Catalogue of star positions and B-magnitudes in 60th declination zone based...
Catalogue of star positions and B-magnitudes based on UkrVO Joint Digital Archive has been created in 60-degree declination zone of FONAK(FON) observational program as the first attempt to use the...
View ArticleQuasi-Normal Modes of Black Holes in Lovelock Gravity [Cross-Listing]
We study quasi-normal modes of black holes in Lovelock gravity. We formulate the WKB method adapted to Lovelock gravity for the calculation of quasi-normal frequencies (QNFs). As a demonstration, we...
View ArticleActive compensation of aperture discontinuities for WFIRST-AFTA: analytical...
The new frontier in the quest for the highest contrast levels in the focal plane of a coronagraph is now the correction of the large diffractive artifacts effects introduced at the science camera by...
View ArticlePrecise Astronomical Flux Calibration and its Impact on Studying the Nature...
Measurements of the luminosity of type Ia supernovae vs. redshift provided the original evidence for the accelerating expansion of the Universe and the existence of dark energy. Despite substantial...
View ArticleScalable splitting algorithms for big-data interferometric imaging in the SKA...
The Square Kilometre Array will be the largest sensor ever built by humankind and will acquire unprecedented amounts of data in radio astronomy. Recently, convex optimisation algorithms coupled with...
View ArticleMicrofabrication technology for large LEKID arrays : from NIKA2 to future...
The Lumped Element Kinetic Inductance Detectors (LEKID)demonstrated full maturity in the NIKA (New IRAM KID Arrays)instrument. These results allow directly comparing LEKID performance with other...
View ArticleProposed test of Lorentz Invariance using the Gravitational Wave...
Current limits on violation of local Lorentz invariance in the photon sector are derived mainly from experiments that search for a spatial anisotropy in the speed of light. The presently operating...
View ArticleSKA Weak Lensing II: Simulated Performance and Survey Design Considerations
We construct a pipeline for simulating weak lensing cosmology surveys with the Square Kilometre Array (SKA), taking as inputs telescope sensitivity curves; correlated source flux, size and redshift...
View ArticleAn analysis of feature relevance in the classification of astronomical...
The exploitation of present and future synoptic (multi-band and multi-epoch) surveys requires an extensive use of automatic methods for data processing and data interpretation. In this work, using data...
View ArticleProposed test of Lorentz Invariance using the Gravitational Wave Interferometers
Current limits on violation of local Lorentz invariance in the photon sector are derived mainly from experiments that search for a spatial anisotropy in the speed of light. The presently operating...
View ArticleGeneration of a Supervised Classification Algorithm for Time-Series Variable...
With the advent of digital astronomy, new benefits and new problems have been presented to the modern day astronomer. While data can be captured in a more efficient and accurate manor using digital...
View ArticleScalable splitting algorithms for big-data interferometric imaging in the SKA...
The Square Kilometre Array will be the largest sensor ever built by humankind and will acquire unprecedented amounts of data in radio astronomy. Recently, convex optimisation algorithms coupled with...
View ArticleDirect measurements of laser light aberration from the ARTEMIS geostationary...
A precise ground based telescope system was developed for laser communication experiments with the geostationary satellite ARTEMIS of ESA. Precise tracking of the satellite was realized by using time...
View ArticleTheory and Simulations of Refractive Substructure in Resolved...
At radio wavelengths, scattering in the interstellar medium distorts the appearance of astronomical sources. Averaged over a scattering ensemble, the result is a blurred image of the source. However,...
View ArticleStatus of the Cherenkov Telescope Array Project
Gamma-ray astronomy holds a great potential for Astrophysics, Particle Physics and Cosmology. The CTA is an inter- national initiative to build the next generation of ground-based gamma-ray...
View ArticleALMA Cycle 0 Publication Statistics
The scientific impact of a facility is the most important measure of its success. Monitoring and analysing the scientific return can help to modify and optimise operations and adapt to the changing...
View ArticleThe European ALMA Regional Centre Network: A Geographically Distributed User...
In recent years there has been a paradigm shift from centralised to geographically distributed resources. Individual entities are no longer able to host or afford the necessary expertise in-house, and,...
View ArticleThe NANOGrav Nine-year Data Set: Monitoring Interstellar Scattering Delays
We report on an effort to extract and monitor interstellar scintillation parameters in regular timing observations collected for the NANOGrav pulsar timing array. Scattering delays are measured by...
View ArticleOptimal CMB map-making in presence of cross-correlated noise
We present an extension of the ROMA map-making algorithm for the generation of optimal CMB temperature and polarization maps. The new code takes into account a possible cross-correlated noise component...
View ArticleMulti-Source Self-Calibration: Unveiling the microJy Population of Compact...
Context. Very Long Baseline Interferometry (VLBI) data are extremely sensitive to the phase stability of the VLBI array. This is especially important when we reach {\mu}Jy r.m.s. sensitivities....
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