Using UV-pass filters for bright Moon observations with MAGIC [Replacement]
MAGIC is a system of two Imaging Atmospheric Cherenkov Telescopes (IACT) that observe Very High Energy (VHE) gamma ray sources. The PMTs in their cameras are designed to operate under moonlight, but...
View ArticleEuropean Pulsar Timing Array Limits On An Isotropic Stochastic...
We present new limits on an isotropic stochastic gravitational-wave background (GWB) using a six pulsar dataset spanning 18 yr of observations from the 2015 European Pulsar Timing Array data release....
View ArticleObservations of the Crab Nebula with H.E.S.S. Phase II
The High Energy Stereoscopic System (H.E.S.S.) phase I instrument was an array of four $100\,\mathrm{m}^2$ mirror area Imaging Atmospheric Cherenkov Telescopes (IACTs) that has very successfully mapped...
View ArticlePhoton Reconstruction for H.E.S.S. Using a Semi-Analytical Shower Model
The High Energy Stereoscopic System (H.E.S.S.) is an array of five Imaging Atmospheric Cherenkov Telescopes (IACTs) designed to detect cosmogenic gamma-rays with very high energies. Originally...
View ArticleEnhanced H.E.S.S. II low energies performance thanks to the focus system
For the current generation of Imaging Atmospheric Cherenkov Telescopes (IACTs), with their large mirrors and their cameras with fine segmentation of photodetectors, the focusing capability is a...
View ArticleToward the full test of the nuMSM sterile neutrino dark matter model with Athena
We discuss the potential of Athena X-ray telescope, in particular of its X-ray Integral Field Unit (X-IFU), for detection of the signal from the light-weight decaying dark matter with mass in the keV...
View ArticleSearch for dark matter in the hidden-photon sector with a large spherical...
If dark matter consists of hidden-sector photons which kinetically mix with regular photons, a tiny oscillating electric-field component is present wherever we have dark matter. In the surface of...
View ArticleOptical module HEW simulations for the X-ray telescopes SIMBOL-X, EDGE and XEUS
One of the most important parameters defining the angular resolution of an X-ray optical module is its Half-Energy Width (HEW) as a function of the photon energy. Future X-ray telescopes with imaging...
View ArticleHEW simulations and quantification of the microroughness requirements for...
Future X-ray telescopes like SIMBOL-X will operate in a wide band of the X-ray spectrum (from 0.1 to 80 keV); these telescopes will extend the optical performances of the existing soft X-ray telescopes...
View ArticleSurface smoothness requirements for the mirrors of the IXO X-ray telescope
The International X-ray Observatory (IXO) is a very ambitious mission, aimed at the X-ray observation of the early Universe. This makes IXO extremely demanding in terms of effective area and angular...
View ArticleTHERMAP: a mid-infrared spectro-imager for space missions to small bodies in...
We present THERMAP, a mid-infrared (8-16 {\mu}m) spectro-imager for space missions to small bodies in the inner solar system, developed in the framework of the MarcoPolo-R asteroid sample return...
View ArticleItalian Science Case for ALMA Band 2+3
The Premiale Project "Science and Technology in Italy for the upgraded ALMA Observatory - iALMA" has the goal of strengthening the scientific, technological and industrial Italian contribution to the...
View ArticleThe ARCADE Raman Lidar System for the Cherenkov Telescope Array
The Cherenkov Telescope Array (CTA) is the next generation of ground-based very high energy gamma-ray instruments; the facility will be organized in two arrays, one for each hemisphere. The atmospheric...
View ArticlePerspective of monochromatic gamma-ray line detection with the High Energy...
HERD is the High Energy cosmic-Radiation Detection instrument proposed to operate onboard China's space station in the 2020s. It is designed to detect energetic cosmic ray nuclei, leptons and photons...
View ArticlePerspective of monochromatic gamma-ray line detection with the High Energy...
HERD is the High Energy cosmic-Radiation Detection instrument proposed to operate onboard China's space station in the 2020s. It is designed to detect energetic cosmic ray nuclei, leptons and photons...
View ArticleSouth Galactic Cap u-band Sky Survey (SCUSS): Data Reduction
The South Galactic Cap u-band Sky Survey (SCUSS) is a deep u-band imaging survey in the Southern Galactic Cap, using the 90Prime wide-field imager on the 2.3m Bok telescope at Kitt Peak. The survey...
View ArticleZ45: A New 45-GHz Band Dual-Polarization HEMT Receiver for the NRO 45-m Radio...
We developed a dual-linear-polarization HEMT (High Electron Mobility Transistor) amplifier receiver system of the 45-GHz band (hereafter Z45), and installed it in the Nobeyama 45-m radio telescope. The...
View ArticleThe Power of Simultaneous Multi-Frequency Observations for mm-VLBI:...
Simultaneous observations at multiple frequencies have the potential to overcome the fundamental limitation imposed by the atmospheric propagation in mm-VLBI observations. The propagation effects place...
View ArticleSearch for dark matter in the hidden-photon sector with a large spherical...
If dark matter consists of hidden-sector photons which kinetically mix with regular photons, a tiny oscillating electric-field component is present wherever we have dark matter. In the surface of...
View ArticleOptimized Large-Scale CMB Likelihood And Quadratic Maximum Likelihood Power...
We revisit the problem of exact CMB likelihood and power spectrum estimation with the goal of minimizing computational cost through linear compression. This idea was originally proposed for CMB...
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