NGC 6251 at multiple scales and wavelengths

Details NGC 6251 at multiple scales and wavelengths NGC 6251 at multiple scales and wavelengths

2000-11-02

arxiv.org/abs/astro-ph/0011054v1

Astronomy and Astrophysics

Astrophysics

4 pages, 2 figures, uses newpasp.sty (included) and epsf. To appear in 'Particles and Fields in Radio Galaxies' (Oxford, UK, 2

Scientific paper

We have studied the FR I radio galaxy NGC 6251 and its environment at several wavelengths and scale lengths. On the large scale, we have probed the gravity field by measuring the velocity dispersion of the cluster members associated with NGC 6251 and relating this to the cluster's X-ray emission. On the small scale, the gravitational information is provided by cold HI near the nucleus and the distribution of stars and gas near the centre of the galaxy. The cold HI gas which we have measured explains the absorption of the central X-ray emission and is consistent with the extinction through the recently discovered HST gas disc of NGC 6251.

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