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 | |
【 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
【 预 览 】
Files | Size | Format | View |
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RO201912040531900ZK.pdf | 411KB | download |