Observing gravitational-wave transient GW150914 with minimal assumptions...
The gravitational-wave signal GW150914 was first identified on Sept 14 2015 by searches for short-duration gravitational-wave transients. These searches identify time-correlated transients in multiple...
View ArticleDESAlert: Enabling Real-Time Transient Follow-Up with Dark Energy Survey Data...
The Dark Energy Survey (DES) is currently undertaking an observational program imaging $1/4$ of the southern hemisphere sky with unprecedented photometric accuracy. In the process of observing millions...
View ArticleOrbiter-to-orbiter tomography: a potential approach for small planetary objects
The goal of this paper is to advance mathematical and computational methodology for orbiter-to-orbiter radio tomography of small planetary objects. In this study, an advanced full waveform forward...
View ArticleScience Requirements and Trade-offs for the MOSAIC Instrument for the...
Building on the comprehensive White Paper on the scientific case for multi-object spectroscopy on the European ELT, we present the top-level instrument requirements that are being used in the Phase A...
View ArticleOperational optical turbulence forecast for the Service Mode of top-class...
In this contribution we present the most relevant results obtained in the context of a feasibility study (MOSE) undertaken for ESO. The principal aim of the project was to quantify the performances of...
View ArticleTowards an automatic system for monitoring of CN2 and wind speed profiles...
Wide Field Adaptive Optics (WFAO) systems represent the more sophisticated AO systems available today at large telescopes. A critical aspect for these WFAO systems in order to deliver an optimised...
View ArticleAn Ultraviolet imager to study bright UV sources
We have designed and developed a compact ultraviolet imaging payload to fly on a range of possible platforms such as high altitude balloon experiments, cubesats, space missions, etc. The primary...
View ArticleBalloon UV Experiments for Astronomical and Atmospheric Observations
The ultraviolet (UV) window has been largely unexplored through balloons for astronomy. We discuss here the development of a compact near-UV spectrograph with ?ber optics input for balloon ights. It is...
View Article880 $\mu$m SMA polarization observations of the quasar 3C 286
For decades the bright radio quasar 3C 286 has been widely recognized as one of the most reliable polarization calibrators at centimeter wavelengths because of its unchanging polarization position...
View ArticleFirst Season MWA EoR Power Spectrum Results at Redshift 7
The Murchison Widefield Array (MWA) has collected hundreds of hours of Epoch of Reionization (EoR) data and now faces the challenge of overcoming foreground and systematic contamination to reduce the...
View ArticleSearching for electromagnetic counterpart of LIGO gravitational waves in the...
The Fermi collaboration identified a possible electromagnetic counterpart of the gravitational wave event of September 14, 2015. Our goal is to provide an unsupervised data analysis algorithm to...
View ArticleOptical performance of prototype horn-coupled TES bolometer arrays for SAFARI
The SAFARI Detector Test Facility is an ultra-low background optical testbed for characterizing ultra-sensitive prototype horn-coupled TES bolmeters for SAFARI, the grating spectrometer on board the...
View ArticleHigh resolution VLBI polarisation imaging of AGN with the Maximum Entropy Method
Radio polarisation images of the jets of Active Galactic Nuclei (AGN) can provide a deep insight into the launching and collimation mechanisms of relativistic jets. However, even at VLBI scales,...
View ArticleElectromagnetic 3D subsurface imaging with source sparsity for a synthetic...
This paper concerns electromagnetic 3D subsurface imaging in connection with sparsity of signal sources. We explored an imaging approach that can be implemented in situations that allow obtaining a...
View ArticleGravityCam: Higher Resolution Visible Wide-Field Imaging
The limits to the angular resolution achievable with conventional ground-based telescopes are unchanged over 70 years. Atmospheric turbulence limits image quality to typically ~1 arcsec in practice. We...
View ArticleThe 2nd Generation VLTI path to performance
The upgrade of the VLTI infrastructure for the 2nd generation instruments is now complete with the transformation of the laboratory, and installation of star separators on both the 1.8-m Auxiliary...
View ArticleExtended MHD turbulence and its applications to the solar wind [Cross-Listing]
Extended MHD is a one-fluid model that incorporates two-fluid effects such as electron inertia and the Hall drift. This model is used to construct fully nonlinear Alfv\'enic wave solutions, and thereby...
View ArticleSearching for electromagnetic counterpart of LIGO gravitational waves in the...
The Fermi collaboration identified a possible electromagnetic counterpart of the gravitational wave event of September 14, 2015. Our goal is to provide an unsupervised data analysis algorithm to...
View ArticleFemtoDAQ: A Low-Cost Digitizer for SiPM-Based Detector Studies and its...
The FemtoDAQ is a low-cost two channel data acquisition system which we have used to investigate the signal characteristics of silicon photomultipliers (SiPMs) coupled to fast scintillators. The...
View ArticleFemtoDAQ: A Low-Cost Digitizer for SiPM-Based Detector Studies and its...
The FemtoDAQ is a low-cost two channel data acquisition system which we have used to investigate the signal characteristics of silicon photomultipliers (SiPMs) coupled to fast scintillators. The...
View Article