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On the making of a PN: the interaction of a multiple stellar wind with the ISM

Published online by Cambridge University Press:  16 August 2023

Arturo Manchado Open the ORCID record for Arturo Manchado [Opens in a new window] ,
Eva Villaver ,
G. García-Segura  and
Luciana Bianchi
Arturo Manchado
Affiliation:
Instituto de Astrofsica de Canarias, Va Láctea S/N, E-38200 La Laguna, Tenerife, Spain Departmento de Astrofsica, Universidad de La Laguna (ULL), E-38206 La Laguna, Tenerife, Spain Consejo Superior de Investigaciones Cientficas, Spain
Eva Villaver
Affiliation:
Centro de Astrobiologa (CAB, CSIC-INTA), ESAC Campus Camino Bajo del Castillo, s/n, Villanueva de la Cañada, 28692, Madrid, Spain
G. García-Segura
Affiliation:
Instituto de Astronoma-UNAM, Apartado postal 877, Ensenada, 22800 Baja California, México
Luciana Bianchi
Affiliation:
Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218, USA
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Abstract

NGC 7293, the Helix nebula, represents one of the rare instances in which theoretical predictions of stellar evolution can be accurately tested against observations since the precise parallax distance and the velocity and proper motion of the star are well known. We present numerical simulations of the formation of the Helix PN that are fully constrained by the progenitor stellar mass, stellar evolution history, and star-interstellar medium (ISM) interaction. In the simulations, multiple bow-shock structures are formed by fragmentation of the shock front where the direct interaction of the stellar wind with the ISM takes place.

Keywords

hydrodynamics–ISMplanetary nebulageneral; planetary nebulaindividual (NGC 7293) – starsAGB and post-AGB
Type
Contributed Paper
Information
Proceedings of the International Astronomical Union , Volume 17 , Symposium S370: Winds of Stars and Exoplanets , August 2021 , pp. 238 - 240
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Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of International Astronomical Union

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