(Sub)stellar companions shape the winds of evolved stars
Journal article, 2020

Binary interactions dominate the evolution of massive stars, but their role is less clear for low- and intermediate-mass stars. The evolution of a spherical wind from an asymptotic giant branch (AGB) star into a nonspherical planetary nebula (PN) could be due to binary interactions. We observed a sample of AGB stars with the Atacama Large Millimeter/submillimeter Array (ALMA) and found that their winds exhibit distinct nonspherical geometries with morphological similarities to planetary nebulae (PNe). We infer that the same physics shapes both AGB winds and PNe; additionally, the morphology and AGB mass-loss rate are correlated. These characteristics can be explained by binary interaction. We propose an evolutionary scenario for AGB morphologies that is consistent with observed phenomena in AGB stars and PNe.

solar system

stellar evolution

shape

white dwarfs

Author

L. Decin

University of Leeds

KU Leuven

M. Montargès

KU Leuven

A.M.S. Richards

University of Manchester

C. A. Gottlieb

Harvard-Smithsonian Center for Astrophysics

W. Homan

KU Leuven

I. McDonald

University of Manchester

Open University

I. El Mellah

KU Leuven

Taissa Danilovich

KU Leuven

Sofia Wallström

KU Leuven

A. Zijlstra

University of Manchester

The University of Hong Kong

A. Baudry

University of Bordeaux

J. Bolte

KU Leuven

E. Cannon

KU Leuven

Elvire de Beck

Chalmers, Space, Earth and Environment, Astronomy and Plasmaphysics, Galactic Astrophysics

F. De Ceuster

University College London (UCL)

KU Leuven

A. de Koter

University of Amsterdam

KU Leuven

J. De Ridder

KU Leuven

S. Etoka

University of Manchester

D. Gobrecht

KU Leuven

M. D. Gray

University of Manchester

National Astronomical Research Institute of Thailand

F. Herpin

University of Bordeaux

M. Jeste

Max Planck Society

E. Lagadec

Observatoire de la Cote d'Azur

P. Kervella

Université Paris PSL

Theo Khouri

Chalmers, Space, Earth and Environment, Astronomy and Plasmaphysics, Galactic Astrophysics

K. Menten

Max Planck Society

T.J. Millar

Queen's University Belfast

Holger Muller

University of Cologne

J. M. C. Plane

University of Leeds

R. Sahai

Jet Propulsion Laboratory, California Institute of Technology

H. Sana

KU Leuven

M. Van De Sande

KU Leuven

Lbfm Waters

University of Amsterdam

Netherlands Institute for Space Research (SRON)

K. T. Wong

Institut de Radioastronomie Millimétrique (IRAM)

J. A. Yates

University College London (UCL)

Science

0036-8075 (ISSN)

Vol. 369 6509 1497-1500

Subject Categories

Meteorology and Atmospheric Sciences

Astronomy, Astrophysics and Cosmology

Infrastructure

Onsala Space Observatory

DOI

10.1126/science.abb1229

PubMed

32943524

More information

Latest update

11/17/2020