Chandra Observations of NGC 4636 and the Nature of Dark Matter in Elliptical Galaxies

Details Chandra Observations of NGC 4636 and the Nature of Dark Matter in Elliptical Galaxies Chandra Observations of NGC 4636 and the Nature of Dark Matter in Elliptical Galaxies

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...199.2505l&link_type=abstract

American Astronomical Society, 199th AAS Meeting, #25.05; Bulletin of the American Astronomical Society, Vol. 33, p.1348

Other

1

Scientific paper

We utilize a combination of Chandra X-ray imaging and imaging-spectroscopy, and Newton-XMM imaging-spectroscopy, of the hot gas in NGC 4636 to constrain the dark matter distribution in this elliptical galaxy on scales ranging from 100 pc to 30 kpc. We find that dark matter comprises a significant fraction of the total mass well-inside the optical half-light radius: unlike previously studied types of galaxies, dark matter is not less concentrated than expected based on cold dark matter numerical simulations . We discuss the implications of our findings on suggestions that dark matter may be self-interacting and/or altered during the galaxy formation process by dynamical coupling to other mass components.

Affiliated with

Also associated with

No associations

Rating

Chandra Observations of NGC 4636 and the Nature of Dark Matter in Elliptical Galaxies 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 Chandra Observations of NGC 4636 and the Nature of Dark Matter in Elliptical Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chandra Observations of NGC 4636 and the Nature of Dark Matter in Elliptical Galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1230542