ar X iv : a st ro - p h / 06 11 49 4 v 1 1 5 N ov 2 00 6 MOND rotation curves of very low mass spiral galaxies

ar X iv : a st ro - p h / 06 11 02 9 v 1 1 N ov 2 00 6 Scalar potential model of spiral galaxy H I rotation curves and rotation curve asymmetry

A scalar potential model (SPM) was developed from considerations of galaxy clusters and of redshift. The SPM is applied to H i rotation curves (RCs) and RC asymmetry of spiral galaxies. The resulting model adds the force of a scalar potential of the host galaxy and of neighboring galaxies to the Newtonian rotation velocity equation. The RC is partitioned radially into regions. The form of the e...

ar X iv : a st ro - p h / 06 11 30 3 v 1 9 N ov 2 00 6 Flat rotational curves without dark matter

We consider the singular configurations of gravitating gas [1] which could be used as a model for disk galaxies. The simplest steady configuration , which corresponds to rotation of stars around center gives flat rotational curve, provided the density distrubution has a tail, decaying as 1/r. This result based exclusively on Newtonian gravity and does not involve dark matter.

ar X iv : a st ro - p h / 06 11 09 9 v 1 2 N ov 2 00 6 Nuclear Activity in UZC Compact Groups of Galaxies

ar X iv : a st ro - p h / 06 11 54 4 v 1 1 6 N ov 2 00 6 Discovery of a nearby twin of SN 1987 A ’ s nebula around the

ar X iv : a st ro - p h / 03 09 61 7 v 2 9 N ov 2 00 3 MOND and the “ Dearth of Dark Matter in Ordinary Elliptical Galaxies ”

The recent findings of Romanowsky et al., of an “unexpectedly” small mass discrepancy within 5 effective radii in several elliptical galaxies, are not surprising in the context of MOND. As we show here, they are, in fact, in full concordance with its predictions. One is dealing with high-surface-density galaxies with mean accelerations rather larger than the acceleration constant of MOND. These...