output
19912026
Showing 2011 · astro-ph.IMShow all

34 papers · 2 filters

astro-ph.IM2011★ 20 cited

The Cosmic Infrared Background Experiment (CIBER): The Low Resolution Spectrometer

K. Tsumura, T. Arai, J. Battle +20

Absolute spectrophotometric measurements of diffuse radiation at 1 μm to 2 μm are crucial to our understanding of the radiative content of the Universe from nucleosynthesis since t…

astro-ph.IM2011★ 64 cited

The Impact of Recent Advances in Laboratory Astrophysics on our Understanding of the Cosmos

D. W. Savin, N. S. Brickhouse, J. J. Cowan +11

An emerging theme in modern astrophysics is the connection between astronomical observations and the underlying physical phenomena that drive our cosmos. Both the mechanisms respon…

astro-ph.IM2011★ 38 cited

The Cosmic Infrared Background Experiment (CIBER): A Sounding Rocket Payload to Study the Near Infrared Extragalactic Background Light

M. Zemcov, T. Arai, J. Battle +16

The Cosmic Infrared Background Experiment (CIBER) is a suite of four instruments designed to study the near infrared (IR) background light from above the Earth's atmosphere. The in…

astro-ph.IM2011★ 35 cited

Very High Angular Resolution Science with the Square Kilometre Array

L. E. H. Godfrey, H. Bignall, S. Tingay +7

Preliminary specifications for the Square Kilometre Array (SKA) call for 25% of the total collecting area of the dish array to be located at distances greater than 180 km from the…

astro-ph.IM2011★ 85 cited

Application of a damped Locally Optimized Combination of Images method to the spectral characterization of faint companions using an Integral Field Spectrograph

Laurent Pueyo, Justin R. Crepp, Gautam Vasisht +14

High-contrast imaging instruments are now being equipped with integral field spectrographs (IFS) to facilitate the detection and characterization of faint substellar companions. Al…

astro-ph.IM2011★ 150 cited

Optimal Dark Hole Generation via Two Deformable Mirrors with Stroke Minimization

Laurent Pueyo, Jason Kay, N. Jeremy Kasdin +4

The past decade has seen a significant growth in research targeted at space based observatories for imaging exo-solar planets. The challenge is in designing an imaging system for h…

astro-ph.IM2011★ 3 cited

Real Time Classification of Transient Events in Synoptic Sky Surveys

Ashish A. Mahabal, C. Donalek, S. G. Djorgovski +6

An automated, rapid classification of transient events detected in the modern synoptic sky surveys is essential for their scientific utility and effective follow-up using scarce re…

astro-ph.IM2011★ 10 cited

Propagation of Aberrations through Phase Induced Amplitude Apodization coronagraph

Laurent Pueyo, N. Jeremy Kasdin, Stuart Shaklan

The specification of polishing requirements for the optics in coronagraphs dedicated to exo-planet detection requires careful and accurate optical modelling. Numerical representati…

astro-ph.IM2011★ 133 cited

A Well-Posed Kelvin-Helmholtz Instability Test and Comparison

Colin P. McNally, Wladimir Lyra, Jean-Claude Passy

Recently, there has been a significant level of discussion of the correct treatment of Kelvin-Helmholtz instability in the astrophysical community. This discussion relies largely o…

astro-ph.IM2011★ 11 cited

Discovery, classification, and scientific exploration of transient events from the Catalina Real-time Transient Survey

A. A. Mahabal, S. G. Djorgovski, A. J. Drake +8

Exploration of the time domain - variable and transient objects and phenomena - is rapidly becoming a vibrant research frontier, touching on essentially every field of astronomy an…

astro-ph.IM2011★ 16 cited

Towards an Automated Classification of Transient Events in Synoptic Sky Surveys

S. G. Djorgovski, C. Donalek, A. Mahabal +6

We describe the development of a system for an automated, iterative, real-time classification of transient events discovered in synoptic sky surveys. The system under development i…

astro-ph.IM2011★ 351 cited

PIONIER: a 4-telescope visitor instrument at VLTI

Jean-Baptiste Le Bouquin, J. -P. Berger, B. Lazareff +43

PIONIER stands for Precision Integrated-Optics Near-infrared Imaging ExpeRiment. It combines four 1.8m Auxilliary Telescopes or four 8m Unit Telescopes of the Very Large Telescope…

