Wesson, R;
Jones, D;
García-Rojas, J;
Boffin, H;
Corradi, R;
(2018)
Close Binaries and the Abundance Discrepancy Problem in Planetary Nebulae.
Galaxies
, 6
(4)
, Article 110. 10.3390/galaxies6040110.
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Abstract
Motivated by the recent establishment of a connection between central star binarity and extreme abundance discrepancies in planetary nebulae, we have carried out a spectroscopic survey targeting planetary nebula with binary central stars and previously unmeasured recombination line abundances. We have discovered seven new extreme abundance discrepancies, confirming that binarity is key to understanding the abundance discrepancy problem. Analysis of all 15 objects with a binary central star and a measured abundance discrepancy suggests a cut-off period of about 1.15 days, below which extreme abundance discrepancies are found.
| Type: | Article |
|---|---|
| Title: | Close Binaries and the Abundance Discrepancy Problem in Planetary Nebulae |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.3390/galaxies6040110 |
| Publisher version: | https://doi.org/10.3390/galaxies6040110 |
| Language: | English |
| Additional information: | © 2018 by the Authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
| Keywords: | planetary nebulae; binarity; abundances; stellar evolution |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10083832 |
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