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CMB Data Analysis: the Map-Making Problem
In this poster, we present some new algorithms concerning the mapmaking issue for CMB experiments as well as some steps performed in the far-side... -
Exploration of Large Digital Sky Surveys
We review some of the scientific opportunities and technical challenges posed by the exploration of the large digital sky surveys, in the context of... -
Massive Variability Searches: the Past, Present and Future
Many decades ago a search for variable stars was one of the main areas of astrophysical research. Such searches, conducted with CCD detectors rather... -
NIR Visibility Function of Emission Lines with the Galileo OH Subtracted Spectrograph
We study here the visibility function of emission lines expected for GOHSS. This spectrograph will accomplish, on spectra observed at resolution... -
Fast Hough Transform for Robust Detection of Satellite Tracks
Satellite tracks are frequently observed on images obtained with wide-field imagers and relative long exposure times. In order to prevent false... -
Measuring Bulk Flows with the Kinematic Sunyaev-Zeldovich Effect in CMB Maps
We propose a new method to measure the possible large-scale bulk flows in the Universe from cosmic microwave background temperature anisotropy maps.... -
Blind Source Separation of Multispectral Astronomical Images
Multispectral images lead to classify pixels, but often with the drawback that each pixel value is the result of a combination of different sources.... -
OPTICON and the Virtual Observatory
The challenges of multi-wavelength astrophysics require new outlooks from those appropriate to traditional astronomy. The next generation of research... -
Mining the CDS Collection: A Learning Experience
The experiences gained as a result of the CDS/ESO Datamining project are described in this paper as well as a brief outline of the tools developed... -
DEEP: Pre-DEIMOS Surveys to $I \sim 24$ of Galaxy Evolution and Kinematics
DEEP is a two-phase program designed to undertake spectroscopic surveys of faint field galaxies with the Keck Telescopes. The scientific goals... -
The SED Fitting Method as a Tool for Photometric Redshift Estimate
Photometric redshift techniques have been extensively applied to ultra-deep galaxy surveys like the Hubble Deep Field North (HDFN; Williams et al.,... -
Modeling Faint Morphological Number Counts
We revisit our recent results concerning comparisons of magnitude and photometric redshift data from the Hubble Deep Fields to statistical... -
Search for Nearby Faint High Proper Motion Stars
A new high proper motion survey of the southern sky has been started using a re-reduction of APM measurements of UKST plates [15]. The main aim of... -
Optical and Near-IR Identifications of (Sub)Millimeter Background Sources
We summarise preliminary results of our search for optical and near-infrared counterparts to millimeter continuum background sources discovered in... -
Galaxy Evolution in the Hubble Deep Field North and South
We derive the redshifts of the galaxies in the HDFN and HDFS, using our own photometric redshift technique (a Basian method using empirical template... -
A Multivariate Analysis of Galaxies in the Hubble Deep Field North
We measure and statistically compare an array of parameters for over 250 galaxies in the Hubble Deep Field North, using the WFPC2 and NICMOS images... -
Distant Galaxy Clusters: New Detections and Follow-Up Observations in the Optical.
A new cluster detection algorithm was developed and applied to the ESO Imaging Survey dataset (EIS), producing a new catalogue of cluster candidates... -
Clustering of Very Red Galaxies in the Las Campanas IR Survey
We report results from the first 1000 square arc-minutes of the Las Campanas IR survey. We have imaged 1 square degree of high latitude sky in six... -
High-Energy Large-Area Surveys: From BeppaSAX to Chandra and XMM
Optical identification of hard X-ray selected BeppoSAX and Chandra sources indicates that a large fraction of the sources are “intermediate” AGN,... -
Quasars in the Sloan Digital Sky Survey
The Sloan Digital Sky Survey (SDSS) is an imaging and spectroscopic survey of 10,000 deg2 of the high Galactic latitude sky. The SDSS quasar sample...