CHISL: The Combined High-resolution and Imaging Spectrograph for the LUVOIR...
NASA is currently carrying out science and technical studies to identify its next astronomy flagship mission, slated to begin development in the 2020s. It has become clear that a Large...
View ArticleHigh purity NaI(Tl) scintillator to search for dark matter
A high purity and large volume NaI(Tl) scintillator was developed to search for cosmic dark matter. The required densities of radioactive impurities (RIs) such as U-chain, Th-chain are less than a few...
View ArticleAn Improved Model of Diffuse Galactic Radio Emission from 10 MHz to 5 THz
We present an improved Global Sky Model (GSM) of diffuse galactic radio emission from 10 MHz to 5 THz, whose uses include foreground modeling for CMB and 21 cm cosmology. Our model improves on past...
View ArticleMaximized ExoEarth Candidate Yields for Starshades
The design and scale of a future mission to directly image and characterize potentially Earth-like planets will be impacted, to some degree, by the expected yield of such planets. Recent efforts to...
View ArticleConcomitant Hamiltonian and topological structures of extended...
The paper describes the unique geometric properties of ideal magnetohydrodynamics (MHD), and demonstrates how such features are inherited by extended MHD, viz. models that incorporate two-fluid effects...
View ArticleDetection of thermal neutrons with the PRISMA-YBJ array in Extensive Air...
We report on a measurement of thermal neutrons, generated by the hadronic component of extensive air showers (EAS), by means of a small array of EN-detectors developed for the PRISMA project (PRImary...
View ArticleCluster-lensing: A Python Package for Galaxy Clusters & Miscentering
We describe a new open source package for calculating properties of galaxy clusters, including NFW halo profiles with and without the effects of cluster miscentering. This pure-Python package,...
View ArticleReviewing METI: A Critical Analysis of the Arguments [Cross-Listing]
There is an ongoing debate pertaining to the question of whether Earth should initiate intentional and powerful radio transmissions to putative extra-terrestrial (ET) civilizations in the hope of...
View ArticleClustering-based redshift estimation: application to VIPERS/CFHTLS
We explore the accuracy of the clustering-based redshift estimation proposed by M\'enard et al. (2013) when applied to VIPERS and CFHTLS real data. This method enables us to reconstruct redshift...
View ArticleThe Design of a Drag-Free CubeSat and the Housing for its Gravitational...
A Drag-Free CubeSat mission has been proposed to demonstrate the feasibility of a Gravitational Reference Sensor (GRS) with an optical readout for a 3 units (3U) spacecraft. A purely drag-free object...
View ArticleSeasonal and Lunar month periods observed in natural neutron flux at high...
Air radon concentration measurement is useful for research on geophysical effects, but it is strongly sensitive to site geology and many geophysical and microclimatic processes such as wind,...
View ArticleBrute-Force Mapmaking with Compact Interferometers: A MITEoR Northern Sky Map...
We present a new method for interferometric imaging that is ideal for the large fields of view and compact arrays common in 21~cm cosmology. We first demonstrate the method with simulations for two...
View ArticleTunable compression of template banks for fast gravitational-wave detection...
One strategy for reducing the online computational cost of matched-filter searches for gravitational waves is to introduce a compressed basis for the waveform template bank in a grid-based search. In...
View ArticleA new method to probe the thermal electron content of the Galaxy through...
We present a new method for probing the thermal electron content of the Galaxy by spectral analysis of background point sources in the absorption-only limit to the radiative transfer equation. In this...
View ArticleA Search for Highly Dispersed Fast Radio Bursts in Three Parkes Multibeam...
We have searched three Parkes multibeam 1.4 GHz surveys for the presence of fast radio bursts (FRBs) out to a dispersion measure (DM) of 5000 pc cm$^{-3}$. These surveys originally targeted the...
View ArticleWarmAndFuzzy: the halo model beyond CDM
Cold dark matter (CDM) is a well established paradigm to describe cosmological structure formation, and works extraordinarily well on large, linear, scales. Progressing further in dark matter physics...
View ArticleRadioAstron gravitational redshift experiment: status update
A test of a cornerstone of general relativity, the gravitational redshift effect, is currently being conducted with the RadioAstron spacecraft, which is on a highly eccentric orbit around Earth. Using...
View ArticleTunable compression of template banks for fast gravitational-wave detection...
One strategy for reducing the online computational cost of matched-filter searches for gravitational waves is to introduce a compressed basis for the waveform template bank in a grid-based search. In...
View ArticleInterstellar scintillations of PSR B1919+21: space-ground interferometry
We carried out observations of pulsar PSR B1919+21 at 324 MHz to study the distribution of interstellar plasma in the direction of this pulsar. We used the RadioAstron (RA) space radiotelescope...
View ArticleRadioAstron gravitational redshift experiment: status update [Cross-Listing]
A test of a cornerstone of general relativity, the gravitational redshift effect, is currently being conducted with the RadioAstron spacecraft, which is on a highly eccentric orbit around Earth. Using...
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