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Open AccessArticle

Shaping Planetary Nebulae with Jets and the Grazing Envelope Evolution

by Noam Soker 1,2
1
Department of Physics, Technion, Haifa 3200003, Israel
2
Guangdong Technion Israel Institute of Technology, Shantou 515069, China
Galaxies 2020, 8(1), 26; https://doi.org/10.3390/galaxies8010026
Received: 14 February 2020 / Revised: 12 March 2020 / Accepted: 13 March 2020 / Published: 18 March 2020
(This article belongs to the Special Issue Workplans II: Workshop for Planetary Nebula Observations)
I argue that the high percentage of planetary nebulae (PNe) that are shaped by jets show that main sequence stars in binary systems can accrete mass at a high rate from an accretion disk and launch jets. Not only does this allow jets to shape PNe, but this also points to the importance of jets in other types of binary systems and in other processes. These processes include the grazing envelope evolution (GEE), the common envelope evolution (CEE), and the efficient conversion of kinetic energy to radiation in outflows. Additionally, the jets point to the possibility that many systems launch jets as they enter the CEE, possibly through a GEE phase. The other binary systems in which jets might play significant roles include intermediate-luminosity optical transients (ILOTs), supernova impostors (including pre-explosion outbursts), post-CEE binary systems, post-GEE binary systems, and progenitors of neutron star binary systems and black hole binary systems. One of the immediate consequences is that the outflow of these systems is highly-non-spherical, including bipolar lobes, jets, and rings. View Full-Text
Keywords: planetary nebulae: general; ISM: jets and outflows; stars: AGB and post-AGB; binaries: general; stars: mass-loss; stars: winds; stars: outflows planetary nebulae: general; ISM: jets and outflows; stars: AGB and post-AGB; binaries: general; stars: mass-loss; stars: winds; stars: outflows
MDPI and ACS Style

Soker, N. Shaping Planetary Nebulae with Jets and the Grazing Envelope Evolution. Galaxies 2020, 8, 26.

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