182 citations · 546 across the 13 of their papers we have counts for
4 papers · 1 filter
Preplanetary Nebulae: An HST Imaging Survey and a New Morphological Classification System
Raghvendra Sahai, Mark Morris, Carmen Sánchez Contreras +1
Using the Hubble Space Telescope (HST), we have carried out a survey of candidate preplanetary nebulae (PPNs). We report here our discoveries of objects having well-resolved geomet…
Excited-state OH Mainline Masers in AU Geminorum and NML Cygni
Lorant O. Sjouwerman, Vincent L. Fish, Mark J. Claussen +2
Excited-state OH maser emission has previously been reported in the circumstellar envelopes of only two evolved stars: the Mira star AU Geminorum and the hypergiant NML Cygni. We p…
The Detection and Characterization of cm Radio Continuum Emission from the Low-mass Protostar L1014-IRS
Yancy L. Shirley, Mark J. Claussen, Tyler M. Bourke +2
Observations by the Cores to Disk Legacy Team with the Spitzer Space Telescope have identified a low luminosity, mid-infrared source within the dense core, Lynds 1014, which was pr…
An Inner Hole in the Disk around TW Hydrae Resolved in 7 Millimeter Dust Emission
A. M. Hughes, D. J. Wilner, N. Calvet +3
We present Very Large Array observations at 7 millimeters wavelength that resolve the dust emission structure in the disk around the young star TW Hydrae at the scale of the ~4 AU…