Tracing the Tidal Streams of the Sagittarius dSph with Long-Period Variable Carbon Stars

A. P. Huxor*, E. K. Grebel

*Awdur cyfatebol y gwaith hwn

Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddCyfraniad i gynhadleddadolygiad gan gymheiriaid

Crynodeb

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.

Iaith wreiddiolSaesneg
TeitlWhy Galaxies Care about AGB Stars III
Is-deitlA Closer Look in Space and Time - Proceedings of a conference held 28 July-1 August 2014, at University Campus, Vienna, Austria
GolygyddionF Kerschbaum, RF Wing, J Hron
CyhoeddwrASTRONOMICAL SOC PACIFIC
Tudalennau467-472
Nifer y tudalennau6
ISBN (Argraffiad)978-1-58381-878-7
StatwsCyhoeddwyd - 31 Awst 2015
DigwyddiadConference on Why Galaxies Care About AGB Stars III: A Closer Look in Space and Time - Vienna, Awstria
Hyd: 28 Jul 20141 Aug 2014

Cyfres gyhoeddiadau

EnwAstronomical Society of the Pacific Conference Series
CyhoeddwrASTRONOMICAL SOC PACIFIC
Cyfrol497

Cynhadledd

CynhadleddConference on Why Galaxies Care About AGB Stars III: A Closer Look in Space and Time
Gwlad/TiriogaethAwstria
DinasVienna
Cyfnod28/07/141/08/14

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