SIMBAD references

2002ApJ...577L..75M - Astrophys. J., 577, L75-L77 (2002/October-1)

Modified newtonian dynamics mass-to-light ratios for galaxy groups.


Abstract (from CDS):

I estimate modified Newtonian dynamics (MOND) M/L-values for nine galaxy groups that were recently studied by Tully et al. Instead of the large M/L-values that they find with Newtonian dynamics (up to 1200 solar units), the MOND estimates fall around 1 solar unit. Tully et al. find a systematic and significant difference between the M/L-values of groups that do not contain luminous galaxies and those that do: Dwarfs-only groups have larger M/L-values (by a factor of ∼5). The MOND M/L-values do not show this trend; the Newtonian disparity is traced back to the dwarfs-only groups having systematically smaller intrinsic accelerations (similar sizes but rather smaller velocity dispersions).

Abstract Copyright:

Journal keyword(s): Cosmology: Dark Matter - Galaxies: Kinematics and Dynamics

Simbad objects: 9

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2002ApJ...577L..75M and select 'bookmark this link' or equivalent in the popup menu


© Université de Strasbourg/CNRS

    • Contact