Astronomy and Astrophysics – Astronomy
Scientific paper
May 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...210.8402s&link_type=abstract
American Astronomical Society Meeting 210, #84.02; Bulletin of the American Astronomical Society, Vol. 39, p.193
Astronomy and Astrophysics
Astronomy
1
Scientific paper
We describe a technique to search in mass-space for the combination of masses of galaxies and groups out to the Virgo Cluster distance that results in model peculiar velocities from Numerical (Least) Action Methods that are in best correspondence with the observed redshifts. We now have accurate TRGB and Cepheid distances for many galaxies in this local volume, therefore accurate models of the flow history of galaxies can be calculated. We use present location and the assumption of low peculiar velocities at early times to derive orbits and thus present velocities. The problem is unconstrained because the individual masses of galaxies are unknown, but a downhill simplex minimization through mass-space with a Chi^2 based on redshifts estimate these total masses. The total masses are, of course, mostly comprised of dark matter.
Peel Alan
Shaya Edward J.
No associations
LandOfFree
Solving For The Dynamic Masses Of Galaxies With NAM. 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 Solving For The Dynamic Masses Of Galaxies With NAM., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solving For The Dynamic Masses Of Galaxies With NAM. will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1032319