Abstract
We present high angular resolution spectra taken along the jets from L1551 IRS 5 and DG Tau obtained with the Subaru Telescope. The position-velocity diagrams of the [Fe II] λ 1.644 μm emission line revealed remarkably similar characteristics for the two sources, showing two distinct velocity components separated from each other in both velocity and space with the entire emission range blueshifted with respect to the stellar velocity. The high velocity component (HVC) has a velocity of -200 -300 km s-1 with a narrow line width, while the low velocity component (LVC) is around -100 km s-1 exhibitinig a broad line width. The HVC is located farther away from the origin and is more extended than the LVC. Our results suggest that the HVC is a well-collimated jet originating from the region close to the star, while the LVC is a widely-opened wind accelerated in the region near the inner edge of the accretion disk.
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Based on data collected at Subaru Telescope, which is operated by the National Astronomical Observatory of Japan.
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References
Hirth, G.A., Mundt, R. and Solf, J.: 1994, Astron. Astrophys. Supp. Ser. 126, 437.
Kitamura, Y., Kawabe, R. and Saito, M.: 1996, Astrophys. J. 457, 277.
Kwan, J. and Tademaru, E.: 1988, Astrophys. J. 332, L41.
Momose, M., Ohashi, N., Kawabe, R., Nakano, T. and Hayashi, M.: 1998, Astrophys. J. 504, 314.
Pyo, T.-S., Hayashi, M., Kobayashi, N., Terada, H., Goto, M., Yamashita, T., Tokunaga, A.T. and Itoh, Y: 2002, Astrophys. J. 570, 724.
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© 2003 Springer Science+Business Media Dordrecht
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Pyo, TS. et al. (2003). The Structure of Young Stellar Jets and Winds Revealed By High Resolution [Fe Ii] λL.644μM Line Observations. In: Fernandes, A.J.L., Garcia, P.J.V., Lima, J.J.G. (eds) Jets in Young Stellar Objects. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-0999-7_3
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DOI: https://doi.org/10.1007/978-94-007-0999-7_3
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