/ 01 06 48 3 v 2 2 7 Ju n 20 01 Dust penetrated morphology in the high redshift Universe

ar X iv : a st ro - p h / 01 06 48 3 v 1 2 6 Ju n 20 01 Dust penetrated morphology in the high redshift Universe

Images from the Hubble Deep Field (HDF) North and South show a large percentage of dusty, high redshift galaxies whose appearance falls outside traditional classification systems. The nature of these objects is not yet fully understood. Since the HDF preferentially samples restframe UV light, HDF morphologies are not dust or 'mask' penetrated. The appearance of high redshift galaxies at near-in...

ar X iv : h ep - p h / 01 06 06 4 v 2 1 3 Ju n 20 01 Implications of the Measurements of U e 3 to Theory ⋆

The predictions of Ue3 are discussed. Typical models which lead to the large, the seizable and the tiny Ue3 are also studied.

ep - p h / 01 06 33 3 v 1 2 8 Ju n 20 01 Rare charm meson decays D → P l + l − and c → ul + l − in SM and MSSM

ar X iv : a st ro - p h / 06 06 66 3 v 1 2 7 Ju n 20 06 Astrophysics in 2005

We bring you, as usual, the sun and moon and stars, plus some galaxies and a new section on astrobiology. Some highlights are short (the newly identified class of gamma-ray bursts, and the Deep Impact on Comet 9P/Tempel 1), some long (the age of the universe, which will be found to have the Earth at its center), and a few metonymic, for instance the term “down-sizing” to describe the evolution ...

ar X iv : a st ro - p h / 07 01 77 7 v 1 2 6 Ja n 20 07 Observations of GRBs at High Redshift By Nial

The extreme luminosity of gamma-ray bursts and their afterglows means they are detectable, in principle, to very high redshifts. Although the redshift distribution of GRBs is difficult to determine, due to incompleteness of present samples, we argue that for Swift-detected bursts the median redshift is between 2.5 and 3, with a few percent likely at z > 6. Thus, GRBs are potentially powerful pr...