ar X iv : a st ro - p h / 01 01 18 5 v 1 1 1 Ja n 20 01 Starbursts In Ultraluminous Infrared Galaxies - Fueling And Properties

ar X iv : a st ro - p h / 02 01 47 6 v 1 2 9 Ja n 20 02 The Most Luminous Galaxies

Ultraluminous galaxies in the local universe (z≤0.2) emit the bulk of their energy in the mid and far-infrared. The multiwavelength approach to these objects has shown that they are advanced mergers of gas-rich spiral galaxies. Galaxy-galaxy collisions took place on all cosmological time-scales, and nearby mergers serve as local analogs to gain insight into the physical processes that lead to t...

ar X iv : a st ro - p h / 05 01 57 2 v 1 2 6 Ja n 20 05 30 DORADUS – A TEMPLATE FOR “ REAL STARBURSTS ” ? Bernhard

30 Dor is the closest massive star forming region and the best studied template of a starburst. In this conference paper we first summarize the properties of 30 Dor and its stellar core R136. We discuss the effects of insufficient spatial resolution and cluster density profiles on dynamical mass estimates of super star clusters, and show that their masses can be easily overestimated by a factor...

ar X iv : a st ro - p h / 01 01 31 5 v 1 1 8 Ja n 20 01 Signal Characteristics from Electromagnetic Cascades in Ice

We investigate the development of electromagnetic cascades in ice using a GEANT Monte Carlo simulation. We examine the Cherenkov pulse that is generated by the charge excess that develops and propagates with the shower. This study is important for the RICE experiment at the South Pole, as well as any test beam experiment which seeks to measure coherent Cherenkov radiation from an electromagneti...

ar X iv : a st ro - p h / 97 01 22 8 v 1 2 9 Ja n 19 97 Large - scale Structures revealed by Wavelet Decomposition 1

ar X iv : a st ro - p h / 06 01 66 5 v 1 2 9 Ja n 20 06 The Near - Infrared Surface Brightness Distribution of NGC 4696

We present H -band observations of the elliptical galaxy NGC4696, the brightest member of the Centaurus cluster of galaxies. We have measured its light profile, using a two-dimensional fitting algorithm, out to a radius of 180 arcsec (37 h 70 kpc). The profile is well described by a de Vaucouleurs law, with an effective radius of 35.3 ± 1.0 h 70 kpc. There is no need for the extra free paramete...