The shape of the dark matter halo of NGC 4244

Details The shape of the dark matter halo of NGC 4244 The shape of the dark matter halo of NGC 4244

Jul 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aipc..336..121o&link_type=abstract

Dark matter. AIP Conference Proceedings, Volume 336, pp. 121-124 (1995).

Computer Science

4

Dark Matter, Spiral Galaxies, Galactic Halos

Scientific paper

We present a preliminary analysis of the flaring behavior of the hydrogen layer of the nearby almost edge-on (i~=85°) Sc galaxy NGC 4244 (Fig. 1). We developed a new technique to determine the inclination and the thickness of the gas layer from many channels simultaneously. Furthermore we show that this method is not limited to edge-on galaxies only. Each side of the galaxy has been analyzed separately. Comparing the measured thickness of the hydrogen layer with model predictions we conclude that the galaxy mass model which reproduces the measured widths best is composed of a stellar disk which is about one-third as massive as maximum-disk and a DM-halo with q=0.5+/-0.3.

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