期刊论文详细信息
Publications of the Astronomical Society of Australia
The Near-Infrared Surface Brightness Distribution of NGC 4696
Pablo Arnalte Mur1 
[1] Simon C. Ellis
关键词: galaxies: elliptical and lenticular;    cD;    galaxies: fundamental parameters;    galaxies: halos;    galaxies: individual (NGC 4696);    galaxies: photometry;    galaxies: structure;   
DOI  :  10.1071/AS05037
学科分类:天文学(综合)
来源: CSIRO
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【 摘 要 】

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 h70−1 kpc). The profile is well described by a de Vaucouleurs law, with an effective radius of 35.3 ± 1.0 h70−1 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.

【 授权许可】

Unknown   

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