Effect of radiation on the stability of equilibrium points in the binary stellar systems: RW-Monocerotis,Krüger 60 |
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| Authors: | M K Das Pankaj Narang S Mahajan M Yuasa |
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| Institution: | (1) Institute of Informatics and Communication, University of Delhi, South Campus, Benitojuarez Road, New Delhi, 110021, India;(2) Department of Physics, A.R.S.D. College, University of Delhi, New Delhi, 110021, India;(3) Department of Physics & Astrophysics, University of Delhi, New Delhi, 110021, India;(4) RIST, Kinki University, Higashi-Osaka 577-8502, Japan |
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| Abstract: | We have studied the stability of location of various equilibrium points of a passive micron size particle in the field of
radiating binary stellar system within the framework of circular restricted three body problem. Influence of radial radiation
pressure and Poynting-Robertson drag (PR-drag) on the equilibrium points and their stability in the binary stellar systems
RW-Monocerotis and Krüger-60 has been studied. It is shown that both collinear and off axis equilibrium points are linearly unstable for increasing value
of β
1 (ratio of radiation to gravitational force of the massive component) in presence of PR-drag for the binary systems. Further
we find that out of plane equilibrium points (L
i
, i=6,7) may exists for range of values of β
1>1 for these binary systems in the presence of PR-drag. Our linear stability analysis shows that the motion near the equilibrium
points L
6,7 of the binary systems is unstable both in the absence and presence of PR-drag. |
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| Keywords: | Radiation Poynting-Robertson drag Binary stellar system Equilibrium points Stability |
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