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- W2183617225 abstract "The Milky Way galaxy is currently colliding with several less massive dwarf galaxies, which are presently being torn apart and will eventually be absorbed into our Galaxy. Their disruption patterns provide vital clues to the make-up, formation history, and matter distribution (including dark matter) of our Galaxy. The largest and most dominant of these tidal streams are those belonging to the Sagittarius dwarf galaxy (Sgr), which wraps at least once completely around the galaxy and spans 15° of width in the sky, presenting astronomers with an excellent opportunity to test theoretical models of galaxy evolution. Using modern computational techniques on high-end computing platforms, we analyze over 4 million stars in the Sloan Digital Sky Survey in order to produce detailed descriptions of stellar densities in the Galactic halo, including the leading Sgr tidal stream. This talk will present a brief overview of hot topics in Galactic astronomy, emphasizing current progress in mapping the Galactic halo, and discuss new constraints on galaxy formation and models of dark matter." @default.
- W2183617225 created "2016-06-24" @default.
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- W2183617225 date "2012-01-01" @default.
- W2183617225 modified "2023-09-26" @default.
- W2183617225 title "PHYSICS & ASTRONOMY COLLOQUIUM UNIVERSITY OF WISCONSIN - STEVENS POINT" @default.
- W2183617225 hasPublicationYear "2012" @default.
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