The dark halo in the elliptical galaxy NGC 3108

Details The dark halo in the elliptical galaxy NGC 3108 The dark halo in the elliptical galaxy NGC 3108

Jul 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004iaus..220..177j&link_type=abstract

International Astronomical Union Symposium no. 220, held 21 - 25 July, 2003 in Sydney, Australia. Eds: S. D. Ryder, D. J. Pisano

Astronomy and Astrophysics

Astronomy

2

Scientific paper

We investigate the properties of the dark halo of the dust-lane elliptical galaxy NGC 3108. This galaxy contains a large massive gaseous disk, which shows rapid and regular rotation. That makes NGC 3108 a target for measurements usually feasible only for spriral galaxies. Combining spectroscopic measurements of the disk in the optical- and the radio regime, we provide a reliable rotation curve of the galaxy out to 3 R_eff and show that the rotation curve does not decline up to a radius of 5.5 R_eff corresponding to 28 kpc

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