F. Kerber
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Non-metallic inclusions in copper and copper alloys Open
In this study, industrial copper and copper alloy samples were investigated with regard to non-metallic inclusions. Different types of inclusions (exogenous and endogenous) were detected and investigated with regard to appearance and chemi…
Faint southern spectrophotometric standard stars Open
Context . The advent of the Extremely Large Telescope (ELT) will increase the collecting area by more than order of magnitude compared to the individual Unit Telescopes of the Very Large Telescope (VLT). Fainter spectrophotometric standard…
View article: Faint southern spectrophotometric standard stars
Faint southern spectrophotometric standard stars Open
Context. The advent of the Extremely Large Telescope (ELT) will increase the collecting area by more than an order of magnitude compared to the individual Unit Telescopes of the Very Large Telescope (VLT). Fainter spectrophotometric standa…
View article: Predicting Maximum Permitted Process Forces for Object Grasping and Manipulation Using a Deep Learning Regression Model
Predicting Maximum Permitted Process Forces for Object Grasping and Manipulation Using a Deep Learning Regression Model Open
During the execution of handling processes in manufacturing, it is difficult to measure the process forces with state-of-the-art gripper systems since they usually lack integrated sensors. Thus, the exact state of the gripped object and th…
View article: Predicting Maximum Permitted Process Forces for Object Grasping and Manipulation Using a Deep Learning Regression Model
Predicting Maximum Permitted Process Forces for Object Grasping and Manipulation Using a Deep Learning Regression Model Open
During the execution of handling processes in manufacturing, it is difficult to measure the process forces with state-of-the-art gripper systems since they usually lack integrated sensors. Thus, the exact state of the gripped object and th…
View article: Pure-rotational and rotational-vibrational Raman spectrum of the atmosphere at an altitude of 23 km
Pure-rotational and rotational-vibrational Raman spectrum of the atmosphere at an altitude of 23 km Open
Ground-based optical astronomical observations supported by or in the vicinity of laser guide-star systems can be contaminated by Raman-scattered laser photons. Anticipating, alleviating, and correcting for the impact of this self-inflicte…
View article: Learning to Predict Grip Quality from Simulation: Establishing a Digital Twin to Generate Simulated Data for a Grip Stability Metric
Learning to Predict Grip Quality from Simulation: Establishing a Digital Twin to Generate Simulated Data for a Grip Stability Metric Open
A robust grip is key to successful manipulation and joining of work pieces involved in any industrial assembly process. Stability of a grip depends on geometric and physical properties of the object as well as the gripper itself. Current s…
Development of a Toolchain for Automated Optical 3D Metrology Tasks Open
Modern manufacturing processes are characterized by growing product diversities and complexities alike. As a result, the demand for fast and flexible process automation is ever increasing. However, higher individuality and smaller batch si…
View article: The ESO’s Extremely Large Telescope Working Groups
The ESO’s Extremely Large Telescope Working Groups Open
Since 2005 ESO has been working with its community and industry to develop an extremely large optical/infrared telescope. ESO’s Extremely Large Telescope, or ELT for short, is a revolutionary ground-based telescope that will have a 39-metr…
View article: Instrumentation for ESO’s Extremely Large Telescope
Instrumentation for ESO’s Extremely Large Telescope Open
Design and construction of the instruments for ESO’s Extremely Large Telescope (ELT) began in 2015. We present here a brief overview of the status of the ELT Instrumentation Plan. Dedicated articles on each instrument are presented elsewhe…
View article: ESPRESSO at VLT. On-sky performance and first results
ESPRESSO at VLT. On-sky performance and first results Open
Context. ESPRESSO is the new high-resolution spectrograph of ESO’s Very Large Telescope (VLT). It was designed for ultra-high radial-velocity (RV) precision and extreme spectral fidelity with the aim of performing exoplanet research and fu…
Turbulence nowcast for the Cerro Paranal and Cerro Armazones observatory sites Open
Optical turbulence affects significantly the quality of ground-based astronomical observations. An accurate and reliable forecast of optical turbulence can help to optimize the scheduling of the science observations and to improve both the…
