177 citations · 210 across the 2 of their papers we have counts for
4 papers
Atomic Carbon in the Envelopes of Carbon-Rich Post-AGB Stars
G. R. Knapp, M. Crosas, K. Young +1
Atomic carbon has been detected in the envelopes of three carbon-rich evolved stars: HD 44179 (=AFGL 915, the `Red Rectangle'); HD 56126; and, tentatively, the carbon star V Hya. T…
Multiple Molecular Winds in Evolved Stars I. A Survey of CO(2-1) and CO(3-2) Emission from 45 Nearby AGB Stars
G. R. Knapp, K. Young, E. Lee +1
This paper describes observations of a new phenomenon in evolved mass-losing AGB stars: the presence of two winds with different expansion velocities. CO(2-1) and CO(3-2) line emis…
A CO(3-2) Survey of Nearby Mira Variables
K. Young
A survey of CO(3-2) emission from optically visible oxygen-rich Mira variable stars within 500 pc of the sun was conducted. A molecular envelope was detected surrounding 36 of the…
Maps of the Molecular Emission Around 18 Evolved Stars
K. Z. Stanek, G. R. Knapp, K. Young +1
We present maps at resolution of the molecular emission around 18 evolved stars (14~asymptotic giant branch stars, one supergiant, two proto-planetary nebulae and one planet…