296 citations · 3.4k across the 75 of their papers we have counts for
10 papers · 1 filter
Searching for binary central stars of planetary nebulae with Kepler
D. Douchin, G. H. Jacoby, O. De Marco +2
The Kepler Observatory offers unprecedented photometric precision (<1 mmag) and cadence for monitoring the central stars of planetary nebulae, allowing the detection of tiny period…
Estimating the binary fraction of planetary nebulae central stars
D. Douchin, O. De Marco, D. J. Frew +10
During the past 20 years, the idea that non-spherical planetary nebulae (PN) may need a binary or planetary interaction to be shaped was discussed by various authors. It is now gen…
Observing Compact Disks Inside Pre-Planetary Nebulae with the Very Large Telescope Interferometer
S. N. Bright, O. De Marco, O. Chesneau +3
AGB stars appear to lose mass spherically, but many PNe resulting from the AGB mass-loss have non-spherical morphologies. Compact disks have been found in some bipolar PNe, but the…
From Bipolar to Elliptical: Simulating the Morphological Evolution of Planetary Nebulae
Martín Huarte-Espinosa, Adam Frank, Bruce Balick +4
The majority of Proto-planetary nebulae (PPN) are observed to have bipolar morphologies. The majority of mature PN are observed to have elliptical shapes. In this paper we address…
The Dust Properties of Two Hot R Coronae Borealis Stars and a Wolf-Rayet Central Star of a Planetary Nebula: in Search of a Possible Link
Geoffrey C. Clayton, O. De Marco, B. A. Whitney +14
We present new Spitzer/IRS spectra of two hot R Coronae Borealis (RCB) stars, one in the Galaxy,V348 Sgr, and one lying in the LMC, HV 2671. These two objects may constitute a link…
The role of planets in shaping planetary nebulae
Orsola De Marco, Noam Soker
In 1997 Soker laid out a framework for understanding the formation and shaping of planetary nebulae (PN). Starting from the assumption that non-spherical PN cannot be formed by sin…