A Real-time Coherent Dedispersion Pipeline for the Giant Metrewave Radio...
A fully real-time coherent dedispersion system has been developed for the pulsar back-end at the Giant Metrewave Radio Telescope (GMRT). The dedispersion pipeline uses the single phased array voltage...
View ArticleFlasher and muon-based calibration of the GCT telescopes proposed for the...
The GCT is a dual-mirror Small-Sized-Telescope prototype proposed for the Cherenkov Telescope Array. Calibration of the GCT's camera is primarily achieved with LED-based flasher units capable of...
View ArticleDetection of Noisy and Flickering Pixels from SWIFT BAT Event Data
This document presents novel algorithms for detection of noisy and flickering pixels from BAT event data and subsequent elimination of data from such pixels to create a filtered event file. The file...
View ArticleFirst Light Results from the Hermes Spectrograph at the AAT
The High Efficiency and Resolution Multi Element Spectrograph, HERMES, is a facility-class optical spectrograph for the Anglo-Australian Telescope (AAT). It is designed primarily for Galactic...
View ArticleLivetime and sensitivity of the ARIANNA Hexagonal Radio Array
The ARIANNA collaboration completed the installation of the hexagonal radio array (HRA) in December 2014, serving as a pilot program for a planned high energy neutrino telescope located about 110 km...
View ArticlePerformance of the ARIANNA Hexagonal Radio Array
Installation of the ARIANNA Hexagonal Radio Array (HRA) on the Ross Ice Shelf of Antarctica has been completed. This detector serves as a pilot program to the ARIANNA neutrino telescope, which aims to...
View ArticleFacilitating follow-up of LIGO-Virgo events using rapid sky localization
Fast and effective localization of gravitational wave (GW) events could play a crucial role in identifying possible electromagnetic counterparts, and thereby help usher in an era of GW multi-messenger...
View ArticleA Machine Learning Technique to Identify Transit Shaped Signals
We describe a new metric that uses machine learning to determine if a periodic signal found in a photometric time series appears to be shaped like the signature of a transiting exoplanet. This metric...
View ArticleThe impact of correlated noise on galaxy shape estimation for weak lensing
The robust estimation of the tiny distortions (shears) of galaxy shapes caused by weak gravitational lensing in the presence of much larger shape distortions due to the point-spread function (PSF) has...
View ArticleHigh-contrast imaging of Sirius~A with VLT/SPHERE: Looking for giant planets...
Sirius has always attracted a lot of scientific interest, especially after the discovery of a companion white dwarf at the end of the 19th century. Very early on, the existence of a potential third...
View ArticleDirect Exoplanet Detection with Binary Differential Imaging
Binaries are typically excluded from direct imaging exoplanet surveys. However, the recent findings of Kepler and radial velocity programs show that planets can and do form in binary systems. Here, we...
View ArticleMeasurement of the Proton-Air Cross Section with Telescope Array’s Middle...
In this work we are reporting on the measurement of the proton-air inelastic cross section $\sigma^{\rm inel}_{\rm p-air}$ using the Telescope Array (TA) detector. Based on the measurement of the...
View ArticleSpace-time adaptive ADER discontinuous Galerkin finite element schemes with a...
In this paper we present a novel arbitrary high order accurate discontinuous Galerkin (DG) finite element method on space-time adaptive Cartesian meshes (AMR) for hyperbolic conservation laws in...
View ArticleLearn-As-You-Go Acceleration of Cosmological Parameter Estimates [Replacement]
Cosmological analyses can be accelerated by approximating slow calculations using a training set, which is either precomputed or generated dynamically. However, this approach is only safe if the...
View ArticlePhotometry Transformation from RGB Bayer Filter System to Johnson-Cousins BVR...
The RGB Bayer filter system consists of a mosaic of R, G, and B filters on the grid of the photo sensors which typical commercial DSLR (Digital Single Lens Reflex) cameras and CCD cameras are equipped...
View ArticleA Neural Network-Based Monoscopic Reconstruction Algorithm for H.E.S.S. II
The H.E.S.S. experiment entered its phase II with the addition of a new, large telescope named CT 5 that was added to the centre of the existing array of four smaller telescopes. The new telescope is...
View ArticleConstruction of a Medium-Sized Schwarzschild-Couder Telescope for the...
A medium-sized Schwarzchild-Couder Telescope (SCT) is being developed as a possible extension for the Cherenkov Telescope Array (CTA). The Cherenkov camera of the telescope is designed to have 11328...
View ArticlePerformance analysis of the Least-Squares estimator in Astrometry
We characterize the performance of the widely-used least-squares estimator in astrometry in terms of a comparison with the Cramer-Rao lower variance bound. In this inference context the performance of...
View ArticleInnovative static spectropolarimeter concept for wide spectral ranges:...
Developing an efficient and robust polarimeter for wide spectral ranges and space applications is a main issue in many projects. As part of the UVMag consortium created to develop UV facilities in...
View ArticleThe Si/CdTe semiconductor Compton camera of the ASTRO-H Soft Gamma-ray...
The Soft Gamma-ray Detector (SGD) is one of the instrument payloads onboard ASTRO-H, and will cover a wide energy band (60--600 keV) at a background level 10 times better than instruments currently in...
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