The AASTINO (Automated Astrophysical Site Testing INternational Observatory) is a remote laboratory that has been operating at Dome C station on the Antarctic plateau since January 2003. It is designed to run throughout the Antarctic winter without intervention, and to collect data on the astronomical qualities of the site. A Stirling engine and a pair of solar panels power the observatory. Com...

CUBES is the Cassegrain U-Band Efficient Spectrograph, a high-efficiency instrument operating in UV spectral range between 300nm and 400nm with resolution not less than 20000. to be installed at focus of Very Large Telescope European Southern Observatory. The paper briefly reviews various types devices used as dispersing elements astronomical spectrographs achieve high resolution, before identi...

Astronomical seeing is important for monitoring the atmospheric environment, observation scheduling and management, selecting astronomical sites. This study first attempts to establish a near-global map by employing fifth European Centre Medium-Range Weather Forecasts Reanalysis (ERA5) data combined with estimated model. Then, some example sites’ results from ERA5 were compared against balloon-...

In a previous paper we described a method of estimating the single-measurement bias to be expected in astrometric observations of targets in crowded fields with the future Space Interferometry Mission (SIM). That study was based on a simplified model of the instrument and the measurement process involving a single-pixel focal plane detector, an idealized spectrometer, and continuous sampling of...

This paper will describe efforts at developing broadband mirror coatings with high performance that will extend from infrared wavelengths down to the Far-Ultraviolet (FUV) spectral region. These mirror coatings would be realized by passivating the surface of freshly made aluminum coatings with XeF2 gas in order to form a thin AlF3 overcoat that will protect the aluminum from oxidation and, henc...

Beam characterization is of critical importance when analyzing and interpreting data from Cosmic Microwave Background (CMB) experiments. In this paper we present scanning strategies, data analysis methods and results of the 44 GHz (Q-Band) beam characterization for the Q/U Imaging ExperimenT (QUIET) PhaseI, using the Crab nebula (Tau A) and Jupiter as polarized and unpolarized point sources, re...

We have built and tested a compact, low-cost, but very-high-performance astronomical polarimeter based on continuously rotating half-wave plate high-speed imaging detector. The is suitable for small telescopes up to ~1 m in aperture. optical system provides very high transmission over wide wavelength range from the atmospheric UV cutoff ~1000 nm. high-quantum-efficiency, low-noise of detectors ...

In this study we investigated the generality of the electrophysiological mechanisms underlying verb agreement relations by looking not only at subject-verb (SV) but, moreover, at object-verb (OV) agreement phenomena in Basque-a language in which both the subject and the object have to agree with the verb. We first provide event-related potentials (ERP) evidence for processing differences in SV ...