Plasma code for astrophysical charge exchange emission at X-ray wavelengths
Charge exchange X-ray emission provides unique insights into the interactions between cold and hot astrophysical plasmas. Besides its own profound science, this emission is also technically crucial to...
View ArticleDetection of multiple velocity components in partially overlapping emitting...
Velocity measurements made from multiple-epoch astronomical images of evolving objects with optically thin continuum emission (e.g. as relativistic jets or expanding supernova shells) may be confused...
View ArticleComprehensive tests of artificial viscosities, their switches and derivative...
Hydrodynamical simulations of rotating disk play important roles in the field of astrophysical and planetary science. Smoothed Particle Hydrodynamics (SPH) has been widely used for such simulations....
View ArticleSystematic effects from an ambient-temperature, continuously-rotating...
We present an evaluation of systematic effects associated with a continuously-rotating, ambient-temperature half-wave plate (HWP) based on two seasons of data from the Atacama B-Mode Search (ABS)...
View ArticleWide-field broadband radio imaging with phased array feeds: a pilot...
The Boolardy Engineering Test Array is a 6 x 12 m dish interferometer and the prototype of the Australian Square Kilometre Array Pathfinder (ASKAP), equipped with the first generation of ASKAP's phased...
View ArticleExtreme Brightness Temperatures and Refractive Substructure in 3C273 with...
Earth-space interferometry with RadioAstron provides the highest direct angular resolution ever achieved in astronomy at any wavelength. RadioAstron detections of the classic quasar 3C273 on...
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....
View ArticleDetection Efficiency of Asteroid Surveys [Replacement]
A comprehensive characterization of the detection efficiency of nine of the major asteroid surveys that have been active over the past two decades is presented. The detection efficiency is estimated on...
View ArticleA detector module with highly efficient surface-alpha event rejection...
The cryogenic dark matter experiment CRESST-II aims at the direct detection of WIMPs via elastic scattering off nuclei in scintillating CaWO$_4$ crystals. We present a new, highly improved, detector...
View ArticleEnergy-Dependent Light Quenching in CaWO$_4$ Crystals at mK Temperatures...
Scintillating CaWO$_4$ single crystals are a promising multi-element target for rare-event searches and are currently used in the direct Dark Matter experiment CRESST (Cryogenic Rare Event Search with...
View ArticleThe Intrinsic Shape of Sagittarius A* at 3.5-mm Wavelength
The radio emission from Sgr A$^\ast$ is thought to be powered by accretion onto a supermassive black hole of $\sim\! 4\times10^6~ \rm{M}_\odot$ at the Galactic Center. At millimeter wavelengths, Very...
View ArticlePARAVT: Parallel Voronoi Tessellation code
We present a new open source code for massive parallel computation of Voronoi tessellations(VT hereafter) in large data sets. The code is focused for astrophysical purposes where VT densities and...
View ArticleRobust Filtering of Artifacts in Difference Imaging for Rapid Transients...
Real-time analysis and classification of observational data collected within synoptic sky surveys is a huge challenge due to constant growth of data volumes. Machine learning techniques are often...
View ArticleProspects for High-Precision Pulsar Timing with the New Effelsberg PSRIX Backend
The PSRIX backend is the primary pulsar timing instrument of the Effelsberg 100-m radio telescope since early 2011. This new ROACH-based system enables bandwidths up to 500 MHz to be recorded,...
View ArticleThe Importance of Wide-field Foreground Removal for 21 cm Cosmology: A...
In this paper we present observations, simulations, and analysis demonstrating the direct connection between the location of foreground emission on the sky and its location in cosmological power...
View ArticleAn Empirical Method for Improving the Quality of RXTE HEXTE Spectra
We have developed a correction tool to improve the quality of RXTE HEXTE spectra by employing the same method we used earlier to improve the quality of RXTE PCA spectra. We fit all of the hundreds of...
View ArticleA Michelson-type Radio Interferometer for University Education
We report development of a simple and affordable radio interferometer suitable as an educational laboratory experiment. With the increasing importance of interferometry in astronomy, the lack of...
View ArticleMusic from the heavens – Gravitational waves from supermassive black hole...
We estimate the expected event rate of gravitational wave signals from mergers of supermassive black holes that could be resolved by a space-based interferometer, such as the Evolved Laser...
View ArticlePARAVT: Parallel Voronoi Tessellation code [Replacement]
We present a new open source code for massive parallel computation of Voronoi tessellations(VT hereafter) in large data sets. The code is focused for astrophysical purposes where VT densities and...
View ArticleImproved WIMP scattering limits from the LUX experiment [Replacement]
We present constraints on WIMP-nucleus scattering from the 2013 data of the Large Underground Xenon (LUX) dark matter experiment, including $1.4\times10^{4}\,\mathrm{kg\cdot days}$ of search exposure....
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