M32p (original) (raw)
M32p is a hypothesized former galaxy that was incorporated into the Andromeda Galaxy. It was a sister galaxy to the Milky Way and Andromeda galaxies, previously the third or fourth largest galaxy in the Local Group, and was merged into the larger Andromeda Galaxy an estimated 2 billion years ago. The merger is thought to have created the thick disc and contributed the majority of the halo stars of Andromeda and caused its burst of star formation at the time of the merger. The former galaxy may be associated with the Andromeda satellite galaxy Messier 32 (M32), which may be the remains of its dense core. M32's unusual characteristics of dense compactness and burst of star formation 2 billion years ago would be explained by this theory as a remnant of an earlier large galaxy, given its unlik
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| dbo:abstract | M32p is a hypothesized former galaxy that was incorporated into the Andromeda Galaxy. It was a sister galaxy to the Milky Way and Andromeda galaxies, previously the third or fourth largest galaxy in the Local Group, and was merged into the larger Andromeda Galaxy an estimated 2 billion years ago. The merger is thought to have created the thick disc and contributed the majority of the halo stars of Andromeda and caused its burst of star formation at the time of the merger. The former galaxy may be associated with the Andromeda satellite galaxy Messier 32 (M32), which may be the remains of its dense core. M32's unusual characteristics of dense compactness and burst of star formation 2 billion years ago would be explained by this theory as a remnant of an earlier large galaxy, given its unlikeness to other similarly sized elliptical galaxies. It was described in 2018 by scientists at the University of Michigan. It is thought to have had the stellar mass of around 2.5×1010 M☉. (en) M32p est une hypothétique ancienne galaxie qui aurait été incorporée à la galaxie d’Andromède. Elle aurait été une galaxie sœur de la Voie lactée et de la galaxie d'Andromède, la troisième plus grande galaxie du Groupe local, et aurait fusionné dans la galaxie d'Andromède (la plus grande galaxie du Groupe local) il y a environ 2 milliards d' années. On pense que la fusion a créé le disque épais et a contribué à la majorité des étoiles du halo de la galaxie d'Andromède et a provoqué son sursaut de formation d’étoiles au moment de la fusion. L'ancienne galaxie pourrait être associée à Messier 32 (M32), une galaxie satellite de la galaxie d'Andromède, qui pourrait être le reste du noyau dense de M32p, d'où la désignation « M32p » pour cette hypothétique galaxie. Les caractéristiques inhabituelles de M32 en matière de compacité dense et de sursaut de formation d'étoiles il y a 2 milliards d'années seraient expliquées par cette théorie comme un vestige d'une grande galaxie antérieure, étant donné ses différences avec d'autres galaxies elliptiques de taille similaire. Elle a été décrite en 2018 par des scientifiques de l'Université du Michigan. Sa masse a été estimée à 2,5 × 1010 M☉. (fr) |
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| dbp:name | M32p (en) |
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| rdfs:comment | M32p is a hypothesized former galaxy that was incorporated into the Andromeda Galaxy. It was a sister galaxy to the Milky Way and Andromeda galaxies, previously the third or fourth largest galaxy in the Local Group, and was merged into the larger Andromeda Galaxy an estimated 2 billion years ago. The merger is thought to have created the thick disc and contributed the majority of the halo stars of Andromeda and caused its burst of star formation at the time of the merger. The former galaxy may be associated with the Andromeda satellite galaxy Messier 32 (M32), which may be the remains of its dense core. M32's unusual characteristics of dense compactness and burst of star formation 2 billion years ago would be explained by this theory as a remnant of an earlier large galaxy, given its unlik (en) M32p est une hypothétique ancienne galaxie qui aurait été incorporée à la galaxie d’Andromède. Elle aurait été une galaxie sœur de la Voie lactée et de la galaxie d'Andromède, la troisième plus grande galaxie du Groupe local, et aurait fusionné dans la galaxie d'Andromède (la plus grande galaxie du Groupe local) il y a environ 2 milliards d' années. On pense que la fusion a créé le disque épais et a contribué à la majorité des étoiles du halo de la galaxie d'Andromède et a provoqué son sursaut de formation d’étoiles au moment de la fusion. L'ancienne galaxie pourrait être associée à Messier 32 (M32), une galaxie satellite de la galaxie d'Andromède, qui pourrait être le reste du noyau dense de M32p, d'où la désignation « M32p » pour cette hypothétique galaxie. Les caractéristiques inhabitue (fr) |
| rdfs:label | M32p (fr) M32p (en) |
| owl:sameAs | wikidata:M32p dbpedia-fr:M32p dbpedia-vi:M32p https://global.dbpedia.org/id/6AH2X |
| prov:wasDerivedFrom | wikipedia-en:M32p?oldid=1066277450&ns=0 |
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| foaf:name | M32p (en) |
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| is foaf:primaryTopic of | wikipedia-en:M32p |