted three-body problem. We find that the out of plane equilibrium points (𝐿𝑖, 𝑖 = 6, 7, 8, 9) may exist for range of 𝛽1 (ratio of radiation to gravitational force of the massive component) values for these binary systems in the presence of Poynting–Robertson drag (hereafter PR-drag). In the absence of PR-drag, we find that the motion of a particle near the equilibrium points 𝐿6,7 is stable in both the binary systems for a specific range of 𝛽1 values. The PR-drag is shown to cause instability of the various out of plane equilibrium points in these binary systems.

    • Author Affiliations

       

      M. K. Das1 Pankaj Narang2 S. Mahajan3 M. Yuasa4

      1. Institute of Informatics and Communication, University of Delhi South Campus, Benitojuarez Road, New Delhi 110 021, India.
      2. Department of Physics, A.R.S.D. College, University of Delhi, New Delhi 110 021, India.
      3. Department of Physics & Astrophysics, University of Delhi, New Delhi 110 021, India.
      4. RIST, Kinki University , Higashi-Osaka 577-8502, Japan.
    • Dates

       
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