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

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 proceeding › Conference proceeding contribution › peer-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 language	English
Title of host publication	Highlights of astronomy
Subtitle of host publication	vol. 13 : as presented at the XXVth General Assembly of the IAU, 2003
Editors	Oddbjørn Engvold
Place of Publication	San Francisco, CA
Publisher	Astronomical Society of the Pacific
Pages	203
Number of pages	1
ISBN (Print)	1583811893, 9781583811894
Publication status	Published - 2005
Externally published	Yes
Event	25th General Assembly of the International-Astronomical-Union - Sydney, Australia Duration: 13 Jul 2003 → 26 Jul 2003

Conference

Conference	25th General Assembly of the International-Astronomical-Union
Country/Territory	Australia
City	Sydney
Period	13/07/03 → 26/07/03

Cite this

@inproceedings{6e529ff76044477d98ea43898a8067d1,

title = "The spectra of bright near-IR clusters in M82",

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.",

author = "A. Lancon and M. Mouhcine and E. Chan{\'e} and Smith, {L. J.} and Gallagher, {J. S.} and {F{\"o}rster Schreiber}, N. and W. Vacca and {de Grijs}, R. and O'Connell, {R. W.}",

year = "2005",

language = "English",

isbn = "1583811893",

pages = "203",

editor = "Oddbj{\o}rn Engvold",

booktitle = "Highlights of astronomy",

publisher = "Astronomical Society of the Pacific",

note = "25th General Assembly of the International-Astronomical-Union ; Conference date: 13-07-2003 Through 26-07-2003",

}

Lancon, A, Mouhcine, M, Chané, E, Smith, LJ, Gallagher, JS, Förster Schreiber, N, Vacca, W, de Grijs, R & O'Connell, RW 2005, The spectra of bright near-IR clusters in M82. in O Engvold (ed.), Highlights of astronomy: vol. 13 : as presented at the XXVth General Assembly of the IAU, 2003. Astronomical Society of the Pacific, San Francisco, CA, pp. 203, 25th General Assembly of the International-Astronomical-Union, Sydney, Australia, 13/07/03.

The spectra of bright near-IR clusters in M82. / Lancon, A.; Mouhcine, M.; Chané, E. et al.
Highlights of astronomy: vol. 13 : as presented at the XXVth General Assembly of the IAU, 2003. ed. / Oddbjørn Engvold. San Francisco, CA: Astronomical Society of the Pacific, 2005. p. 203.

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

TY - GEN

T1 - The spectra of bright near-IR clusters in M82

AU - Lancon, A.

AU - Mouhcine, M.

AU - Chané, E.

AU - Smith, L. J.

AU - Gallagher, J. S.

AU - Förster Schreiber, N.

AU - Vacca, W.

AU - de Grijs, R.

AU - O'Connell, R. W.

PY - 2005

Y1 - 2005

N2 - 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.

AB - 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.

M3 - Conference proceeding contribution

SN - 1583811893

SN - 9781583811894

SP - 203

BT - Highlights of astronomy

A2 - Engvold, Oddbjørn

PB - Astronomical Society of the Pacific

CY - San Francisco, CA

T2 - 25th General Assembly of the International-Astronomical-Union

Y2 - 13 July 2003 through 26 July 2003

ER -

The spectra of bright near-IR clusters in M82

Abstract

Conference

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