Abstract
This workshop is the second of the WORKPLANS series, which we started in 2016. The main goal of WORKPLANS is to build up a network of planetary nebulae (PNe) experts to address the main open questions in the field of PNe research. The specific aims of the WORKPLANS workshop series are (i) to discuss and prioritize the most important topics to be investigated by the PN community in the following years; (ii) to establish a network of excellent researchers with complementary expertise; (iii) to formulate ambitious observing proposals for the most advanced telescopes and instrumentation presently available (ALMA, SOFIA, VLT, GTC, HST, etc.), addressing those topics; and (iv) to develop strategies for major proposals to future observatories (JWST, ELT, SPICA, Athena, etc.). To achieve these goals, WORKPLANS II brought together experts in all key sub-areas of the PNe research field, namely: analysis and interpretation of PNe observational data; theoretical modeling of gas and dust emission; evolution from Asymptotic Giant Branch stars (PNe progenitors) to PNe; and the instrumentation and technical characteristics of the relevant observatories.
Highlights
Planetary nebulae (PNe) are formed by the ejection of the outer layers of evolved low and intermediate mass stars (∼1–8 M )
Nebulae Workshop in Miraflores de la Sierra, Madrid, Spain in 2013; both meetings were organized with goals similar to those of WORKPLANS
In the first WORKPLANS (25–29 January 2016), 51 researchers gathered in the Lorentz Center1, Leiden, Netherlands, for what was a very fruitful week
Summary
Planetary nebulae (PNe) are formed by the ejection of the outer layers of evolved low and intermediate mass stars (∼1–8 M ). Uncover PNe that cannot be identified in the optical spectral range improve central star evolutionary models improve our knowledge of the atmospheres and winds of central stars investigate the role of binary central stars in the evolution/formation of PNe understand the history and mechanisms of mass-loss and structure formation in the circumstellar nebulae improve techniques to derive chemical abundances understand the abundance discrepancies measured from collisional and recombination lines understand the formation mechanisms and survival of dust and molecules in PNe. The IAU PN working group white paper [1] makes clear the need of further multi-wavelength observations in the PN research field and serves as a motivation for this workshop series. Giant Branch stars (AGB) research community, which has regular meetings strategically scheduled before each ALMA observing cycle These meetings generated successful proposals that were granted observing time by this highly competitive observatory. Nebulae Workshop in Miraflores de la Sierra, Madrid, Spain in 2013; both meetings were organized with goals similar to those of WORKPLANS
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