M. Niederste-Ostholt

TL;DR: In this article, the path of the Sagittarius (Sgr) stream across the sky in Sloan Digital Sky Survey data is followed using a variety of stellar tracers, including blue horizontal branch stars, main-sequence turn-off stars and red giants.

TL;DR: In this paper, the structure of the Sagittarius stream in the Southern Galactic hemisphere is analyzed with the Sloan Digital Sky Survey Data Release 8 (SDSD 8) using both photometric and spectroscopic data, and it is shown that the blue straggler population belongs mainly to Sagittaris and the blue horizontal branch stars belong mainly to the Cetus stream in this confused location in the halo.

TL;DR: In this article, N-body simulations were used to explore the possibility that the Sagittarius (Sgr) dwarf galaxy was originally a late-type, rotating disc galaxy, rather than a nonrotating, pressure-supported dwarf spheroidal galaxy, as previously thought.

TL;DR: In this article, the Sagittarius (Sgr) dwarf galaxy was reassemble using the Sloan Digital Sky Survey and Two Micron All-Sky Survey data to find the total luminosity and likely mass.

TL;DR: In this article, N-body simulations were used to explore the possibility that the Sagittarius (Sgr) dwarf galaxy was originally a late-type, rotating disc galaxy, rather than a nonrotating, pressure-supported dwarf spheroidal galaxy, as previously thought.