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- W3103757513 abstract "ALMA cycle 3 observations of $^{12}$CO $ J = 3rightarrow2$, $^{13}$CO $J = 4rightarrow 3$, SiO J = $8 rightarrow 7$, and HCN J = $ 5 rightarrow 4$ are presented. Significant extended emission is detected in $^{12}$CO J $ = 3rightarrow2$ with a morphology that is indicative of m = 2 tidal features, suggesting gas inflow. In addition, outflow for both nuclei are found in the $^{12}$CO J $ = 3rightarrow2$. Significant SiO absorption is detected in the western nucleus. HCN that is morphologically distinct from CO is detected in both nuclei. These observations are compared to non-LTE radiative transfer models created using the Line Modeling Engine (LIME) for simple gas dynamics to gain insight into how physical parameters, such as rotational velocity, turbulent velocity, gas temperature, dust temperature, and gas mass can reproduce the observed kinematic and spatial features. The eastern nucleus is found to be best modeled with an inclusion of a temperature asymmetry from one side of the disk to the other. It is also found that the western nucleus is optically thick even in the less abundant species of $^{13}$CO, absorbing significant amounts of continuum radiation." @default.
- W3103757513 created "2020-11-23" @default.
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- W3103757513 date "2020-06-11" @default.
- W3103757513 modified "2023-09-27" @default.
- W3103757513 title "Arp 220: New Observational Insights into the Structure and Kinematics of the Nuclear Molecular Disks and Surrounding Gas" @default.
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- W3103757513 doi "https://doi.org/10.3847/1538-4357/ab8f32" @default.
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