Search
Search Results
-
Extrasolar Planets Transits: Detection and Follow-Up
The detection of transits has a rich potential of information about extrasolar planets. This contribution gives an overview and new perspectives on...
-
Solar Nebulae and Replenished Dust Disks with Planets
Having studied the primordial, protoplanetary gas disks, and older, dusty “remnant” disks in infrared-emitting (Vega-type) circumstellar systems, we...
-
The Darwin Space Interferometer
Darwin is a mid-IR(5-30 micron) interferometry observatory with baselines greater than 50 metres. As a long-duration general purpose observatory, ESA...
-
2. Definition of Life
The definition of life is a long-standing debate with no general scientific consensus to be expected any time soon. The underlying problem is that...
-
4. Energy Sources and Life
An external energy source is a necessary condition for life, because living systems require a flow of energy to organize materials and maintain a low...
-
Simulations of Solar AO Systems
In this paper, first we compare the two kinds of algorithms that are being used in solar AO systems to sense a distorted wave-front through...
-
Search for Sub-Stellar Companions Using AO – First Results Obtained with NAOS-CONICA
We present first results of our NAOS-CONICA search for close substellar companions around young nearby stars. This program was started only a few...
-
Near-Infrared AO Spectroscopy of Edge-On Protoplanetary Disks with Subaru IRCS
We carried out near infrared (1.4–4.2 μm) AO imaging and spectroscopy of two edge-on protoplanetary disks; HK TauB and HV TauC located in Taurus...
-
A Search for Close Companions in Sco OB2
Using adaptive optics we study the binary population in the nearby OB association Scorpius OB2. We present the first results of our near-infrared...
-
Adaptive Optics Observations of Stars in Globular Clusters and Nearby Galaxies
Observations of nearby stellar systems with the Canada-France-Hawaii Telescope PUEO Adaptive Optics system, the University of Hawaii HOKUPA’A system...
-
NACO Observations of NGC 1068
We present various recent results obtained with adaptive optics systems on the very central region of NGC 1068: Grif long-slit spectroscopy in K band...
-
A Near-Infrared Adaptive Optics Imaging Survey of Nearby QSOs
We present the results of a near-IR Adaptive Optics imaging survey of 32 nearby (z<0.325) QSOs with curvature AO systems on the Gemini North and...
-
Subaru Deep Field with Adaptive Optics
A deep K′-band (2.12μ m) image of 1′ × 1′ blank sky field (Subaru Deep Field; SDF) taken with Subaru Adaptive Optics System (AO) is presented. The...
-
Adaptive Optics Science with the MMT Adaptive Secondary: Mid-IR AO Imaging of the Post-AGB Star AC Her
The world’s first adaptive secondary has been commissioned at the 6.5m MMT. Early science results suggests that it is unique and highly productive....
-
One Year of NACO Operations
The first ESO adaptive optics system instrument, NACO, installed at the VLT has been offered to the astronomical community and used on a regular...
-
The Construction of X-ray Cluster Surveys and Their Spatial Analysis
The construction of X-ray cluster surveys is described. As an example the selection processes applied to the REFLEX survey and first results of an...
-
The 2dF QSO Redshift Survey - 10K@2K!
With $\approx$ 10000 QSO redshifts, the 2dF QSO Redshift Survey...
-
Clustering of X-Ray Selected AGN
The analysis of the spatial clustering of the brightest X-ray selected AGN from the ROSAT All Sky Survey is presented. A weak correlation signal at a...
-
Strong Constraints on Cosmology from Galaxy Clusters
In this work we show how galaxy clusters can be used to discriminate among different cosmological models. We have used available X-ray & optical...
-
Large-Scale Distribution and Spectral Properties of Galaxies in the Shapley Concentration
We present the results of a redshift survey of both cluster and intercluster galaxies in the central part of the Shapley Concentration, the richest...