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LIME - a flexible, non-LTE line excitation and radiation transfer method for millimeter and far-infrared wavelengths
We present a new code for solving the molecular and atomic excitation and radiation transfer problem in a molecular gas and predicting emergent spectra. This code works in arbitrary three dimensionalExpand
ALMA Survey of Lupus Protoplanetary Disks. I. Dust and Gas Masses
We present the first high-resolution sub-millimeter survey of both dust and gas for a large population of protoplanetary disks. Characterizing fundamental properties of protoplanetary disks on aExpand
Envelope structure on 700 AU scales and the molecular outflows of low-mass young stellar objects.
Trends support the hypothesis that outflows are driven by accretion through a disk, with a global mass infall rate determined by the mass and density of the envelope. Expand
PROSAC: a submillimeter array survey of low-mass protostars - II. The mass evolution of envelopes, disks, and stars from the class 0 through I stages
Context. The key question about early protostellar evolution is how matter is accreted from the large-scale molecular cloud, through the circumstellar disk onto the central star. Aims. We constrainExpand
We present arcsecond-scale Submillimeter Array observations of the CO(3-2) line emission from the disks around the young stars HD 163296 and TW Hya at a spectral resolution of 44 m s–1. TheseExpand
Detection of the Water Reservoir in a Forming Planetary System
The Heterodyne Instrument for the Far-Infrared on board the Herschel Space Observatory has detected emission lines from both spin isomers of cold water vapor from the disk around the young star TW Hydrae, hinting at a water ice reservoir equivalent to several thousand Earth oceans in mass. Expand
Herschel images of Fomalhaut: an extrasolar Kuiper belt at the height of its dynamical activity
Context. Fomalhaut is a young (2 ± 1 × 10 8 years), nearby (7.7 pc), 2 Mstar that is suspected to harbor an infant planetary system, interspersed with one or more belts of dusty debris. Aims. WeExpand
Imaging of the CO Snow Line in a Solar Nebula Analog
Chemical imaging of the carbon monoxide snow line in the disk around TW Hya, an analog of the solar nebula, is presented using high spatial and spectral resolution Atacama Large Millimeter/Submillimeter Array observations of diazenylium (N2H+), a reactive ion present in large abundance only where CO is frozen out. Expand
Imaging the Disk around TW Hydrae with the Submillimeter Array
We present similar to2"-4" aperture synthesis observations of the circumstellar disk surrounding the nearby young star TW Hya in the CO J = 2-1 and J = 3-2 lines and associated dust continuumExpand