Astronomy and Astrophysics – Astrophysics
Scientific paper
1998-11-02
Astronomy and Astrophysics
Astrophysics
3 pages, LaTeX, requires paspconf.sty, 1 PostScript figure, to appear in the proceedings of "Galaxy Dynamics", conference held
Scientific paper
The virial, projected and spherical Jeans equation galaxy mass estimators are compared. High-resolution models of elliptical galaxies from N-body simulations are used to compare predicted mass profiles. Averages over eight models and directions in the three intrinsic projections show that all the mass estimators are comparably poor for r<4 kpc but that, with the exception of the projected mass estimator, errors are within approximately 10 - 20% out to r=40 kpc. Because kinematic data for elliptical galaxies are now available out to several effective radii, mass estimation techniques which are simple to apply can provide mass profiles and mass-to-light ratios at large radii.
No associations
LandOfFree
A Comparison of Simple Galaxy Mass Estimators 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 A Comparison of Simple Galaxy Mass Estimators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Comparison of Simple Galaxy Mass Estimators will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-591981