131 citations · 1.7k across the 65 of their papers we have counts for
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Morpho-Kinematic Properties of the 21-Micron Source IRAS 07134+1005
Jun-ichi Nakashima, Nico Koning, Sun Kwok +1
We report the results of a Submillimeter Array (SMA) interferometric observation of 21-micron source IRAS 07134+1005 in the CO J=3-2 line. In order to determine the morpho-kinemati…
A Molecular Line Survey of the Highly Evolved Carbon Star CIT 6
Yong Zhang, Sun Kwok, Dinh-V-Trung
We present a spectral line survey of the C-rich envelope CIT 6 in the 2mm and 1.3mm bands carried out with the Arizona Radio Observatory (ARO) 12m telescope and the Heinrich Hertz…
Emission line profiles as a probe of physical conditions in planetary nebulae
Yong Zhang
We present an analysis of physical conditions in planetary nebulae (PNe) in terms of collisionally-excited line (CEL) and optical-recombination line (ORL) profiles. We aim to inves…
A spectral line survey of NGC 7027 at millimeter wavelengths
Yong Zhang, Sun Kwok, Dinh-V-Trung
We report on a recent spectral line survey of the planetary nebula (PN) NGC 7027 using the Arizona Radio Observatory (ARO) 12m telescope and the Heinrich Hertz Submillimeter Telesc…
Independent Emission and Absorption Abundances for Planetary Nebulae
Robert Williams, Edward B. Jenkins, Jack A. Baldwin +4
Emission-line abundances have been uncertain for more than a decade due to unexplained discrepancies in the relative intensities of the forbidden lines and weak permitted recombina…