Turbulence nowcast for the Cerro Paranal and Cerro Armazones observatory sites Open
Optical turbulence affects significantly the quality of ground-based astronomical observations. An accurate and reliable forecast of optical turbulence can help to optimise the scheduling of the science observations and to improve both the…
Turbulence nowcast for the Cerro Paranal and Cerro Armazones observatory\n sites Open
Optical turbulence affects significantly the quality of ground-based\nastronomical observations. An accurate and reliable forecast of optical\nturbulence can help to optimise the scheduling of the science observations and\nto improve both …
View article: ESPRESSO at VLT
ESPRESSO at VLT Open
Context. ESPRESSO is the new high-resolution spectrograph of ESO’s Very Large Telescope (VLT). It was designed for ultra-high radial-velocity (RV) precision and extreme spectral fidelity with the aim of performing exoplanet research and fu…
Successful application of PSF-R techniques to the case of the globular cluster NGC 6121 (M 4) Open
Context. Precise photometric and astrometric measurements on astronomical images require an accurate knowledge of the point spread function (PSF). When the PSF cannot be modelled directly from the image, PSF-reconstruction techniques becom…
View article: Atomic data for astrophysics: Needs and challenges
Atomic data for astrophysics: Needs and challenges Open
peer reviewed
View article: Rotational and Rotational-Vibrational Raman Spectroscopy of Air to Characterize Astronomical Spectrographs
Rotational and Rotational-Vibrational Raman Spectroscopy of Air to Characterize Astronomical Spectrographs Open
Raman scattering enables unforeseen uses for the laser guide-star system of the Very Large Telescope. Here, we present the observation of one up-link sodium laser beam acquired with the ESPRESSO spectrograph at a resolution λ/Δλ∼140 000. I…
View article: Forecasting water vapour above the sites of ESO’s Very Large Telescope (VLT) and the Large Binocular Telescope (LBT)
Forecasting water vapour above the sites of ESO’s Very Large Telescope (VLT) and the Large Binocular Telescope (LBT) Open
Water vapour in the atmosphere is the main source of the atmospheric opacity\nin the infrared and sub-millimetric regimes and its value plays a critical role\nin observations done with instruments working at these wavelengths on\nground-ba…
View article: The MICADO first light imager for the ELT: overview, operation, simulation
The MICADO first light imager for the ELT: overview, operation, simulation Open
MICADO will enable the ELT to perform diffraction limited near-infrared\nobservations at first light. The instrument's capabilities focus on imaging\n(including astrometric and high contrast) as well as single object\nspectroscopy. This co…
View article: The MICADO first light imager for the ELT: overview, operation, simulation
The MICADO first light imager for the ELT: overview, operation, simulation Open
MICADO will enable the ELT to perform diffraction limited near-infrared observations at first light. The instrument's capabilities focus on imaging (including astrometric and high contrast) as well as single object spectroscopy. This contr…
Full system test and early preliminary acceptance Europe results for CRIRES+ Open
CRIRES+ is the new high-resolution NIR echelle spectrograph intended to be operated at the platform B of VLT Unit telescope UT3. It will cover from Y to M bands (0.95-5.3um) with a spectral resolution of R = 50000 or R=100000. The main sci…
A unique infrared spectropolarimetric unit for CRIRES+ Open
High-resolution infrared spectropolarimetry has many science applications in astrophysics. One of them is measuring weak magnetic fields using the Zeeman effect. Infrared domain is particularly advantageous as Zeeman splitting of spectral …
Quantitative Characterisation Of Sky Conditions On Paranal With The Microwave Radiometer Lhatpro – Five Years And Learning Open
"A Low Humidity and Temperature Profiling (LHATPRO) microwave radiometer, optimized for measuring small amounts of atmospheric precipitable water vapour (PWV), has now been in use for more than five years to monitor sky conditions over ESO…
VISIR upgrade overview: all's well that ends well Open
We present an overview of the VISIR instrument after its upgrade and return to science operations. VISIR is the midinfrared imager and spectrograph at ESO's VLT. The project team is comprised of ESO staff and members of the original VISIR …