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26 April 2024 |
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Rings of C2H in the Molecular Disks Orbiting TW Hya and V4046 Sgr | | J. H. Kastner
; C. Qi
; U. Gorti
; P. Hily-Blant
; K. Oberg
; T. Forveille
; S. Andrews
; D. Wilner
; | | Date: |
2 Oct 2015 | | Abstract: | We have used the Submillimeter Array to image, at ~1" resolution, C2H(3-2)
emission from the molecule-rich circumstellar disks orbiting the nearby,
classical T Tauri star systems TW Hya and V4046 Sgr. The SMA imaging reveals
that the C2H emission exhibits a ring-like morphology within each disk, the
inner hole radius of the C2H ring within the V4046 Sgr disk (~70 AU) is
somewhat larger than than of its counterpart within the TW Hya disk (~45 AU).
We suggest that, in each case, the C2H emission likely traces irradiation of
the tenuous surface layers of the outer disks by high-energy photons from the
central stars. | | Source: | arXiv, 1510.0739 | | Services: | Forum | Review | PDF | Favorites | |
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