On the quiescence of the Hubble flow in the vicinity of the Local Group
| dc.creator | Ekholm, T. | |
| dc.creator | Baryshev, Yu. | |
| dc.creator | Teerikorpi, P. | |
| dc.creator | Hanski, M. O. | |
| dc.creator | Paturel, G. | |
| dc.date | 2001-03-06 | |
| dc.date.accessioned | 2026-07-07T01:57:53Z | |
| dc.date.available | 2026-07-07T01:57:53Z | |
| dc.description | Cepheid distances of local galaxies (<7 Mpc) are used to study the very nearby velocity field, as pioneered by Sandage (Sandage 1986) who also pointed out its remarkable properties: linearity and quietness. The new data show that the velocity dispersion in the distance range as seen from the barycentre of the Local Group 1-8 Mpc is as low as 38 km/sec. The local rate of expansion coincides with the global Hubble constant. Down to 1.5 Mpc we cannot detect a deviation from the linear Hubble flow. This puts an upper limit for the mass of the Local Group, for a wide class of Friedman models, including those with the cosmological constant. | |
| dc.description | 4 pages, 3 figures. Accepted to Astron. Astrophys. Letters | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0103090 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0103090 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/2562 | |
| dc.subject | Astrophysics | |
| dc.title | On the quiescence of the Hubble flow in the vicinity of the Local Group | |
| dc.type | text |