Stellar distributions and NIR colours of normal galaxies

Reynier F. Peletier; Richard de Grijs

Stellar distributions and NIR colours of normal galaxies

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

Abstract

We discuss some results of a morphological study of edge-on galaxies, based on optical and especially near-infrared surface photometry. We find that the vertical surface brightness distributions of galaxies are fitted very well by exponential profiles, much better than by isothermal distributions. We find that in general the vertical scale height increases when going outward. This increase is strong for early-type spiral galaxies and very small for late types. We argue that it can be due to the presence of thick discs with scale lengths larger than the galaxy's main disc. Finally we discuss the colour-magnitude relation in I-K for spiral galaxies. We find that it is a tight relation, for which the scatter is similar to the observational uncertainties, with a steeper slope than for elliptical galaxies.

Original language	English
Title of host publication	Extragalactic astronomy in the infrared = Astronomie extragalactique dans l'infrarouge
Subtitle of host publication	proceedings of the XVIIth Rencontres de Moriond, Les Arcs, France, March 15-22, 1997
Editors	G. A. Mamon, Trinh Xuân Thuân, J. Trân Thanh Vân
Place of Publication	Paris
Publisher	Editions Frontieres
Number of pages	10
ISBN (Print)	9782863322260
Publication status	Published - 1997
Externally published	Yes

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http://hdl.handle.net/11370/7a7b2e9c-e76a-4060-8516-92138a475437

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Peletier, R. F., & de Grijs, R. (1997). Stellar distributions and NIR colours of normal galaxies. In G. A. Mamon, T. X. Thuân, & J. T. Thanh Vân (Eds.), Extragalactic astronomy in the infrared = Astronomie extragalactique dans l'infrarouge: proceedings of the XVIIth Rencontres de Moriond, Les Arcs, France, March 15-22, 1997 Editions Frontieres. http://hdl.handle.net/11370/7a7b2e9c-e76a-4060-8516-92138a475437

Peletier, Reynier F. ; de Grijs, Richard. / Stellar distributions and NIR colours of normal galaxies. Extragalactic astronomy in the infrared = Astronomie extragalactique dans l'infrarouge: proceedings of the XVIIth Rencontres de Moriond, Les Arcs, France, March 15-22, 1997. editor / G. A. Mamon ; Trinh Xuân Thuân ; J. Trân Thanh Vân. Paris : Editions Frontieres, 1997.

@inproceedings{81ec99210a1e423fb9688e12bbf65a4b,

title = "Stellar distributions and NIR colours of normal galaxies",

abstract = "We discuss some results of a morphological study of edge-on galaxies, based on optical and especially near-infrared surface photometry. We find that the vertical surface brightness distributions of galaxies are fitted very well by exponential profiles, much better than by isothermal distributions. We find that in general the vertical scale height increases when going outward. This increase is strong for early-type spiral galaxies and very small for late types. We argue that it can be due to the presence of thick discs with scale lengths larger than the galaxy's main disc. Finally we discuss the colour-magnitude relation in I-K for spiral galaxies. We find that it is a tight relation, for which the scatter is similar to the observational uncertainties, with a steeper slope than for elliptical galaxies.",

author = "Peletier, {Reynier F.} and {de Grijs}, Richard",

year = "1997",

language = "English",

isbn = "9782863322260",

editor = "Mamon, {G. A.} and Thu{\^a}n, {Trinh Xu{\^a}n} and {Thanh V{\^a}n}, {J. Tr{\^a}n}",

booktitle = "Extragalactic astronomy in the infrared = Astronomie extragalactique dans l'infrarouge",

publisher = "Editions Frontieres",

}

Peletier, RF & de Grijs, R 1997, Stellar distributions and NIR colours of normal galaxies. in GA Mamon, TX Thuân & JT Thanh Vân (eds), Extragalactic astronomy in the infrared = Astronomie extragalactique dans l'infrarouge: proceedings of the XVIIth Rencontres de Moriond, Les Arcs, France, March 15-22, 1997. Editions Frontieres, Paris. <http://hdl.handle.net/11370/7a7b2e9c-e76a-4060-8516-92138a475437>

Stellar distributions and NIR colours of normal galaxies. / Peletier, Reynier F.; de Grijs, Richard.
Extragalactic astronomy in the infrared = Astronomie extragalactique dans l'infrarouge: proceedings of the XVIIth Rencontres de Moriond, Les Arcs, France, March 15-22, 1997. ed. / G. A. Mamon; Trinh Xuân Thuân; J. Trân Thanh Vân. Paris: Editions Frontieres, 1997.

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

TY - GEN

T1 - Stellar distributions and NIR colours of normal galaxies

AU - Peletier, Reynier F.

AU - de Grijs, Richard

PY - 1997

Y1 - 1997

N2 - We discuss some results of a morphological study of edge-on galaxies, based on optical and especially near-infrared surface photometry. We find that the vertical surface brightness distributions of galaxies are fitted very well by exponential profiles, much better than by isothermal distributions. We find that in general the vertical scale height increases when going outward. This increase is strong for early-type spiral galaxies and very small for late types. We argue that it can be due to the presence of thick discs with scale lengths larger than the galaxy's main disc. Finally we discuss the colour-magnitude relation in I-K for spiral galaxies. We find that it is a tight relation, for which the scatter is similar to the observational uncertainties, with a steeper slope than for elliptical galaxies.

AB - We discuss some results of a morphological study of edge-on galaxies, based on optical and especially near-infrared surface photometry. We find that the vertical surface brightness distributions of galaxies are fitted very well by exponential profiles, much better than by isothermal distributions. We find that in general the vertical scale height increases when going outward. This increase is strong for early-type spiral galaxies and very small for late types. We argue that it can be due to the presence of thick discs with scale lengths larger than the galaxy's main disc. Finally we discuss the colour-magnitude relation in I-K for spiral galaxies. We find that it is a tight relation, for which the scatter is similar to the observational uncertainties, with a steeper slope than for elliptical galaxies.

M3 - Conference proceeding contribution

SN - 9782863322260

BT - Extragalactic astronomy in the infrared = Astronomie extragalactique dans l'infrarouge

A2 - Mamon, G. A.

A2 - Thuân, Trinh Xuân

A2 - Thanh Vân, J. Trân

PB - Editions Frontieres

CY - Paris

ER -

Stellar distributions and NIR colours of normal galaxies

Abstract

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