A Comparison of Simple Galaxy Mass Estimators
| dc.creator | Weil, Melinda L. | |
| dc.date | 1998-11-02 | |
| dc.date.accessioned | 2026-07-07T02:28:53Z | |
| dc.date.available | 2026-07-07T02:28:53Z | |
| dc.description | 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. | |
| dc.description | 3 pages, LaTeX, requires paspconf.sty, 1 PostScript figure, to appear in the proceedings of "Galaxy Dynamics", conference held at Rutgers, 08/98 | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9811032 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9811032 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/13248 | |
| dc.subject | Astrophysics | |
| dc.title | A Comparison of Simple Galaxy Mass Estimators | |
| dc.type | text |