Science with the ngVLA: Planetary Nebulae
Joel H. Kastner (Rochester Institute of Technology, Rochester, NY,, USA), Albert Ziljstra (University of Manchester, Manchester, UK), Bruce, Balick (University of Washington, Seattle, WA, USA), Raghvendra Sahai (JPL,, Pasadena, CA, USA)

TL;DR
The paper discusses how the next-generation Very Large Array (ngVLA) can significantly advance understanding of planetary nebulae, their origins, and their role in stellar evolution and interstellar medium enrichment.
Contribution
It highlights specific ways the ngVLA will improve observations of planetary nebulae, revealing details about binary influences, plasma physics, and chemical processes.
Findings
ngVLA will enable detailed imaging of PNe structures
It will help study binary star impacts on PNe formation
The observations will shed light on stellar wind interactions and ISM enrichment
Abstract
Planetary nebulae (PNe) represent the near endpoints of evolution for stars of initial mass 1-8 , wherein the envelope of an asymptotic giant branch (AGB) star becomes photodissociated and ionized by high-energy radiation from a newly emerging white dwarf that was the progenitor star's core. It is increasingly evident that most PNe are descended from binary systems. PNe hence provide unique insight into a diverse range of astrophysical phenomena, including the influence of companion stars on the late stages of stellar evolution; stellar wind interactions and shocks; the physics and chemistry of photoionized plasmas and photon-dominated regions (PDRs); and enrichment of the ISM in the products of intermediate-mass stellar nucleosynthesis. We describe specific examples of the potential impact of the ngVLA in each of these areas.
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Taxonomy
TopicsStellar, planetary, and galactic studies · Astronomy and Astrophysical Research · Astronomical Observations and Instrumentation
