Near-IR age-dating of red supergiant-dominated stellar populations

Ariane Lançon; Jay S. Gallagher; Moustapha Mouhcine; Linda J. Smith; Djazia Ladjal; Richard De Grijs

doi:10.1007/s10509-009-0113-8

Near-IR age-dating of red supergiant-dominated stellar populations

Ariane Lançon^*, Jay S. Gallagher, Moustapha Mouhcine, Linda J. Smith, Djazia Ladjal, Richard De Grijs

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

We present new spectral synthesis models for solar metallicity stellar populations, based on a library of stellar spectra that extends across near-IR wavelengths out to 2.4 μm at a resolution approaching 1000. We show that the spectra of massive star clusters in the starburst galaxy M 82 can be reproduced very well with these models. We compare near-IR spectroscopic ages with optical ages, and dis- cuss the main sources of (systematic) errors that still affect those ages.

Original language	English
Pages (from-to)	241-245
Number of pages	5
Journal	Astrophysics and Space Science
Volume	324
Issue number	2-4
DOIs	https://doi.org/10.1007/s10509-009-0113-8
Publication status	Published - Nov 2009
Externally published	Yes

Keywords

star clusters
starburst galaxies
spectral synthesis
near-infrared spectra
red supergiants

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10.1007/s10509-009-0113-8

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title = "Near-IR age-dating of red supergiant-dominated stellar populations",

abstract = "We present new spectral synthesis models for solar metallicity stellar populations, based on a library of stellar spectra that extends across near-IR wavelengths out to 2.4 μm at a resolution approaching 1000. We show that the spectra of massive star clusters in the starburst galaxy M 82 can be reproduced very well with these models. We compare near-IR spectroscopic ages with optical ages, and dis- cuss the main sources of (systematic) errors that still affect those ages.",

keywords = "star clusters, starburst galaxies, spectral synthesis, near-infrared spectra, red supergiants",

author = "Ariane Lan{\c c}on and Gallagher, {Jay S.} and Moustapha Mouhcine and Smith, {Linda J.} and Djazia Ladjal and {De Grijs}, Richard",

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month = nov,

doi = "10.1007/s10509-009-0113-8",

language = "English",

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T1 - Near-IR age-dating of red supergiant-dominated stellar populations

AU - Lançon, Ariane

AU - Gallagher, Jay S.

AU - Mouhcine, Moustapha

AU - Smith, Linda J.

AU - Ladjal, Djazia

AU - De Grijs, Richard

PY - 2009/11

Y1 - 2009/11

N2 - We present new spectral synthesis models for solar metallicity stellar populations, based on a library of stellar spectra that extends across near-IR wavelengths out to 2.4 μm at a resolution approaching 1000. We show that the spectra of massive star clusters in the starburst galaxy M 82 can be reproduced very well with these models. We compare near-IR spectroscopic ages with optical ages, and dis- cuss the main sources of (systematic) errors that still affect those ages.

AB - We present new spectral synthesis models for solar metallicity stellar populations, based on a library of stellar spectra that extends across near-IR wavelengths out to 2.4 μm at a resolution approaching 1000. We show that the spectra of massive star clusters in the starburst galaxy M 82 can be reproduced very well with these models. We compare near-IR spectroscopic ages with optical ages, and dis- cuss the main sources of (systematic) errors that still affect those ages.

KW - star clusters

KW - starburst galaxies

KW - spectral synthesis

KW - near-infrared spectra

KW - red supergiants

UR - http://www.scopus.com/inward/record.url?scp=84883522407&partnerID=8YFLogxK

U2 - 10.1007/s10509-009-0113-8

DO - 10.1007/s10509-009-0113-8

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SP - 241

EP - 245

JO - Astrophysics and Space Science

JF - Astrophysics and Space Science

SN - 0004-640X

IS - 2-4

ER -

Near-IR age-dating of red supergiant-dominated stellar populations

Abstract

Keywords

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