Calibration of Radio Interferometers Using a Sparse DoA Estimation Framework...
The calibration of modern radio interferometers is a significant challenge, specifically at low frequencies. In this perspective, we propose a novel iterative calibration algorithm, which employs the...
View ArticleGaia reference frame amid quasar variability and proper motion patterns in...
Gaia's very accurate astrometric measurements will allow the International Celestial Reference Frame (ICRF) to be improved by a few orders of magnitude in the optical. Several sets of quasars are used...
View ArticleDerivation of the Hall and Extended Magnetohydrodynamics Brackets [Replacement]
There are several plasma models intermediate in complexity between ideal magnetohydrodynamics (MHD) and two-fluid theory, with Hall and Extended MHD being two important examples. In this paper we...
View ArticleApplication of a multiscale maximum entropy image restoration algorithm to...
This paper introduces a multiscale maximum entropy (MSME) algorithm for image restoration of the Hard X-ray Modulation Telescope (HXMT), which is a collimated scan X-ray satellite mainly devoted to a...
View ArticleIntrinsic neutron background of nuclear emulsions for directional Dark Matter...
Recent developments of the nuclear emulsion technology led to the production of films with nanometric silver halide grains suitable to track low energy nuclear recoils with submicrometric length. This...
View ArticleA new algorithm for optimizing the wavelength coverage for spectroscopic...
The past decade and a half has seen the design and execution of several ground-based spectroscopic surveys, both Galactic and Extra-galactic. Additionally, new surveys are being designed that extend...
View ArticleThe small-scale turbulent dynamo in smoothed particle magnetohydrodynamics
Supersonic turbulence is believed to be at the heart of star formation. We have performed smoothed particle magnetohydrodynamics (SPMHD) simulations of the small-scale dynamo amplification of magnetic...
View ArticleLumped Element Kinetic Inductance Detectors for space applications
Kinetic Inductance Detectors (KID) are now routinely used in ground-based telescopes. Large arrays, deployed in formats up to kilopixels, exhibit state-of-the-art performance at millimeter (e.g....
View ArticleDDOTI: the deca-degree optical transient imager
DDOTI will be a wide-field robotic imager consisting of six 28-cm telescopes with prime focus CCDs mounted on a common equatorial mount. Each telescope will have a field of view of 12 square degrees,...
View ArticleCOATLI: an all-sky robotic optical imager with 0.3 arcsec image quality
COATLI will provide 0.3 arcsec FWHM images from 550 to 900 nm over a large fraction of the sky. It consists of a robotic 50-cm telescope with a diffraction-limited fast-guiding imager. Since the...
View ArticleA comparison of methods for the detection of gravitational waves from unknown...
Rapidly rotating neutron stars are promising sources of continuous gravitational wave radiation for the LIGO and Virgo interferometers. The majority of neutron stars in our galaxy have not been...
View ArticleA comparison of methods for the detection of gravitational waves from unknown...
Rapidly rotating neutron stars are promising sources of continuous gravitational wave radiation for the LIGO and Virgo interferometers. The majority of neutron stars in our galaxy have not been...
View ArticleCalibration of Radio Interferometers Using a Sparse DoA Estimation Framework...
The calibration of modern radio interferometers is a significant challenge, specifically at low frequencies. In this perspective, we propose a novel iterative calibration algorithm, which employs the...
View ArticleMultiplicity of Galactic Cepheids from long-baseline interferometry~III....
We report new CHARA/MIRC interferometric observations of the Cepheid archetype $\delta$ Cep, which aimed at detecting the newly discovered spectroscopic companion. We reached a maximum dynamic range...
View ArticleSubtraction of correlated noise in global networks of gravitational-wave...
The recent discovery of merging black holes suggests that a stochastic gravitational-wave background is within reach of the advanced detector network operating at design sensitivity. However,...
View ArticleMulticore fibre technology – the road to multimode photonics
For the past forty years, optical fibres have found widespread use in ground-based and space-based instruments. In most applications, these fibres are used in conjunction with conventional optics to...
View ArticleSubtraction of correlated noise in global networks of gravitational-wave...
The recent discovery of merging black holes suggests that a stochastic gravitational-wave background is within reach of the advanced detector network operating at design sensitivity. However,...
View ArticleMore on molecular excitations: Dark matter detection in ice [Replacement]
In this paper we investigate di-atomic molecules embedded in ice crystals under strain. In this environment coherent vibrations of many OH-bonds may be generated by one WIMP collision. The detection of...
View ArticlePageRank Pipeline Benchmark: Proposal for a Holistic System Benchmark for...
The rise of big data systems has created a need for benchmarks to measure and compare the capabilities of these systems. Big data benchmarks present unique scalability challenges. The supercomputing...
View ArticleCharacterization of transient noise in Advanced LIGO relevant to...
On September 14, 2015, a gravitational wave signal from a coalescing black hole binary system was observed by the Advanced LIGO detectors. This paper describes the transient noise backgrounds used to...
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