144 citations · 901 across the 34 of their papers we have counts for
Showing 2010Show all
2 papers · 1 filter
astro-ph.SR2010★ 39 cited
Are Proto-Planetary Nebulae Shaped by a Binary? Results of a Long-Term Radial Velocity Study
Bruce J. Hrivnak, Wenxian Lu, Katrina Loewe Wefel +4
The shaping of the nebula is currently one of the outstanding unsolved problems in planetary nebula (PN) research. Several mechanisms have been proposed, most of which require a bi…
astro-ph.SR2010★ 35 cited
A Spitzer/IRS spectral study of a sample of galactic carbon-rich proto-planetary nebulae
Yong Zhang, Sun Kwok, Bruce J. Hrivnak
Recent infrared spectroscopic observations have shown that proto-planetary nebulae (PPNs) are sites of active synthesis of organic compounds in the late stages of stellar evolution…