The spectra of bright near-IR clusters in M82

A. Lancon*, M. Mouhcine, E. Chané, L. J. Smith, J. S. Gallagher, N. Förster Schreiber, W. Vacca, R. de Grijs, R. W. O'Connell

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

Abstract

Based on new spectra spanning wavelengths from 0.8 to 2.4 mu m, we study the properties of bright near-IR clusters in M82. We focus on age and extinction, which are critical parameters when one uses dynamical masses to constrain the stellar IMF. The modelling of red supergiant evolution by various authors leads to very significant differences in synthetic cluster spectra. Near-IR fluxes alone therefore do not rule out a normal IMF for cluster F, previously found to be deficient in low mass stars. Combined optical and near-IR studies are being undertaken.

Original languageEnglish
Title of host publicationHighlights of astronomy
Subtitle of host publicationvol. 13 : as presented at the XXVth General Assembly of the IAU, 2003
EditorsOddbjørn Engvold
Place of PublicationSan Francisco, CA
PublisherAstronomical Society of the Pacific
Pages203
Number of pages1
ISBN (Print)1583811893, 9781583811894
Publication statusPublished - 2005
Externally publishedYes
Event25th General Assembly of the International-Astronomical-Union - Sydney, Australia
Duration: 13 Jul 200326 Jul 2003

Conference

Conference25th General Assembly of the International-Astronomical-Union
CountryAustralia
CitySydney
Period13/07/0326/07/03

Cite this