The origin of ultramassive white dwarfs: hints from Gaia EDR3

Gaia Data Release 2 revealed a population of ultramassive white dwarfs on the Q branch that are moving anomalously fast for a local disc population with their young photometric ages. As the velocity dispersion of stars in the local disc increases with age, a proposed explanation of these white dwarf...

Ausführliche Beschreibung

Bibliographische Detailangaben

Veröffentlicht in:	arXiv.org 2023-04
Hauptverfasser:	Fleury, Leesa, Caiazzo, Ilaria, Heyl, Jeremy
Format:	Artikel
Sprache:	eng
Schlagworte:	Chronology Cooling Delay Dispersion Galactic rotation Kinematics Main sequence stars Physics - Astrophysics of Galaxies Physics - Solar and Stellar Astrophysics Population Solar neighborhood White dwarf stars
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!