Galactic Fountains, Galaxy Infall, and the Dark Matter Content of NGC 891

Details Galactic Fountains, Galaxy Infall, and the Dark Matter Content of NGC 891 Galactic Fountains, Galaxy Infall, and the Dark Matter Content of NGC 891

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007xmm..prop..117b&link_type=abstract

XMM-Newton Proposal ID #05539401

Other

Galaxies, Galactic Surveys, Ngc891, Xmm-Newton Proposal Id #05539401

Scientific paper

We address two important issues by studying the hot gas around the edge-on spiral NGC891. The first issue is the origin of the hot halo, which can occur by infall onto the galaxy or from a galactic fountain generated by disk SNe. We differentiate between models by measuring the gas metallicity, predicted to be low in one model and high in the other. Second, we will measure the vertical component of the galaxy's gravitational field, thereby lifting a degeneracy in mass models and permitting a unique determination of the dark matter density in the baryon-dominated region. We do this by measuring the temperature and emission measure distribution perpendicular to the disk. Existing data prove feasibility but are not sufficiently deep.

Affiliated with

Also associated with

No associations

Rating

Galactic Fountains, Galaxy Infall, and the Dark Matter Content of NGC 891 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Galactic Fountains, Galaxy Infall, and the Dark Matter Content of NGC 891, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Galactic Fountains, Galaxy Infall, and the Dark Matter Content of NGC 891 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-955284