The impact of selective mass loss on the age determination of star clusters

P. Anders; H.J.G.L.M. Lamers; R. Grijs

The impact of selective mass loss on the age determination of star clusters

P. Anders, H.J.G.L.M. Lamers, R. Grijs

Dept of Physics

extern

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

Abstract

Dynamical models and observations of star cluster evolution show clear signs of mass segregation (in the sense that high-mass stars tend to be found towards the cluster center, and low-mass stars preferentially occupy the cluster outskirts). The low-mass stars in the cluster outskirts get stripped off more easily by interaction with the gravitational potential of their host galaxy. This alters the stellar mass function within the cluster, therefore changes its spectrophotometry, altering the cluster ages determined when the new spectrophotometry is compared to standard evolutionary synthesis models. These age changes can amount up to a factor of ten (in the most extreme cases).

Original language	Undefined/Unknown
Title of host publication	Mass loss from stars and the evolution of stellar clusters : proceedings of a workshop held at Lunteren, The Netherlands 29 May - 1 June 2006
Editors	A. de Koter, L.J. Smith, L.B.F.M. Waters
Place of Publication	San Francisco
Publisher	Astronomical Society of the Pacific
Pages	345-252
Number of pages	471
ISBN (Print)	978-1-58381-644-8
Publication status	Published - 2008

Publication series

Name	Astronomical Society of the Pacific conference series
Number	388

Access to Document

345
Open Access (free)
Final published version, 199 KB

Cite this

Anders, P., Lamers, H. J. G. L. M., & Grijs, R. (2008). The impact of selective mass loss on the age determination of star clusters. In A. de Koter, L. J. Smith, & L. B. F. M. Waters (Eds.), Mass loss from stars and the evolution of stellar clusters : proceedings of a workshop held at Lunteren, The Netherlands 29 May - 1 June 2006 (pp. 345-252). (Astronomical Society of the Pacific conference series; No. 388). Astronomical Society of the Pacific.

Anders, P. ; Lamers, H.J.G.L.M. ; Grijs, R. / The impact of selective mass loss on the age determination of star clusters. Mass loss from stars and the evolution of stellar clusters : proceedings of a workshop held at Lunteren, The Netherlands 29 May - 1 June 2006. editor / A. de Koter ; L.J. Smith ; L.B.F.M. Waters. San Francisco : Astronomical Society of the Pacific, 2008. pp. 345-252 (Astronomical Society of the Pacific conference series; 388).

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abstract = "Dynamical models and observations of star cluster evolution show clear signs of mass segregation (in the sense that high-mass stars tend to be found towards the cluster center, and low-mass stars preferentially occupy the cluster outskirts). The low-mass stars in the cluster outskirts get stripped off more easily by interaction with the gravitational potential of their host galaxy. This alters the stellar mass function within the cluster, therefore changes its spectrophotometry, altering the cluster ages determined when the new spectrophotometry is compared to standard evolutionary synthesis models. These age changes can amount up to a factor of ten (in the most extreme cases).",

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Anders, P, Lamers, HJGLM & Grijs, R 2008, The impact of selective mass loss on the age determination of star clusters. in A de Koter, LJ Smith & LBFM Waters (eds), Mass loss from stars and the evolution of stellar clusters : proceedings of a workshop held at Lunteren, The Netherlands 29 May - 1 June 2006. Astronomical Society of the Pacific conference series, no. 388, Astronomical Society of the Pacific, San Francisco, pp. 345-252.

The impact of selective mass loss on the age determination of star clusters. / Anders, P.; Lamers, H.J.G.L.M.; Grijs, R.
Mass loss from stars and the evolution of stellar clusters : proceedings of a workshop held at Lunteren, The Netherlands 29 May - 1 June 2006. ed. / A. de Koter; L.J. Smith; L.B.F.M. Waters. San Francisco: Astronomical Society of the Pacific, 2008. p. 345-252 (Astronomical Society of the Pacific conference series; No. 388).

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

TY - CHAP

T1 - The impact of selective mass loss on the age determination of star clusters

AU - Anders, P.

AU - Lamers, H.J.G.L.M.

AU - Grijs, R.

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N2 - Dynamical models and observations of star cluster evolution show clear signs of mass segregation (in the sense that high-mass stars tend to be found towards the cluster center, and low-mass stars preferentially occupy the cluster outskirts). The low-mass stars in the cluster outskirts get stripped off more easily by interaction with the gravitational potential of their host galaxy. This alters the stellar mass function within the cluster, therefore changes its spectrophotometry, altering the cluster ages determined when the new spectrophotometry is compared to standard evolutionary synthesis models. These age changes can amount up to a factor of ten (in the most extreme cases).

AB - Dynamical models and observations of star cluster evolution show clear signs of mass segregation (in the sense that high-mass stars tend to be found towards the cluster center, and low-mass stars preferentially occupy the cluster outskirts). The low-mass stars in the cluster outskirts get stripped off more easily by interaction with the gravitational potential of their host galaxy. This alters the stellar mass function within the cluster, therefore changes its spectrophotometry, altering the cluster ages determined when the new spectrophotometry is compared to standard evolutionary synthesis models. These age changes can amount up to a factor of ten (in the most extreme cases).

M3 - Chapter

SN - 978-1-58381-644-8

T3 - Astronomical Society of the Pacific conference series

SP - 345

EP - 252

BT - Mass loss from stars and the evolution of stellar clusters : proceedings of a workshop held at Lunteren, The Netherlands 29 May - 1 June 2006

A2 - de Koter, A.

A2 - Smith, L.J.

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PB - Astronomical Society of the Pacific

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Anders P, Lamers HJGLM, Grijs R. The impact of selective mass loss on the age determination of star clusters. In de Koter A, Smith LJ, Waters LBFM, editors, Mass loss from stars and the evolution of stellar clusters : proceedings of a workshop held at Lunteren, The Netherlands 29 May - 1 June 2006. San Francisco: Astronomical Society of the Pacific. 2008. p. 345-252. (Astronomical Society of the Pacific conference series; 388).