Stellar Evolution Through the Red Supergiant Phase

Massive stars less massive than ∼30 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>M</mi><mo>⊙</mo></msub></semantics></math></inline-formula> evolve in...

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Published in:Galaxies
Main Authors: Sylvia Ekström, Cyril Georgy
Format: Article
Language:English
Published: MDPI AG 2025-07-01
Subjects:
Online Access:https://www.mdpi.com/2075-4434/13/4/81
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author Sylvia Ekström
Cyril Georgy
author_facet Sylvia Ekström
Cyril Georgy
author_sort Sylvia Ekström
collection DOAJ
container_title Galaxies
description Massive stars less massive than ∼30 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>M</mi><mo>⊙</mo></msub></semantics></math></inline-formula> evolve into a red supergiant after the main sequence. Given a standard IMF, this means about 80% of all single massive stars will experience this phase. RSGs are dominated by convection, with a radius that may extend up to thousands of solar radii. Their low temperature and gravity make them prone to losing large amounts of mass, either through pulsationally driven wind or through mass-loss outburst. RSGs are the progenitors of the most common core-collapse supernovae, type II. In the present review, we give an overview of our theoretical understanding about this spectacular phase of massive star evolution.
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spelling doaj-art-a723c0c677754bff9bb0c848bb3684fb2025-08-27T14:30:59ZengMDPI AGGalaxies2075-44342025-07-011348110.3390/galaxies13040081Stellar Evolution Through the Red Supergiant PhaseSylvia Ekström0Cyril Georgy1Department of Astronomy, University of Geneva, Chemin Pegasi 51, 1290 Versoix, SwitzerlandDepartment of Astronomy, University of Geneva, Chemin Pegasi 51, 1290 Versoix, SwitzerlandMassive stars less massive than ∼30 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>M</mi><mo>⊙</mo></msub></semantics></math></inline-formula> evolve into a red supergiant after the main sequence. Given a standard IMF, this means about 80% of all single massive stars will experience this phase. RSGs are dominated by convection, with a radius that may extend up to thousands of solar radii. Their low temperature and gravity make them prone to losing large amounts of mass, either through pulsationally driven wind or through mass-loss outburst. RSGs are the progenitors of the most common core-collapse supernovae, type II. In the present review, we give an overview of our theoretical understanding about this spectacular phase of massive star evolution.https://www.mdpi.com/2075-4434/13/4/81stars: massivestars: supergiantsstars: evolutionstars: mass loss
spellingShingle Sylvia Ekström
Cyril Georgy
Stellar Evolution Through the Red Supergiant Phase
stars: massive
stars: supergiants
stars: evolution
stars: mass loss
title Stellar Evolution Through the Red Supergiant Phase
title_full Stellar Evolution Through the Red Supergiant Phase
title_fullStr Stellar Evolution Through the Red Supergiant Phase
title_full_unstemmed Stellar Evolution Through the Red Supergiant Phase
title_short Stellar Evolution Through the Red Supergiant Phase
title_sort stellar evolution through the red supergiant phase
topic stars: massive
stars: supergiants
stars: evolution
stars: mass loss
url https://www.mdpi.com/2075-4434/13/4/81
work_keys_str_mv AT sylviaekstrom stellarevolutionthroughtheredsupergiantphase
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