Orbital Angular Momentum of Exoplanets in the Vicinity of Sun like 'G' Stars
Orbital Angular Momentum of Exoplanets in the Vicinity of Sun like 'G' Stars
Abstract ID#: 33266
English Abstract:
Angular momentum problem of the solar system, viz., most of the angular momentum is distributed in planetary bodies rather than in the sun, still remains a mystery and is one of the unsolved problem in genesis of solar system formation. In order to find clues if any, rotation rates of sun like G stars that have exoplanets are considered. With the constraints that exoplanets are within 1 AU from the host stars that have orbital inclination between 80o to90o , exoplanets’ respective orbital angular momentum is estimated. From the best relationship between orbital angular momentum and mass of the exoplanets, it is found that solar system terrestrial planets have very low orbital angular momentum compared to the orbital angular momentum of exoplanets in the vicinity of the host stars. In order to match with the orbital angular momentum of exoplanets, present mass of the terrestrial planets of the solar system has
to be increased substantially suggesting that their is a missing mass in the vicinity of sun. It is conjectured that, during the early history of solar system formation, some part of this solar system terrestrial planetary missing mass might have migrated to outer part of solar system and some part might have accreted on to the sun.
to be increased substantially suggesting that their is a missing mass in the vicinity of sun. It is conjectured that, during the early history of solar system formation, some part of this solar system terrestrial planetary missing mass might have migrated to outer part of solar system and some part might have accreted on to the sun.