We measure and analyze the sizes of 82 massive (M ≥ 1011 M &sun;) galaxies at 1. 7 ≤ z ≤ 3 utilizing deep HST NICMOS data taken in the GOODS North and South...
Extremely large telescopes as a motor of socio-economic development and implications of their construction and installation
Large-Scale observing facilities are scarce and costly. Even so, the perspective to enlarge or to increase the number of these facilities are quite real and...
As part of our deep multi-colour survey of two gravitational lensing clusters, Abell 1835 (z=0.252) and AC114 (z=0.312) used to search for very high redshift...
Extremely Red Galaxies in the Fields of Lensing Clusters
In this paper we present the photometric properties of a sample of extremely red galaxies (EROs, R-Ks≥5.6), found in the field of the lensing cluster Abell 1835...
Fabry-Perot Interferometry and Spiral Galaxy Dynamics
We present two-dimensional Fabry-Perot observations of the emission-line distribution and kinematics in nearby spiral galaxies. We have developed and...
Fabry-Perot spectroscopy: a powerful method for detecting superbubbles in galaxy discs
We present a new method for the detection and characterization of large scale expansion in galaxy discs based on Hα Fabry-Perot spectroscopy, taking advantage...
Facility class Rayleigh beacon AO system for the 4.2m William Herschel telescope
A rationale is presented for the use of a relatively low-altitude (15km) Rayleigh Laser Guide Star to provide partial adaptive optics correction across a large...