X iv : a st ro - p h / 02 03 42 9 v 2 2 7 A ug 2 00 2 MOND mass - to - light ratios for galaxy groups

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...

ar X iv : a st ro - p h / 02 08 16 9 v 1 7 A ug 2 00 2 Structural Parameters and Dynamical Masses for Globular Clusters in M 33 1

Using high-dispersion spectra from the HIRES echelle spectrograph on the Keck I telescope, we measure velocity dispersions for 4 globular clusters in M33. Combining the velocity dispersions with integrated photometry and structural parameters derived from King–Michie model fits to WFPC2 images, we obtain mass-to-light ratios for the clusters. The mean value is M/LV = 1.53 ± 0.18, very similar t...

ar X iv : a st ro - p h / 02 04 03 6 v 1 2 A pr 2 00 2 Investigating the Flame Microstructure in Type

ar X iv : a st ro - p h / 02 10 62 2 v 1 2 9 O ct 2 00 2 Characterising Extrasolar Planets in Reflected Light and Thermal Emission

The physical bases of the detection and characterisation of extrasolar planets in the reflected light and thermal emission regimes are reviewed. They both have their advantages and disadvantages, including artefacts, in the determination of planet physical parameters (mass, size, albedo, surface and atmospheric conditions etc. A special attention is paid for Earth-like planets and new perspecti...

ar X iv : a st ro - p h / 03 08 07 9 v 1 5 A ug 2 00 3 THE 2 MS CHANDRA DEEP FIELD - NORTH

The 2 Ms Chandra Deep Field-North survey provides the deepest view of the Universe in the 0.5–8.0 keV X-ray band. In this brief review we investigate the diversity of X-ray selected sources and focus on the constraints placed on AGNs (including binary AGNs) in high-redshift submm galaxies.