Tracing the origin of the aquarius stream. I
We present an abundance analysis of six member stars of the recently discovered Aquarius stream, in an attempt to ascertain whether this halo stream is real and, if so, to understand its origin. The mean metallicities of the six stars have a dispersion of only 0.10 dex, indicating that they are part of a chemically coherent structure. We then investigate whether the stream represents the debris of a disrupted dwarf galaxy or a disrupted globular cluster. The [Ni/Fe]-[Na/Fe] plane provides a...[Show more]
|Collections||ANU Research Publications|
|Source:||Astrophysical Journal, The|
|01_Wylie de Boer_Tracing_the_origin_of_the_2012.pdf||470.08 kB||Adobe PDF|
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