EELT-HIRES the high-resolution spectrograph for the E-ELT
The first generation of E-ELT instruments will include an optical-infrared High Resolution Spectrograph, conventionally indicated as EELT-HIRES, which will be capable of providing unique breakthroughs...
View ArticleNight sky brightness at San Pedro Martir Observatory
We present optical UBVRI zenith night sky brightness measurements collected on eighteen nights during 2013--2016 and SQM measurements obtained daily over twenty months during 2014--2016 at the...
View ArticleLaboratory Measurements of the K-shell transition energies in L-shell ions of...
We have measured the energies of the strongest 1s-2ell (ell=s,p) transitions in He- through Ne-like silicon and sulfur ions to an accuracy of better than 1eV using Lawrence Livermore National...
View ArticleNew Extreme Trans-Neptunian Objects: Towards a Super-Earth in the Outer Solar...
We are conducting a survey for extreme solar system objects to understand Sedna and 2012 VP113 and determine if an unknown massive planet exists in the outer solar system. Two new objects, 2014 SR349...
View ArticleResults of an all-sky high-frequency Einstein@Home search for continuous...
We present results of a high-frequency all-sky search for continuous gravitational waves from isolated compact objects in LIGO's 5th Science Run S5 data, using the computing power of the Einstein@Home...
View Article$K$-corrections: an Examination of their Contribution to the Uncertainty of...
In this paper we provide formulae that can be used to determine the uncertainty contributed to a measurement by a $K$-correction and, thus, valuable information about which flux measurement will...
View ArticleReactive magnetron sputter deposition of superconducting niobium titanium...
The superconducting critical temperature (Tc>15 K) of niobium titanium nitride (NbTiN) thin films allows for low-loss circuits up to 1.1 THz, enabling on-chip spectroscopy and multi-pixel imaging...
View ArticleAnalysis of the distribution of precipitable water vapor in the Chajnantor area
In this work, we present results from a long-term precipitable water vapor (PWV) study in the Chajnantor area, in northern Chile. Data from several instruments located at relevant sites for...
View ArticleGalaxy And Mass Assembly (GAMA): detection of low-surface-brightness galaxies...
We report on a search for new low-surface-brightness galaxies (LSBGs) using Sloan Digital Sky Survey (SDSS) data within the GAMA equatorial fields. The search method consisted of masking objects...
View ArticleIntensity Interferometry with Aqueye+ and Iqueye in Asiago
Since a number of years our group is engaged in the design, construction and operation of instruments with very high time resolution in the optical band for applications to Quantum Astronomy and more...
View ArticleAstronomical Data Fusion Tool Based on PostgreSQL
With the application of advanced astronomical technologies, equipments and methods all over the world, astronomy covers from radio, infrared, visible light, ultraviolet, X-ray and gamma ray band, and...
View ArticleThe new world atlas of artificial night sky brightness
Artificial lights raise night sky luminance, creating the most visible effect of light pollution-artificial skyglow. Despite the increasing interest among scientists in fields such as ecology,...
View ArticlePreliminary design of the INPE’s Solar Vector Magnetograph
We describe the preliminary design of a magnetograph and visible-light imager instrument to study the solar dynamo processes through observations of the solar surface magnetic field distribution. The...
View ArticleBasic Celestial Mechanics
These are lecture notes of the lecture on elementary celestial mechanics read at Technische Universitaet Dresden, Dresden, Germany from 2000 till 2011.
View ArticleResults of an all-sky high-frequency Einstein@Home search for continuous...
We present results of a high-frequency all-sky search for continuous gravitational waves from isolated compact objects in LIGO's 5th Science Run S5 data, using the computing power of the Einstein@Home...
View ArticleProbabilistic multi-catalogue positional cross-match
We lay the foundations of a statistical framework for multi-catalogue cross-correlation and cross-identification based on explicit simplified catalogue models. A proper identification process should...
View ArticleThe ARCHES project
ARCHES (Astronomical Resource Cross-matching for High Energy Studies) is a FP7-Space funded project whose aim is to provide the international astronomical community with well-characterised...
