The Near-infrared surface brightness distribution of NGC 4696

Pablo Arnalte Mur; Simon C. Ellis; Matthew Colless

doi:10.1071/AS05037

The Near-infrared surface brightness distribution of NGC 4696

Pablo Arnalte Mur^*, Simon C. Ellis, Matthew Colless

^*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

We present H-band observations of the elliptical galaxy NGC 4696, the brightest member of the Centaurus cluster of galaxies. We have measured its light profile, using a two-dimensional fitting algorithm, out to a radius of 180 arcsec (37 h ₇₀ ^-1 kpc). The profile is well described by a de Vaucouleurs law, with an effective radius of 35.3 ± 1.0 h ₇₀ ^-1 kpc. There is no need for the extra free parameter allowed by a Sérsic law. Allowing for a variation of 0.3? in the sky level, the profile obtained is compatible with data from the Two-Micron All Sky Survey (2MASS). The profile shows no sign of either a truncation or an extended halo.

Original language	English
Pages (from-to)	33-37
Number of pages	5
Journal	Publications of the Astronomical Society of Australia
Volume	23
Issue number	1
DOIs	https://doi.org/10.1071/AS05037
Publication status	Published - 10 Apr 2006
Externally published	Yes

Keywords

Galaxies: elliptical and lenticular, cD
Galaxies: fundamental parameters
Galaxies: halos
Galaxies: individual (NGC 4696)
Galaxies: photometry
Galaxies: structure

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10.1071/AS05037

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title = "The Near-infrared surface brightness distribution of NGC 4696",

abstract = "We present H-band observations of the elliptical galaxy NGC 4696, the brightest member of the Centaurus cluster of galaxies. We have measured its light profile, using a two-dimensional fitting algorithm, out to a radius of 180 arcsec (37 h 70 -1 kpc). The profile is well described by a de Vaucouleurs law, with an effective radius of 35.3 ± 1.0 h 70 -1 kpc. There is no need for the extra free parameter allowed by a S{\'e}rsic law. Allowing for a variation of 0.3? in the sky level, the profile obtained is compatible with data from the Two-Micron All Sky Survey (2MASS). The profile shows no sign of either a truncation or an extended halo.",

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doi = "10.1071/AS05037",

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TY - JOUR

T1 - The Near-infrared surface brightness distribution of NGC 4696

AU - Mur, Pablo Arnalte

AU - Ellis, Simon C.

AU - Colless, Matthew

PY - 2006/4/10

Y1 - 2006/4/10

N2 - We present H-band observations of the elliptical galaxy NGC 4696, the brightest member of the Centaurus cluster of galaxies. We have measured its light profile, using a two-dimensional fitting algorithm, out to a radius of 180 arcsec (37 h 70 -1 kpc). The profile is well described by a de Vaucouleurs law, with an effective radius of 35.3 ± 1.0 h 70 -1 kpc. There is no need for the extra free parameter allowed by a Sérsic law. Allowing for a variation of 0.3? in the sky level, the profile obtained is compatible with data from the Two-Micron All Sky Survey (2MASS). The profile shows no sign of either a truncation or an extended halo.

AB - We present H-band observations of the elliptical galaxy NGC 4696, the brightest member of the Centaurus cluster of galaxies. We have measured its light profile, using a two-dimensional fitting algorithm, out to a radius of 180 arcsec (37 h 70 -1 kpc). The profile is well described by a de Vaucouleurs law, with an effective radius of 35.3 ± 1.0 h 70 -1 kpc. There is no need for the extra free parameter allowed by a Sérsic law. Allowing for a variation of 0.3? in the sky level, the profile obtained is compatible with data from the Two-Micron All Sky Survey (2MASS). The profile shows no sign of either a truncation or an extended halo.

KW - Galaxies: elliptical and lenticular, cD

KW - Galaxies: fundamental parameters

KW - Galaxies: halos

KW - Galaxies: individual (NGC 4696)

KW - Galaxies: photometry

KW - Galaxies: structure

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DO - 10.1071/AS05037

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JO - Publications of the Astronomical Society of Australia

JF - Publications of the Astronomical Society of Australia

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The Near-infrared surface brightness distribution of NGC 4696

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Keywords

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