Search
Search Results
-
Evidence for an Accelerating Universe from Type Ia Supernovae
The expansion history of the universe is revealed by measurements of cosmic distances. Since the various energy components in a Friedmann universe... -
Constraining Cosmological Parameters with Observations of Galaxy Clusters
Galaxy clusters are ideal probes of the large-scale structure of the Universe and for the tests of cosmological models. Based on the REFLEX redshift... -
The NASA - MIDEX Swift Mission
The Gamma Ray Bursts as powerful extragalactic sources are one of the major discovery which occurred in the last decade thanks to the BATSE satellite... -
Fundamental Physics with Space Experiments
I review a category of experiments in fundamental physics that need space as a laboratory. All these experiments have in common the need of a very... -
Connections Between Quantum Theory and Cosmology: An Unconventional View
Usually cosmology is seen as a special part of general relativity. Quantum theory is normally understood as responsible for the small and the very... -
A New Unifying Field Spacetime Structure
Analysis of the data and equations for the solar system and the hydrogen atom identified a unifying spacetime structure intrinsic to the fields. The... -
High Energy Photon Flux Prediction from Neutralino Annihilation in M 31
Considering a NFW halo of M 31 made of neutralinos, predictions for the... -
Cosmic Shear from STIS Pure Parallels - II. Analysis
The tidal gravitational field due to the inhomogeneous distribution of matter in the Universe causes the distortion of light bundles from distant... -
APPLES: A Parallel Slitless Imaging Survey for ACS
We present APPLES, the ACS Pure Parallel Ly $\alpha$ Emission... -
Big Bang Nucleosynthesis of Lithium-7 and the Baryon Density of the Universe
Thanks to recent nuclear physic compilations, we update Standard Big Bang Nucleosynthesis (SBBN) calculations. By a Monte-Carlo technique, we... -
Problems of Cosmological Darwinian Selection and the Origin of Habitable Universes
For the cosmologist and physicist Lee Smolin, our universe is only one in a much larger cosmos (the Multiverse), a member of a growing community of... -
Hot Massive Planets Around Nearby Young Stars – A Search with NACO at the VLT
The detection of massive planets (3-10 M J ) around nearby (D ≤ 50 pc) young late-type stars (10-200 Myr) is possible... -
Selected Examples of Solar and Extra-Solar Planetary Science with AO
High spatial resolution planetary science has seen a large boost from AO observations complementing space missions. Adaptive optics is particularly... -
Quality Control and Data Flow Operations of NAOS-CONICA
The verification of data and the monitoring of instrument performance – known collectively as quality control (QC) – are an integral part of the... -
NACO and PUEO-GriF Investigating Small Scale Structures and Velocity Fields in OMC1
Infrared observations of the OMC1 star forming region obtained at the CFHT and at the ESO VLT, both in imaging mode with adaptive optics, are... -
Lyot Coronagraphy at the Palomar and Phase-Mask Coronagraphy at the VLT
In this paper, we report on observations of faint companions and circumstellar disks at the Palomar 200-inch telescope. As a result, we present... -
NACO-SDI: A Novel Simultaneous Differential Imager for the Direct Imaging of Giant Extra-Solar Planets
Young (100 Myr old) extra-solar planets are 100000 times more self-luminous than old (5 Gyr) extra-solar planets, whereas their primary stars are... -
AO-Assisted Observations of Ultra-Compact H II Regions
High-spatial resolution observations in the near-infrared (NIR) with Adaptive Optics (AO) represent a powerful tool to investigate massive star... -
Near-Infrared High Resolution Spectroscopy of High-z QSO Absorption Systems with the Subaru Adaptive Optics System
We are conducting a near-infrared (1.0–1.35 μm) high resolution spectroscopic survey of high-z QSOs to study the QSO absorption systems at high... -
Introduction to Mining the Sky: Mining 101
For more than one hundred years, astronomers have had access to large data sets. A typical photographic plate contains 100 Megabytes of data. But...