Characterization of a dense aperture array for radio astronomy
EMBRACE@Nancay is a prototype instrument consisting of an array of 4608 densely packed antenna elements creating a fully sampled, unblocked aperture. This technology is proposed for the Square...
View ArticleState of the Field: Extreme Precision Radial Velocities
The Second Workshop on Extreme Precision Radial Velocities defined circa 2015 the state of the art Doppler precision and identified the critical path challenges for reaching 10 cm/s measurement...
View ArticleTransiting Planet Candidates Beyond the Snow Line Detected by Visual...
We visually inspected the light curves of 7557 Kepler Objects of Interest (KOIs) to search for single transit events (STEs) possibly due to long-period giant planets. We identified 28 STEs in 24 KOIs,...
View ArticleMulti-mode TES bolometer optimization for the LSPE-SWIPE instrument
In this paper we explore the possibility of using transition edge sensor (TES) detectors in multi-mode configuration in the focal plane of the Short Wavelength Instrument for the Polarization Explorer...
View ArticleThe Speedster-EXD- A New Event-Driven Hybrid CMOS X-ray Detector
The Speedster-EXD is a new 64x64 pixel, 40 $\mu$m pixel pitch, 100 $\mu$m depletion depth hybrid CMOS X-ray detector (HCD) with the capability of reading out only those pixels containing event charge,...
View ArticleAnisotropic Diffusion in Mesh-Free Numerical Magnetohydrodynamics
We extend recently-developed mesh-free Lagrangian methods for numerical magnetohydrodynamics (MHD) to arbitrary anisotropic diffusion equations, including: passive scalar diffusion, Spitzer-Braginskii...
View ArticleThat’s How We Roll: The NASA K2 Mission Science Products and Their...
NASA's exoplanet Discovery mission Kepler was reconstituted as the K2 mission a year after the failure of the 2nd of Kepler's 4 reaction wheels in May 2013. The new spacecraft pointing method now gives...
View ArticleGeometrical on-the-fly shock detection in SPH [Replacement]
We present an on-the-fly geometrical approach for shock detection and Mach number calculation in simulations employing smoothed particle hydrodynamics (SPH). We utilize pressure gradients to select...
View ArticleMeasurement of Muon Annual Modulation and Muon-Induced Phosphorescence in...
We report the measurement of muons and muon-induced phosphorescence in DM-Ice17, a NaI(Tl) direct detection dark matter experiment at the South Pole. Muon interactions in the crystal are identified by...
View ArticleThe AMBRE Project: Stellar Parameterisation of the ESO:UVES archived spectra
The AMBRE Project is a collaboration between the European Southern Observatory (ESO) and the Observatoire de la Cote d'Azur (OCA) that has been established in order to carry out the determination of...
View ArticleAtmospheric ionization by high-fluence, hard spectrum solar proton events and...
Solar energetic particles ionize the atmosphere, leading to production of nitrogen oxides. It has been suggested that some such events are visible as layers of nitrate in ice cores, yielding archives...
View ArticleTransiting Exoplanet Studies and Community Targets for JWST’s Early Release...
The James Webb Space Telescope will revolutionize transiting exoplanet atmospheric science due to its capability for continuous, long-duration observations and its larger collecting area, spectral...
View ArticleLow-rank plus sparse decomposition for exoplanet detection in direct-imaging...
Data processing constitutes a critical component of high-contrast exoplanet imaging. Its role is almost as important as the choice of a coronagraph or a wavefront control system, and it is intertwined...
View ArticleAn exact result concerning the $1/f$ noise contribution to the large-angle...
We present an exact expression for the $1/f$ contribution to the noise of the CMB temperature and polarization maps for a survey in which the scan pattern is isotropic. The result for polarization...
View ArticleMeasurement of Muon Annual Modulation and Muon-Induced Phosphorescence in...
We report the measurement of muons and muon-induced phosphorescence in DM-Ice17, a NaI(Tl) direct detection dark matter experiment at the South Pole. Muon interactions in the crystal are identified by...
View ArticleAn exact result concerning the $1/f$ noise contribution to the large-angle...
We present an exact expression for the $1/f$ contribution to the noise of the CMB temperature and polarization maps for a survey in which the scan pattern is isotropic. The result for polarization...
View ArticleState of the Field: Extreme Precision Radial Velocities [Replacement]
The Second Workshop on Extreme Precision Radial Velocities defined circa 2015 the state of the art Doppler precision and identified the critical path challenges for reaching 10 cm/s measurement...
View ArticleA reanalysis of radioisotope measurements of the $^9$Be$(\gamma,n)^8$Be...
The $^9$Be$(\gamma,n)^8$Be reaction is enhanced by a near threshold $1/2^+$ state. Contradictions between existing measurements of this reaction cross-section affect calculations of astrophysical...
View ArticleDerivation of the Hall and Extended Magnetohydrodynamics Brackets [Replacement]
There are several plasma models intermediate in complexity between ideal magnetohydrodynamics (MHD) and two-fluid theory, with Hall and Extended MHD being two important examples. In this paper we...
View ArticleTurning noise into signal: learning from the scatter in the Hubble diagram...
The supernova Hubble diagram residual contains valuable information on both the present matter power spectrum and its growth history. In this paper we show that this information can be retrieved with...
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