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전파 Jet 3C449의 동역학적 모형 KCI 등재

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  • URLhttps://db.koreascholar.com/Article/Detail/390077
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천문학논총 (Publications of the Korean Astronomical Society)
한국천문학회 (Korean Astronomical Society)
초록

A jet plasmoid model for 3C.449 has been constructed by introducing a plasma.ejecting black hole orbiting around the center of its parent cD galaxy. We examined the characteristics of the jet trajectory by varying the values of (1) orbiting radius and velocity of the black hole, (2) plasma ejection velocity, (3) size, mass and space velocity of the parent galaxy, (4) size of the galactic core and (5) the density of the intergalactic medium. In our model calculation the effect of the gravity by the parent galaxy and the ram pressure by the intergalactic medium have been taken in account. It is found that our dynamical model accounts reasonably well for the observed structure of 3C449. Our proposed model suggests that the buoyancy force near the galactic center plays an important role in the formation of the curved structure of the radio jet.

저자
  • 정홍대(서울대학교 천문학과) | Jeong Hong-Dae
  • 윤홍식(서울대학교 천문학과) | Yun Hong-Sik
  • 최승언(서울대학교 지구과학교육과) | Choe Seung-Eon