ar X iv : a st ro - p h / 99 02 30 1 v 1 2 0 Fe b 19 99 On the Stability of the CMB Autocorrelation Function on Cosmological Parameters

ar X iv : a st ro - p h / 99 02 23 4 v 2 1 7 Fe b 19 99 OB ASSOCIATIONS

ar X iv : a st ro - p h / 99 02 31 4 v 1 2 2 Fe b 19 99 Polarized Foreground from Thermal Dust Emission

In this review, we intend to present the current knowledge of the polarized emission from thermal dust in our Galaxy. We show different methods to estimate the spatial distribution statistics of this emission in the lack of any data from the diffuse ISM, and compare it to the expected CMB polarized signal. We finally show how this contaminant could be efficiently removed from CMB maps using mul...

ar X iv : a st ro - p h / 99 01 30 3 v 1 2 1 Ja n 19 99 Combining Supernovae and LSS Information with the CMB

Observations of the Cosmic Microwave Background (CMB), large scale structure (LSS) and standard candles such as Type 1a Supernovae (SN) each place different constraints on the values of cosmological parameters. We assume an inflationary Cold Dark Matter model with a cosmological constant, in which the initial density perturbations in the universe are adiabatic. We discuss the parameter degenera...

ar X iv : a st ro - p h / 99 02 15 2 v 1 1 0 Fe b 19 99 POWER SPECTRUM FROM WEAK - SHEAR DATA

We demonstrate that the aperture mass as a measure for cosmic shear closely approximates (to better than ≈ 5%) the scaled and shifted power spectrum of the projected mass density. This cosmological weak-lensing information can thus be used to directly infer the projected matter power spectrum with high accuracy. As an application, we show that aperture-mass observations can be used to constrain...

ar X iv : a st ro - p h / 99 02 20 1 v 1 1 4 Fe b 19 99 CMB Synchrotron Foreground

Synchrotron emission is an important process in Galactic dynamics and a potentially confusing foreground for cosmic microwave background (CMB) radiation observations. Though the mechanism of synchrotron emission is well understood, the details for the Galaxy and many external sources is not well characterized. Quality maps at multiple frequencies are lacking but needed for a full understanding ...