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Glossary term: Vestiges stellaires

Description: Le terme de vestiges stellaires désigne les naines blanches, les étoiles à neutrons et les trous noirs de masse stellaire. Ils représentent le stade final de l'évolution stellaire après qu'une étoile a terminé sa combustion d'hydrogène sur la séquence principale et qu'elle est passée par la phase géante. Les vestiges stellaires sont très compacts par rapport aux étoiles. Les naines blanches (le plus grand type de vestige stellaire) contiennent environ une masse solaire de matière dans un objet de la taille de la Terre. Les vestiges stellaires ne génèrent pas de chaleur par fusion nucléaire en leur cœur. Dans les systèmes binaires proches, les vestiges stellaires peuvent être à l'origine de novae, de supernovae de type Ia ou (si deux vestiges stellaires se rapprochent en spirale et entrent en collision) de salves d'ondes gravitationnelles.

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Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher
The translation of this term and its definition is still awaiting approval

The OAE Multilingual Glossary is a project of the IAU Office of Astronomy for Education (OAE) in collaboration with the IAU Office of Astronomy Outreach (OAO). The terms and definitions were chosen, written and reviewed by a collective effort from the OAE, the OAE Centers and Nodes, the OAE National Astronomy Education Coordinators (NAECs) and other volunteers. You can find a full list of credits here. All glossary terms and their definitions are released under a Creative Commons CC BY-4.0 license and should be credited to "IAU OAE".

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A neutron star appears as a blue spot surrounded by shells of material which appear as red and green rings

Death of a massive star

Caption: A multi-wavelength image taken with telescopes on the Earth and in space of a neutron star within our neighbouring Small Magellanic Cloud galaxy. A neutron star (seen here as the blue spot surrounded by a red ring) is the final product of gravitational collapse, compression and explosion of a massive star, left embedded in its supernova remnant (in green).
Credit: ESO/NASA, ESA and the Hubble Heritage Team (STScI/AURA)/F. Vogt et al. credit link

License: CC-BY-4.0 Creative Commons Attribution 4.0 International (CC BY 4.0) icons