Search for the primordial gravitational waves with Very Long Baseline...
Some models of the expanding Universe predict that the astrometric proper motion of distant radio sources embedded in space-time are non-zero as the radial distance from observer to the source grows....
View ArticleExperimental demonstration of binary shaped pupil mask coronagraphs for...
We present the fabrication and experimental demonstration of three free-standing binary shaped pupil mask coronagraphs, which are applicable for telescopes with partially obscured pupils. Three masks,...
View ArticleMultiplexed Readout for 1000-pixel Arrays of Microwave Kinetic Inductance...
Microwave Kinetic Inductance Detectors (MKIDs) are the most attractive radiation detectors for far-infrared and sub-mm astronomy: They combine ultimate sensitivity with the possibility to create very...
View ArticleStatistical Analysis of I Stokes Parameter of Millisecond Pulsars
Using Detrended Fluctuation Analysis (DFA) and box counting method, we test spacial correlation and fractality of Polarization Pulse Profiles (PPPs) of 24 millisecond pulsars (MSPs) which were observed...
View ArticleArchaeoastronomy and the orientation of old churches [Cross-Listing]
Cultural astronomy is an interdisciplinary area of research that studies how perceptions and concepts related to the sky are part of the worldview of a culture. One of its branches, archaeoastronomy,...
View ArticleHow to separate the low amplitude delta Scuti variation from the instrumental...
Rich regular frequency patterns were found in the Fourier spectra of low-amplitude delta Scuti stars observed by CoRoT satellite (see Papar\'o et al. 2016a,b). The CoRoT observations are, however,...
View ArticleX-ray Performance of Back-Side Illuminated Type of Kyoto’s X-ray Astronomical...
We have been developing X-ray SOI pixel Sensors, called "XRPIX", for future X-ray astronomy satellites that enable us to observe in the wide energy band of 0.5-40 keV. Since XRPIXs have the circuitry...
View ArticleTRIPPy: Trailed Image Photometry in Python
Photometry of moving sources typically suffers from reduced signal-to-noise (SNR) or flux measurements biased to incorrect low values through the use of circular apertures. To address this issue we...
View ArticleHASH: the Hong Kong/AAO/Strasbourg H-alpha planetary nebula database...
By incorporating our major recent discoveries with re-measured and verified contents of existing catalogues we provide, for the first time, an accessible, reliable, on-line SQL database for essential,...
View ArticleOptimizing StackSlide setup and data selection for...
The search for continuous gravitational waves in a wide parameter space at fixed computing cost is most efficiently done with semicoherent methods, e.g. StackSlide, due to the prohibitive computing...
View ArticleReview of the theoretical and experimental status of dark matter...
Recent years have seen increased theoretical and experimental effort towards the first-ever detection of cosmic-ray antideuterons, in particular as an indirect signature of dark matter annihilation or...
View ArticleOptimizing StackSlide setup and data selection for...
The search for continuous gravitational waves in a wide parameter space at fixed computing cost is most efficiently done with semicoherent methods, e.g. StackSlide, due to the prohibitive computing...
View ArticleWeak-Link Phenomena in AC-Biased Transition Edge Sensors [Cross-Listing]
It has been recently demonstrated that superconducting transition edge sensors (TESs) behave as weak-links due to longitudinally induced superconductivity from the leads with higher Tc. In this work we...
View ArticleDevelopment of the superconducting detectors and read-out for the X-IFU...
The Advanced Telescope for High-Energy Astrophysics (Athena) has been selected by ESA as its second large-class mission. The future European X-ray observatory will study the hot and energetic Universe...
View ArticleExploring the Transient Radio Sky with VLITE: Early Results
We report on a search for radio transients at 340 MHz with the Jansky Very Large Array (VLA) Low band Ionospheric and Transient Experiment (VLITE). Between 2015 July 29 and 2015 September 27, operating...
View ArticleGalaxy Redshifts from Discrete Optimization of Correlation Functions
We propose a new method of constraining the redshifts of individual extragalactic sources based on their celestial coordinates. Techniques from integer linear programming are utilized to optimize...
View ArticleDevelopment of TES-based detectors array for the X-ray Integral Field Unit...
We are developing transition-edge sensor (TES)-based microcalorimeters for the X-ray Integral Field Unit (XIFU) of the future European X-Ray Observatory Athena. The microcalorimeters are based on TiAu...
View ArticleThe Sensitivity of the Advanced LIGO Detectors at the Beginning of...
The Laser Interferometer Gravitational Wave Observatory (LIGO) consists of two widely separated 4 km laser interferometers designed to detect gravitational waves from distant astrophysical sources in...
View ArticleReview of the theoretical and experimental status of dark matter...
Recent years have seen increased theoretical and experimental effort towards the first-ever detection of cosmic-ray antideuterons, in particular as an indirect signature of dark matter annihilation or...
View ArticleReview of the theoretical and experimental status of dark matter...
Recent years have seen increased theoretical and experimental effort towards the first-ever detection of cosmic-ray antideuterons, in particular as an indirect signature of dark matter annihilation or...
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