Pulsation and Mass Loss of AGB Stars in the Magellanic Cloud Clusters NGC 1978 and NGC 419

Devika Kamath; Peter Wood; Igor SoszyÅ„ski; Thomas Lebzelter

Pulsation and Mass Loss of AGB Stars in the Magellanic Cloud Clusters NGC 1978 and NGC 419

Devika Kamath, Peter Wood, Igor SoszyÅ„ski, Thomas Lebzelter

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

Abstract

We present results of a study of asymptotic giant branch (AGB) stars in the Magellanic Cloud clusters NGC 1978 and NGC 419. The aim of this work is to use pulsation analysis as a means to study mass-loss on the AGB. We derive pulsation masses for the AGB variables, from the lowest luminosity O-rich variables to the most evolved infrared sources. Our studies show that reliable pulsation masses can be determined for AGB stars. We also use non-linear pulsation models to fit the highly evolved AGB stars. Our models show that a substantial amount of mass loss has occurred during the AGB evolution of these stars. We compare our results to commonly-used mass-loss formulae such as those of Vassiliadis & Wood (1993) and Blocker (1995).

Original language	English
Title of host publication	Why Galaxies Care about AGB Stars II: Shining Examples and Common Inhabitants: Proceedings
Editors	F. Kerschbaum, T. Lebzelter, and R.F. Wing. San Francisco
Place of Publication	San Francisco, United States
Publisher	Astronomical Society of the Pacific
Pages	127-132pp
Edition	Not Peer Reviewed
ISBN (Print)	9781583817704
Publication status	Published - 2011
Event	Why Galaxies Care about AGB Stars II: Shining Examples and Common Inhabitants - Vienna, Austria, Australia Duration: 1 Jan 2011 → …

Conference

Conference	Why Galaxies Care about AGB Stars II: Shining Examples and Common Inhabitants
Country/Territory	Australia
Period	1/01/11 → …
Other	August 16-20 2010

Cite this

Kamath, Devika ; Wood, Peter ; SoszyÅ„ski, Igor et al. / Pulsation and Mass Loss of AGB Stars in the Magellanic Cloud Clusters NGC 1978 and NGC 419. Why Galaxies Care about AGB Stars II: Shining Examples and Common Inhabitants: Proceedings. editor / F. Kerschbaum, T. Lebzelter, and R.F. Wing. San Francisco. Not Peer Reviewed. ed. San Francisco, United States : Astronomical Society of the Pacific, 2011. pp. 127-132pp

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title = "Pulsation and Mass Loss of AGB Stars in the Magellanic Cloud Clusters NGC 1978 and NGC 419",

abstract = "We present results of a study of asymptotic giant branch (AGB) stars in the Magellanic Cloud clusters NGC 1978 and NGC 419. The aim of this work is to use pulsation analysis as a means to study mass-loss on the AGB. We derive pulsation masses for the AGB variables, from the lowest luminosity O-rich variables to the most evolved infrared sources. Our studies show that reliable pulsation masses can be determined for AGB stars. We also use non-linear pulsation models to fit the highly evolved AGB stars. Our models show that a substantial amount of mass loss has occurred during the AGB evolution of these stars. We compare our results to commonly-used mass-loss formulae such as those of Vassiliadis & Wood (1993) and Blocker (1995).",

author = "Devika Kamath and Peter Wood and Igor Soszy{\AA}„ski and Thomas Lebzelter",

year = "2011",

language = "English",

isbn = "9781583817704",

pages = "127--132pp",

editor = "{F. Kerschbaum, T. Lebzelter, and R.F. Wing. San Francisco}",

booktitle = "Why Galaxies Care about AGB Stars II: Shining Examples and Common Inhabitants: Proceedings",

publisher = "Astronomical Society of the Pacific",

edition = "Not Peer Reviewed",

note = "Why Galaxies Care about AGB Stars II: Shining Examples and Common Inhabitants ; Conference date: 01-01-2011",

}

Kamath, D, Wood, P, SoszyÅ„ski, I & Lebzelter, T 2011, Pulsation and Mass Loss of AGB Stars in the Magellanic Cloud Clusters NGC 1978 and NGC 419. in FKTLARFWSF (ed.), Why Galaxies Care about AGB Stars II: Shining Examples and Common Inhabitants: Proceedings. Not Peer Reviewed edn, Astronomical Society of the Pacific, San Francisco, United States, pp. 127-132pp, Why Galaxies Care about AGB Stars II: Shining Examples and Common Inhabitants, Australia, 1/01/11.

Pulsation and Mass Loss of AGB Stars in the Magellanic Cloud Clusters NGC 1978 and NGC 419. / Kamath, Devika; Wood, Peter; SoszyÅ„ski, Igor et al.
Why Galaxies Care about AGB Stars II: Shining Examples and Common Inhabitants: Proceedings. ed. / F. Kerschbaum, T. Lebzelter, and R.F. Wing. San Francisco. Not Peer Reviewed. ed. San Francisco, United States: Astronomical Society of the Pacific, 2011. p. 127-132pp.

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

TY - GEN

T1 - Pulsation and Mass Loss of AGB Stars in the Magellanic Cloud Clusters NGC 1978 and NGC 419

AU - Kamath, Devika

AU - Wood, Peter

AU - SoszyÅ„ski, Igor

AU - Lebzelter, Thomas

PY - 2011

Y1 - 2011

N2 - We present results of a study of asymptotic giant branch (AGB) stars in the Magellanic Cloud clusters NGC 1978 and NGC 419. The aim of this work is to use pulsation analysis as a means to study mass-loss on the AGB. We derive pulsation masses for the AGB variables, from the lowest luminosity O-rich variables to the most evolved infrared sources. Our studies show that reliable pulsation masses can be determined for AGB stars. We also use non-linear pulsation models to fit the highly evolved AGB stars. Our models show that a substantial amount of mass loss has occurred during the AGB evolution of these stars. We compare our results to commonly-used mass-loss formulae such as those of Vassiliadis & Wood (1993) and Blocker (1995).

AB - We present results of a study of asymptotic giant branch (AGB) stars in the Magellanic Cloud clusters NGC 1978 and NGC 419. The aim of this work is to use pulsation analysis as a means to study mass-loss on the AGB. We derive pulsation masses for the AGB variables, from the lowest luminosity O-rich variables to the most evolved infrared sources. Our studies show that reliable pulsation masses can be determined for AGB stars. We also use non-linear pulsation models to fit the highly evolved AGB stars. Our models show that a substantial amount of mass loss has occurred during the AGB evolution of these stars. We compare our results to commonly-used mass-loss formulae such as those of Vassiliadis & Wood (1993) and Blocker (1995).

M3 - Conference contribution

SN - 9781583817704

SP - 127

EP - 132

BT - Why Galaxies Care about AGB Stars II: Shining Examples and Common Inhabitants: Proceedings

A2 - null, F. Kerschbaum, T. Lebzelter, and R.F. Wing. San Francisco

PB - Astronomical Society of the Pacific

CY - San Francisco, United States

T2 - Why Galaxies Care about AGB Stars II: Shining Examples and Common Inhabitants

Y2 - 1 January 2011

ER -

Pulsation and Mass Loss of AGB Stars in the Magellanic Cloud Clusters NGC 1978 and NGC 419

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