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- W2039030167 abstract "Aims: In this paper, we focus on the kinematical properties of a proto-binaryto study the infall and rotation of gas towards its two protostellarcomponents. Methods: We present ALMA Science Verification observations withhigh-spectral resolution of IRAS 16293-2422 at 220.2 GHz. The wealth ofmolecular lines in this source and the very high spectral resolution offered byALMA allow us to study the gas kinematics with unprecedented detail. Results:We present the first detection of an inverse P-Cygni profile towards source Bin the three brightest lines. The line profiles are fitted with a simpletwo-layer model to derive an infall rate of 4.5x10^-5 Msun/yr. This infalldetection would rule-out the previously suggested possibility of source B beinga T Tauri star. A position velocity diagram for source A shows evidence forrotation with an axis close to the line-of-sight." @default.
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- W2039030167 date "2012-08-01" @default.
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- W2039030167 title "The first ALMA view of IRAS 16293-2422 - Direct detection of infall onto source B and high-resolution kinematics of source A" @default.
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