astro-ph.IM2011★ 1 cited

GalMass: A Smartphone Application for Estimating Galaxy Masses

Kyle R. Stewart

This note documents the methods used by the smartphone application, "GalMass," which has been released on the Android Market. GalMass estimates the halo virial mass (Mvir), stellar…

astro-ph.IM2011

Lossy compression of weak lensing data

R. Ali Vanderveld, Gary M. Bernstein, Chris Stoughton +4

Future orbiting observatories will survey large areas of sky in order to constrain the physics of dark matter and dark energy using weak gravitational lensing and other methods. Lo…

astro-ph.IM2011★ 81 cited

EVLA Observations of Galactic Supernova Remnants: Wide-field Continuum and Spectral-index Imaging

S. Bhatnagar, U. Rau, D. A. Green +1

The radio continuum emission from the Galaxy has a rich mix of thermal and non-thermal emission. This very richness makes their interpretation challenging since the low radio opaci…

astro-ph.IM2011★ 10 cited

Thermal architecture for the SPIDER flight cryostat

J. E. Gudmundsson, P. A. R. Ade, M. Amiri +40

We describe the cryogenic system for SPIDER, a balloon-borne microwave polarimeter that will map 8% of the sky with degree-scale angular resolution. The system consists of a 1284 L…

astro-ph.IM2011★ 29 cited

Design and performance of the Spider instrument

M. C. Runyan, P. A. R. Ade, M. Amiri +40

Here we describe the design and performance of the Spider instrument. Spider is a balloon-borne cosmic microwave background polarization imager that will map part of the sky at 90,…

astro-ph.IM2011★ 59 cited

V-FASTR: The VLBA Fast Radio Transients Experiment

Randall B. Wayth, Walter F. Brisken, Adam T. Deller +4

Recent discoveries of dispersed, non-periodic impulsive radio signals with single-dish radio telescopes have sparked significant interest in exploring the relatively uncharted spac…

astro-ph.IM2011★ 872 cited

The Five-Hundred-Meter Aperture Spherical Radio Telescope (FAST) Project

Rendong Nan, Di Li, Chengjin Jin +6

Five-hundred-meter Aperture Spherical radio Telescope (FAST) is a Chinese mega-science project to build the largest single dish radio telescope in the world. Its innovative enginee…

astro-ph.IM2011★ 46 cited

Optimal Linear Image Combination

Barnaby Rowe, Christopher Hirata, Jason Rhodes

A simple, yet general, formalism for the optimized linear combination of astrophysical images is constructed and demonstrated. The formalism allows the user to combine multiple und…

astro-ph.IM2011★ 22 cited

Detection of fast radio transients with multiple stations: a case study using the Very Long Baseline Array

David R. Thompson, Kiri L. Wagstaff, Walter Brisken +4

Recent investigations reveal an important new class of transient radio phenomena that occur on sub-millisecond timescales. Often transient surveys' data volumes are too large to ar…

astro-ph.IM2011★ 59 cited

Improving Interferometric Null Depth Measurements using Statistical Distributions: Theory and First Results with the Palomar Fiber Nuller

Hanot Charles, Mennesson Bertrand, Martin Stefan +6

A new "self-calibrated" statistical analysis method has been developed for the reduction of nulling interferometry data. The idea is to use the statistical distributions of the flu…

astro-ph.IM2011★ 10 cited

A dual-mask coronagraph for observing faint companions to binary stars

Eric Cady, Michael McElwain, N. Jeremy Kasdin +1

Observations of binary stars for faint companions with conventional coronagraphic methods are challenging, as both targets will be bright enough to obscure any nearby faint compani…

astro-ph.IM2011★ 76 cited

Improved High Contrast Imaging with On-Axis Telescopes using a Multi-Stage Vortex Coronagraph

Dimitri Mawet, Eugene Serabyn, J. Kent Wallace +1

The vortex coronagraph is one of the most promising coronagraphs for high contrast imaging because of its simplicity, small inner working angle, high throughput, and clear off-axis…