5 citations · 9 across the 5 of their papers we have counts for
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A Grand Challenge for Planetary Nebulae
Adam Frank, Orsola De Marco, Eric Blackman +1
The study of PN has been confronting a growing list of dilemmas which have yet to find coherent resolution. These issues are both observational and theoretical and can be stated as…
[WC] and PG1159 Central Stars of Planetary Nebula: the Need for an Alternative to the Born-Again Scenario
Orsola De Marco
Hydrogen-deficient central stars of planetary nebula such as Wolf-Rayet and PG1159 central stars and some weak emission line stars are primarily composed of helium and carbon. This…
The Bizarre Spectral Variability of Central Stars of Planetary Nebulae
Orsola De Marco, S. Wortel, Howard E. Bond +1
A radial velocity (RV) survey to detect central stars in binary systems was carried out between 2002 and 2004. De Marco et al. (2004) reported that 10 out of 11 monitored stars exh…
Outflows and Jets I: a personal take
Orsola De Marco
As a session chair I have the privilege to write down a few comments on four talks that were delivered under the general title of "outflows and jets I". This and the session that f…
The dual dust chemistry - binarity connection
Orsola De Marco, A. F. Jones, M. J. Barlow +1
Accumulating evidence points to a binary nature for the Wolf-Rayet ([WC]) central stars, a group that constitutes about 15% of all central stars of planetary nebula. From ISO obser…
Far-UV FUSE spectroscopy of the OVI resonance doublet in Sand2 (WO)
Paul A. Crowther, A. W. Fullerton, D. J. Hillier +10
We present Far-Ultraviolet Spectroscopic Explorer (FUSE) spectroscopy of Sand 2, a LMC WO-type Wolf-Rayet star, revealing the OVI resonance P Cygni doublet at 1032-38A. These data…