The distribution of mass around galaxies
| dc.creator | White, Martin | |
| dc.creator | Hernquist, Lars | |
| dc.creator | Springel, Volker | |
| dc.date | 2001-07-02 | |
| dc.date.accessioned | 2026-07-07T01:59:09Z | |
| dc.date.available | 2026-07-07T01:59:09Z | |
| dc.description | We explore the distribution of mass about the expected sites of galaxy formation in a high-resolution hydrodynamical simulation of a LCDM cosmology which includes cooling, star-formation and feedback. We show that the evolution of the galaxy bias is non-trivial and non-monotonic and that the bias is stochastic. We discuss the galaxy-mass cross-correlation function and highlight problems with the interpretation of galaxy-galaxy lensing as due to extended dark matter halos around ``typical'' galaxies. Finally we show that the ``external shear'' around strong gravitational lenses is likely to be closely aligned with the direction of the nearest massive galaxy and to have a power-law distribution which can be predicted from the galaxy auto-correlation function. | |
| dc.description | 11 pages | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0107023 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0107023 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/2997 | |
| dc.subject | Astrophysics | |
| dc.title | The distribution of mass around galaxies | |
| dc.type | text |