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

A. P. Huxor; E. K. Grebel

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

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

^*Corresponding author for this work

Faculty of Computing, Engineering and Science

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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.

Original language	English
Title of host publication	Why Galaxies Care about AGB Stars III
Subtitle of host publication	A Closer Look in Space and Time - Proceedings of a conference held 28 July-1 August 2014, at University Campus, Vienna, Austria
Editors	F Kerschbaum, RF Wing, J Hron
Publisher	ASTRONOMICAL SOC PACIFIC
Pages	467-472
Number of pages	6
ISBN (Print)	978-1-58381-878-7
Publication status	Published - 31 Aug 2015
Event	Conference on Why Galaxies Care About AGB Stars III: A Closer Look in Space and Time - Vienna, Austria Duration: 28 Jul 2014 → 1 Aug 2014

Publication series

Name	Astronomical Society of the Pacific Conference Series
Publisher	ASTRONOMICAL SOC PACIFIC
Volume	497

Conference

Conference	Conference on Why Galaxies Care About AGB Stars III: A Closer Look in Space and Time
Country/Territory	Austria
City	Vienna
Period	28/07/14 → 1/08/14

Keywords

MILKY-WAY HALO
ALL-SKY SURVEY
GALACTIC HALO
CATALINA SURVEYS
DWARF GALAXY
2MASS
FIELD
VIEW
KPC
RED

Cite this

Huxor, A. P., & Grebel, E. K. (2015). Tracing the Tidal Streams of the Sagittarius dSph with Long-Period Variable Carbon Stars. In F. Kerschbaum, RF. Wing, & J. Hron (Eds.), Why Galaxies Care about AGB Stars III: A Closer Look in Space and Time - Proceedings of a conference held 28 July-1 August 2014, at University Campus, Vienna, Austria (pp. 467-472). (Astronomical Society of the Pacific Conference Series; Vol. 497). ASTRONOMICAL SOC PACIFIC.

Huxor, A. P. ; Grebel, E. K. / Tracing the Tidal Streams of the Sagittarius dSph with Long-Period Variable Carbon Stars. Why Galaxies Care about AGB Stars III: A Closer Look in Space and Time - Proceedings of a conference held 28 July-1 August 2014, at University Campus, Vienna, Austria. editor / F Kerschbaum ; RF Wing ; J Hron. ASTRONOMICAL SOC PACIFIC, 2015. pp. 467-472 (Astronomical Society of the Pacific Conference Series).

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title = "Tracing the Tidal Streams of the Sagittarius dSph with Long-Period Variable Carbon Stars",

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.",

keywords = "MILKY-WAY HALO, ALL-SKY SURVEY, GALACTIC HALO, CATALINA SURVEYS, DWARF GALAXY, 2MASS, FIELD, VIEW, KPC, RED",

author = "Huxor, {A. P.} and Grebel, {E. K.}",

year = "2015",

month = aug,

day = "31",

language = "English",

isbn = "978-1-58381-878-7",

series = "Astronomical Society of the Pacific Conference Series",

publisher = "ASTRONOMICAL SOC PACIFIC",

pages = "467--472",

editor = "F Kerschbaum and RF Wing and J Hron",

booktitle = "Why Galaxies Care about AGB Stars III",

note = "Conference on Why Galaxies Care About AGB Stars III: A Closer Look in Space and Time ; Conference date: 28-07-2014 Through 01-08-2014",

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Huxor, AP & Grebel, EK 2015, Tracing the Tidal Streams of the Sagittarius dSph with Long-Period Variable Carbon Stars. in F Kerschbaum, RF Wing & J Hron (eds), Why Galaxies Care about AGB Stars III: A Closer Look in Space and Time - Proceedings of a conference held 28 July-1 August 2014, at University Campus, Vienna, Austria. Astronomical Society of the Pacific Conference Series, vol. 497, ASTRONOMICAL SOC PACIFIC, pp. 467-472, Conference on Why Galaxies Care About AGB Stars III: A Closer Look in Space and Time, Vienna, Austria, 28/07/14.

Tracing the Tidal Streams of the Sagittarius dSph with Long-Period Variable Carbon Stars. / Huxor, A. P.; Grebel, E. K.
Why Galaxies Care about AGB Stars III: A Closer Look in Space and Time - Proceedings of a conference held 28 July-1 August 2014, at University Campus, Vienna, Austria. ed. / F Kerschbaum; RF Wing; J Hron. ASTRONOMICAL SOC PACIFIC, 2015. p. 467-472 (Astronomical Society of the Pacific Conference Series; Vol. 497).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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T1 - Tracing the Tidal Streams of the Sagittarius dSph with Long-Period Variable Carbon Stars

AU - Huxor, A. P.

AU - Grebel, E. K.

PY - 2015/8/31

Y1 - 2015/8/31

N2 - 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.

AB - 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.

KW - MILKY-WAY HALO

KW - ALL-SKY SURVEY

KW - GALACTIC HALO

KW - CATALINA SURVEYS

KW - DWARF GALAXY

KW - 2MASS

KW - FIELD

KW - VIEW

KW - KPC

KW - RED

M3 - Conference contribution

SN - 978-1-58381-878-7

T3 - Astronomical Society of the Pacific Conference Series

SP - 467

EP - 472

BT - Why Galaxies Care about AGB Stars III

A2 - Kerschbaum, F

A2 - Wing, RF

A2 - Hron, J

PB - ASTRONOMICAL SOC PACIFIC

T2 - Conference on Why Galaxies Care About AGB Stars III: A Closer Look in Space and Time

Y2 - 28 July 2014 through 1 August 2014

ER -

Huxor AP, Grebel EK. Tracing the Tidal Streams of the Sagittarius dSph with Long-Period Variable Carbon Stars. In Kerschbaum F, Wing RF, Hron J, editors, Why Galaxies Care about AGB Stars III: A Closer Look in Space and Time - Proceedings of a conference held 28 July-1 August 2014, at University Campus, Vienna, Austria. ASTRONOMICAL SOC PACIFIC. 2015. p. 467-472. (Astronomical Society of the Pacific Conference Series).

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

Abstract

Publication series

Conference

Keywords

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Cite this