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Paper: Tracing the Tidal Streams of the Sagittarius dSph with Long-Period Variable Carbon Stars
Volume: 497, Why Galaxies Care about AGB Stars III: A Closer Look in Space and Time
Page: 467
Authors: Huxor, A. P.; Grebel, E. K.
Abstract: We have used Catalina Surveys variability data to study a sample of 121 spectroscopically-confirmed high-latitude carbon stars drawn from the literature. From their periods we estimate their distances. We find that the great majority of these can be attributed to the tidal tails of the Sagittarius dwarf spheroidal galaxy, as represented by the Law & Majewski (2010) simulation. However, our sample does not appear across the full extent of this model, suggesting possible shortcomings, especially near the predicted apocenter of the trailing arm. Other carbon stars appear to be associated with other previously known substructures, while a handful may indicate previously unknown features.
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