Are we there yet? Time to detection of nanohertz gravitational waves based on...
Decade-long timing observations of arrays of millisecond pulsars have placed highly constraining upper limits on the amplitude of the nanohertz gravitational-wave stochastic signal from the mergers of...
View ArticleFast and reliable symplectic integration for planetary system $N$-body...
We apply one of the exactly symplectic integrators, that we call HB15, of \cite{HB15}, along with the Kepler problem solver of \cite{WH15}, to solve planetary system $N$-body problems. We compare the...
View ArticleWIMP-Search Results from the Second CDMSlite Run [Replacement]
The CDMS low ionization threshold experiment (CDMSlite) uses cryogenic germanium detectors operated at a relatively high bias voltage to amplify the phonon signal in the search for weakly interacting...
View ArticleNew methods to constrain the radio transient rate: results from a survey of...
We report on the results of a search for radio transients between 115 and 190\,MHz with the LOw-Frequency ARray (LOFAR). Four fields have been monitored with cadences between 15 minutes and several...
View ArticleOptical Demonstration of THz, Dual-Polarization Sensitive Microwave Kinetic...
The next generation BLAST experiment (BLAST-TNG) is a suborbital balloon payload that seeks to map polarized dust emission in the 250 $\mu$m, 350 $\mu$m and 500 $\mu$m wavebands. The instrument...
View ArticleOn the technique for the recovery of the spectrum of turbulence in...
We present a method that can be used to recover the spectrum of turbulence from observations of optically thin emission lines formed in astrophysical disks. Within this method we analyze how line...
View ArticleFrequency Modulation of Directly Imaged Exoplanets: Geometric Effect as a...
We consider the time-frequency analysis of a scattered light curve by a directly imaged exoplanet. We show that the geometric effect due to planetary obliquity and orbital inclination induce the...
View ArticlePractical Limits in the Sensitivity-Linearity Trade-off for Radio Telescope...
Radio telescope front ends must have simultaneously low noise and sufficiently-high linearity to accommodate interfering signals. Typically these are opposing design goals. For modern radio telescopes...
View ArticleWIMP-Search Results from the Second CDMSlite Run [Replacement]
The CDMS low ionization threshold experiment (CDMSlite) uses cryogenic germanium detectors operated at a relatively high bias voltage to amplify the phonon signal in the search for weakly interacting...
View ArticleEffects Of The Ionosphere On Ground-Based Detection Of The Global 21 CM...
Detection of the global HI 21 cm signal from Cosmic Dawn and Epoch of Reionization is the key science driver for several ongoing ground-based and future ground/space-based experiments. The crucial...
View ArticleOn Bayesian analysis of on-off measurements
We propose an analytical solution to the on-off problem within the framework of Bayesian statistics. Both the statistical significance for the discovery of new phenomena and credible intervals on model...
View ArticleOn the reliability of observational measurements of column density...
Probability distribution functions (PDFs) of column densities are an established tool to characterize the evolutionary state of interstellar clouds. Using simulations, we show to what degree their...
View ArticleOptical Response of Strained- and Unstrained-Silicon Cold-Electron Bolometers
We describe the optical characterisation of two silicon cold-electron bolometers each consisting of a small ($32 \times 14~\mathrm{\mu m}$) island of degenerately doped silicon with superconducting...
View ArticleThe Cologne Database for Molecular Spectroscopy, CDMS, in the Virtual Atomic...
The CDMS was founded 1998 to provide in its catalog section line lists of molecular species which may be observed in various astronomical sources using radio astronomy. The line lists contain...
View ArticleSelf-Gravitational Force Calculation of Infinitesimally Thin Gaseous Disks on...
We extend the work of Yen et al. (2012) and develop 2nd order formulae to accommodate a nested grid discretization for the direct self-gravitational force calculation for infinitesimally thin gaseous...
View ArticleThe VLA Low Band Ionospheric and Transient Experiment (VLITE): A Commensal...
The US Naval Research Laboratory (NRL) and the National Radio Astronomy Observatory (NRAO) have collaborated to develop, install, and commission a new commensal system on the Karl G. Jansky Very Large...
View ArticleSick, the spectroscopic inference crank
There exists an inordinate amount of spectral data in both public and private astronomical archives which remain severely under-utilised. The lack of reliable open-source tools for analysing large...
View ArticleDegeneracy between Lensing and Occultation in the Analysis of Self-lensing...
More than 40 years after the first discussion, it was recently reported the detection of a self-lensing phenomenon within a binary system where the brightness of a background star is magnified by its...
View ArticleThe Topo-trigger: a new concept of stereo trigger system for imaging...
Imaging atmospheric Cherenkov telescopes (IACTs) such as the Major Atmospheric Gamma-ray Imaging Cherenkov (MAGIC) telescopes endeavor to reach the lowest possible energy threshold. In doing so the...
View ArticleSecond-order variational equations for N-body simulations
First-order variational equations are widely used in N-body simulations to study how nearby trajectories diverge from one another. These allow for efficient and reliable determinations of chaos...
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