View ArticleSpace Development and Space Science Together, an Historic Opportunity
The national space programs have an historic opportunity to help solve the global-scale economic and environmental problems of Earth while becoming more effective at science through the use of space...
View ArticleAnalysis of the distribution of precipitable water vapor in the Chajnantor...
In this work, we present results from a long-term precipitable water vapor (PWV) study in the Chajnantor area, in northern Chile. Data from several instruments located at relevant sites for...
View ArticleNICIL: A stand alone library to self-consistently calculate non-ideal...
In this paper, we introduce Nicil: Non-Ideal magnetohydrodynamics Coefficients and Ionisation Library. Nicil is a stand-alone Fortran90 module that calculates the ionisation values and the coefficients...
View ArticleQualification Tests of the R11410-21 Photomultiplier Tubes for the XENON1T...
The Hamamatsu R11410-21 photomultiplier tube is the photodetector of choice for the XENON1T dual-phase time projection chamber. The device has been optimized for a very low intrinsic radioactivity, a...
View ArticleSuperconducting NbTiN Thin Films with Highly Uniform Properties over a 100 mm...
Uniformity in thickness and electronic properties of superconducting niobium titanium nitride (NbTiN) thin films is a critical issue for upscaling superconducting electronics, such as microwave kinetic...
View ArticleRadial Velocity Data Analysis with Compressed Sensing Techniques
We present a novel approach for analysing radial velocity data that combines two features: all the planets are searched at once and the algorithm is fast. This is achieved by utilizing compressed...
View ArticleResults and Perspectives of the Auger Engineering Radio Array
The Auger Engineering Radio Array (AERA) is an extension of the Pierre Auger Cosmic-Ray Observatory. It is used to detect radio emission from extensive air showers with energies beyond $10^{17}~$eV in...
View ArticleIn-situ absolute calibration of electric-field amplitude measurements with...
With the Auger Engineering Radio Array (AERA) located at the Pierre Auger Observatory, radio emission of extensive air showers is observed. To exploit the physics potential of AERA, electric-field...
View ArticleExtreme Scale-out SuperMUC Phase 2 – lessons learned [Cross-Listing]
In spring 2015, the Leibniz Supercomputing Centre (Leibniz-Rechenzentrum, LRZ), installed their new Peta-Scale System SuperMUC Phase2. Selected users were invited for a 28 day extreme scale-out block...
View ArticleSimCADO – an instrument data simulator package for MICADO at the E-ELT
MICADO will be the first-light wide-field imager for the European Extremely Large Telescope (E-ELT) and will provide difiraction limited imaging (7mas at 1.2mm) over a ~53 arcsecond field of view. In...
View ArticleThe E-ELT Multi-Object Spectrograph: latest news from MOSAIC
There are 8000 galaxies, including 1600 at z larger than 1.6, which could be simultaneously observed in an E-ELT field of view of 40 sq. arcmin. A considerable fraction of astrophysical discoveries...
View ArticlePhotometric Supernova Classification With Machine Learning [Replacement]
Automated photometric supernova classification has become an active area of research in recent years in light of current and upcoming imaging surveys such as the Dark Energy Survey (DES) and the Large...
View ArticleA Fourier dimensionality reduction model for big data interferometric imaging
Data dimensionality reduction in radio interferometry can provide critical savings of computational resources for image reconstruction, which is of paramount importance for the scalability of imaging...
View ArticleDetailed Design of a Deployable Tertiary Mirror for the Keck I Telescope
Motivated by the ever increasing pursuit of science with the transient sky (dubbed Time Domain Astronomy or TDA), we are fabricating and will commission a new deployable tertiary mirror for the Keck I...
View ArticlePolarimetry at millimeter wavelengths with the NIKA camera: calibration and...
Magnetic fields, which play a major role in a large number of astrophysical processes from galactic to cosmological scales, can be traced via observations of dust polarization as demonstrated by the...
View ArticleCompression of interferometric radio-astronomical data
The volume of radio-astronomical data is a considerable burden in the processing and storing of radio observations with high time and frequency resolutions and large bandwidths. Lossy compression of...
