The Hercules satellite: a stellar stream in the Milky Way halo?

We investigate the possibility that the recently discovered Hercules Milky Way (MW) satellite is in fact a stellar stream in formation, thereby explaining its very elongated shape with an axis ratio of 3:1. Under the assumption that Hercules is a stellar stream and that its stars are flowing along t...

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Autori principali: Martin, Nicolas F. (Autore) , Jin, Shoko (Autore)
Natura: Article (Journal)
Lingua:inglese
Pubblicazione: 2010 September 9
In: The astrophysical journal
Year: 2010, Volume: 721, Fascicolo: 2, Pages: 1333-1339
ISSN:1538-4357
DOI:10.1088/0004-637X/721/2/1333
Accesso online:Resolving-System, lizenzpflichtig, Volltext: https://doi.org/10.1088/0004-637X/721/2/1333
Verlag, lizenzpflichtig, Volltext: https://iopscience.iop.org/article/10.1088/0004-637X/721/2/1333
Testo
Note sull'autore:Nicolas F. Martin and Shoko Jin
Descrizione
Riassunto:We investigate the possibility that the recently discovered Hercules Milky Way (MW) satellite is in fact a stellar stream in formation, thereby explaining its very elongated shape with an axis ratio of 3:1. Under the assumption that Hercules is a stellar stream and that its stars are flowing along the orbit of its progenitor, we find an orbit that would have recently brought the system close enough to the MW to induce its disruption and transformation from a bound dwarf galaxy into a stellar stream.
Descrizione del documento:Gesehen am 23.05.2023
Descrizione fisica:Online Resource
ISSN:1538-4357
DOI:10.1088/0004-637X/721/2/1333