170 citations · 1.6k across the 37 of their papers we have counts for
4 papers · 1 filter
The Masses of Transition Circumstellar Disks: Observational Support for Photoevaporation Models
Lucas A. Cieza, Jonathan J. Swift, Geoffrey S. Mathews +1
We report deep Sub-Millimeter Array observations of 26 pre-main-sequence (PMS) stars with evolved inner disks. These observations measure the mass of the outer disk (r ~20-100 AU)…
A Case Study of Low-Mass Star Formation
J. Swift, Wm. J. Welch
This article synthesizes observational data from an extensive program aimed toward a comprehensive understanding of star formation in a low-mass star-forming molecular cloud. New o…
A Pre-Protostellar Core in L1551
J. Swift, Wm. J. Welch, J. Di Francesco
Large field surveys of NH3, C2S, 13CO and C18O in the L1551 dark cloud have revealed a prolate, pre-protostellar molecular core (L1551-MC) in a relatively quiescent region to the n…
Spatially Resolved Millimeter Spectroscopy of the Gravitational Lens PKS 1830-211
J. Swift, W. J. Welch, B. Frye
This paper presents data from the BIMA interferometer showing spatially resolved absorption spectra of the gravitationally lensed quasar PKS 1830-211. High-resolution (1.2 km/s) sp…