View ArticleConvolution kernels for multi-wavelength imaging
Astrophysical images issued from different instruments and/or spectral bands often require to be processed together, either for fitting or comparison purposes. However each image is affected by an...
View ArticleA kilo-pixel imaging system for future space based far-infrared observatories...
Future astrophysics and cosmic microwave background space missions operating in the far-infrared to millimetre part of the spectrum will require very large arrays of ultra-sensitive detectors in...
View ArticleComparative performance of selected variability detection techniques in...
Photometric measurements are prone to systematic errors presenting a challenge to low-amplitude variability detection. In search for a general-purpose variability detection technique able to recover a...
View ArticleA detector interferometric calibration experiment for high precision astrometry
Context: Exoplanet science has made staggering progress in the last two decades, due to the relentless exploration of new detection methods and refinement of existing ones. Yet astrometry offers a...
View ArticleMonte-Carlo modelling of multi-object adaptive optics performance on the...
The performance of a wide-field adaptive optics system depends on input design parameters. Here we investigate the performance of a multi-object adaptive optics system design for the European Extremely...
View ArticleParallel Calibration for Sensor Array Radio Interferometers
In order to meet the theoretically achievable imaging performance, calibration of modern radio interferometers is a mandatory challenge, especially at low frequencies. In this perspective, we propose a...
View ArticleAgeing of a space-based CCD: photometric performance development of the low...
In this thesis we have analysed the time evolution of the photometric precision achieved by the space-based exoplanet-hunting mission CoRoT during its flight phase (2007-2012). This study of the noise...
View ArticleCERES: A Set of Automated Reduction Routines for Echelle Spectra
We present the Collection of Extraction Routines for Echelle Spectra (CERES). These routines were developed for the construction of automated pipelines for the reduction, extraction and analysis of...
View ArticleBayes Factors via Savage-Dickey Supermodels
We outline a new method to compute the Bayes Factor for model selection which bypasses the Bayesian Evidence. Our method combines multiple models into a single, nested, Supermodel using one or more...
View ArticleTaming outliers in pulsar-timing datasets with hierarchical likelihoods and...
Pulsar-timing datasets have been analyzed with great success using probabilistic treatments based on Gaussian distributions, with applications ranging from studies of neutron-star structure to tests of...
View ArticleTaming outliers in pulsar-timing datasets with hierarchical likelihoods and...
Pulsar-timing datasets have been analyzed with great success using probabilistic treatments based on Gaussian distributions, with applications ranging from studies of neutron-star structure to tests of...
View ArticleStudy of Parametric Instability of gravitational wave detectors using silicon...
Parametric instability is an intrinsic risk in high power laser interferometer gravitational wave detectors, in which the optical cavity modes interact with the acoustic modes of the mirrors leading to...
View ArticleSpeckle lifetime in XAO coronagraphic images: temporal evolution of SPHERE...
The major source of noise in high-contrast imaging is the presence of slowly evolving speckles that do not average with time. The temporal stability of the point-spread-function (PSF) is therefore...
View ArticleLBCS: the LOFAR Long-Baseline Calibrator Survey [Replacement]
(abridged). We outline LBCS (the LOFAR Long-Baseline Calibrator Survey), whose aim is to identify sources suitable for calibrating the highest-resolution observations made with the International LOFAR...
View ArticleThe GALAH Survey: Observational Overview and Gaia DR1 companion
The Galactic Archaeology with HERMES (GALAH) Survey is a massive observational project to trace the Milky Way's history of star formation, chemical enrichment, stellar migration and minor mergers....
View ArticleEclipsing Binary Stars as Benchmarks for Trigonometric Parallaxes in the Gaia...
We present fits to the broadband photometric spectral energy distributions (SEDs) of 158 eclipsing binaries (EBs) in the Tycho-2 catalog. These EBs were selected because they have highly precise...
View ArticleStudy of Parametric Instability of gravitational wave detectors using silicon...
Parametric instability is an intrinsic risk in high power laser interferometer gravitational wave detectors, in which the optical cavity modes interact with the acoustic modes of the mirrors leading to...
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