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Chapter and Conference Paper
MAD@VLT: Deep into the Madding Crowd of Omega Centauri
We present deep and accurate Near-Infrared (NIR) photometry of the Galactic Globular Cluster (GC) ω Cen. Data were collected using the Multi-Conjugate Adaptive Optics Demonstrator (MAD) on VLT (ESO). The unpreced...
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Chapter and Conference Paper
X-Shooter: A Medium-resolution, Wide-Band Spectrograph for the VLT
X-shooter is the first second-generation instrument for the ESO Very Large Telescope, and will be installed in 2008. It is intended to become the most powerful optical & near-infrared medium-resolution spectrogra...
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Chapter and Conference Paper
High Resolution Wavelength Calibration: Advancements with the Laser Frequency Comb Development
Wavelength calibration in high resolution spectroscopy is a key issue for the delivery of high quality science data. ESO and MPQ have agreed to develop a wavelength calibration unit demonstrator based on a Las...
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Chapter and Conference Paper
ESPRESSO: A High Resolution Spectrograph for the Combined Coudé Focus of the VLT
In the frame of the call for proposal for the E-ELT instrumentation studies, the CODEX team carried out the feasibility study for a spectrograph for extremely stable Doppler measurements. The CODEX project and...
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Chapter and Conference Paper
From ESPRESSO to CODEX
CODEX and ESPRESSO are concepts for ultra-stable, high-resolution spectrographs at the E-ELT and VLT, respectively. Both instruments are well motivated by distinct sets of science drivers. However, ESPRESSO wi...
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Chapter and Conference Paper
Building-Up a Database of Spectro-Photometric Standard Stars from the Ultraviolet to the Near-Infrared
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Chapter and Conference Paper
Comprehensive Abundance Measurements in Damped Lyα Systems
The high quality, high-resolution UVES/VLT and HIRES/Keck spectra of 10 quasars allowed us to analyze in detail 11 intervening damped Lyα systems at z abs = 1.7 – 2.5. We detect...
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Chapter and Conference Paper
Codex
Many talks in this conference have shown the power of high resolution spectroscopy, coupled to high precision. A new spectrograph, fed by an Extremely Large Telescope, will have such a huge collecting power th...
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Chapter and Conference Paper
Laboratory Measurements of Calibration Sources for X-Shooter
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Chapter and Conference Paper
Laser Comb: A Novel Calibration System for High Resolution Spectrographs
With HARPS, the ESO community has established a new standard in the wavelength accuracy and stability of Doppler shift measurements of astrophysical sources. To meet new scientific challenges, like the detecti...
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Chapter and Conference Paper
Small-scale Structure of High-redshift OVI Absorption Systems
We present results of the first survey of high-redshift (< z >∼ 2.3) OVI absorption systems along parallel lines-of-sight toward two lensed QSOs.
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Chapter and Conference Paper
Search for Galaxies at z > 4 from a Deep Multicolor Survey
We present deep BVrI multicolor photometry in the field of the quasar BR1202-07 (z em = 4.694) aimed at selecting field galaxies at z > 4. We compare the observ...
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Chapter and Conference Paper
Simulations of High Redshift Galaxies Colors at the NTT-SUSI2 and VLT-FORS
We show here that a deep multi-band photometry in the visible range may be used to select candidate galaxies in the redshift range z = 3 – 4.5, which may be excellent targets for the first VLT spectroscopic obser...
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Chapter and Conference Paper
The ESO UV-Visual Echelle Spectrograph (UVES)
UVES is the cross-dispersed, echelle spectrograph built at ESO for installation at the VLT in 3Q 1999. It has two separate blue (λλ 300–500nm) and red (λλ 420–11000nm) optical paths and two CCD detectors to ma...
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Chapter and Conference Paper
As Metal Poor as It Could Be: the Damped System at z=3.390 Towards QSO 0000-2619
We present an abundance analysis of the damped Lya system seen in the spectrum of the QSO 0000-2619 at z abs=3.390. From the analysis of high resolution spectra (FWHM ⋍ 11 and 14 km s−1) w...
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Chapter and Conference Paper
Clustering of the Ly α Clouds in the Line of Sight to the z=3.66 QSO 0055-269
The spectrum of the Q0055-269 (z = 3.66) has been observed at the resolution of 14 km s−1 in the wavelength interval 4750–6300 Å. The statistical distribution of the Doppler parameter for the Ly ...
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Chapter and Conference Paper
Fine-Structure Doublets in QSO Spectra and Variability of the Fine-Structure Constant α
In Kaluza-Klein theories with extra space dimensions, dependence of the fine-structure constant, α ≡ e 2/ħc ≃ 1/137, on the volume of the compact space allows one to use fine-structure dou...
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Chapter and Conference Paper
New Results on the Gunn-Peterson Effect at High Redshift
Attempts to measure the optical depth due to a diffuse intergalactic medium (IGM) in the spectra of high redshift quasars (GP test) within the ESO key program on the intergalactic medium are reviewed. It is sh...
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Chapter and Conference Paper
Which is the Mass of SS 433?
Masses of the components of the binary system SS 433 crucially depend on the value of the Doppler amplitude of the He II line at 4686 Å which is believed to reflect the orbital motion of the compact object. We...
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Chapter
Interstellar Matter
The previous report started with optimistic remarks about the increasing importance of the study of interstellar matter in astronomy. This trend has largely been confirmed in the 1985–87 period and it is clear...
