Importance of the completeness of the configuration interaction and close...
We have carried-out two intermediate coupling frame transformation (ICFT) R-matrix calculations for the electron-impact excitation of C-like Fe $^{20+}$, both of which use the same expansions for their...
View ArticleConsiderations on the radio emission from extended air showers [Replacement]
The process of radio emission from extended air showers produced by high energy cosmic rays has reached a good level of comprehension and prediction. It has a coherent nature, so the emitted power...
View ArticleA Search for short-period Rocky Planets around WDs with the Cosmic Origins...
The search for transiting habitable exoplanets has broadened to include several types of stars that are smaller than the Sun in an attempt to increase the observed transit depth and hence the...
View ArticleMulti time-step wave-front reconstruction for tomographic Adaptive-Optics...
In tomographic adaptive-optics (AO) systems, errors due to tomographic wave-front reconstruction limit the performance and angular size of the scientific field of view (FoV), where AO correction is...
View ArticleInnoPOL: an EMCCD imaging polarimeter and 85-element curvature AO system on...
The Hokupa'a-85 curvature adaptive optics system components have been adapted to create a new AO-corrected coud\'{e} instrument at the 3.67m Advanced Electro-Optical System (AEOS) telescope. This new...
View ArticleNumerical test of the method for revealing traces of deterministic chaos in...
The high energy radiation emitted by black hole X-ray binaries originates in an accretion disk, hence the variability of the lightcurves mirrors the dynamics of the disc. We study the time evolution of...
View ArticleA multiplexer for the ac/dc characterization of TES based bolometers and...
At SRON we are developing the Frequency Domain Multiplexing (FDM) for the read-out of the TES-based detector array for the future infrared and X-ray space mission. We describe the performances of a...
View ArticleAC bias characterization of low noise bolometers for SAFARI using an...
SRON is developing the Frequency Domain Multiplexing (FDM) readout and the ultra low NEP TES bolometers array for the infrared spectrometer SAFARI on board of the Japanese space mission SPICA. The FDM...
View ArticleFixing the shadows while moving the gnomon [Cross-Listing]
It is a common practice to fix a vertical gnomon and study the moving shadow cast by it. This shows our local solar time and gives us a hint regarding the season in which we perform the observation....
View ArticleExcitation and charge transfer in low-energy hydrogen atom collisions with...
A theoretical method for the estimation of cross sections and rates for excitation and charge transfer processes in low-energy hydrogen atom collisions with neutral atoms, based on an asymptotic...
View ArticleFirst performance of the gems + gmos system. Part1. Imaging
During the commissioning of the Gemini MCAO System (GeMS), we had the opportunity to obtain data with the Gemini Multi-Object Spectrograph (GMOS), the most utilised instrument at Gemini South...
View ArticleDirected Energy Missions for Planetary Defense
Directed energy for planetary defense is now a viable option and is superior in many ways to other proposed technologies, being able to defend the Earth against all known threats. This paper presents...
View ArticleNew application of superconductors: high sensitivity cryogenic light...
In this paper we describe the current status of the CALDER project, which is developing ultra-sensitive light detectors based on superconductors for cryogenic applications. When we apply an AC current...
View ArticleSpectral calibration requirements of radio interferometers for Epoch of...
Spectral features introduced by instrumental chromaticity of radio interferometers have the potential to negatively impact the ability to perform Epoch of Reionisation (EoR) and Cosmic Dawn (CD)...
View ArticleThe offline software framework of the DAMPE experiment
A software framework has been developed for the DArk Matter Particle Explorer (DAMPE) mission, a satellite based experiment. The software framework of DAMPE is mainly written in C++ while the...
View ArticleYoung stellar structures in four nearby galaxies
A cluster finding method was developed and applied in four Local Group Galaxies (SMC, M31, M33 and NGC 6822). The aim is to study the young stellar population of these galaxies by identifying stellar...
View ArticleThe offline software framework of the DAMPE experiment [Cross-Listing]
A software framework has been developed for the DArk Matter Particle Explorer (DAMPE) mission, a satellite based experiment. The software framework of DAMPE is mainly written in C++ while the...
View ArticleNew application of superconductors: high sensitivity cryogenic light...
In this paper we describe the current status of the CALDER project, which is developing ultra-sensitive light detectors based on superconductors for cryogenic applications. When we apply an AC current...
View ArticleThe Euclidean distribution of Fast Radio Bursts
We investigate whether current data on the distribution of observed flux densities of Fast Radio Bursts (FRBs) are consistent with a constant source density in Euclidean space. We use the number of...
View ArticleThe orientation as a signature of cultural identity: The historic churches of...
The orientation of Christian churches is a well-known distinctive feature of their architecture. There is a general tendency to align their apses in the solar range, favoring orientations close to the...
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