2014 – Kavli Institute Pre-Print Publications

Serendipitous discovery of a dying Giant Radio Galaxy associated with NGC 1534, using the Murchison Widefield Array

Posted by klaurent December 11, 2014MIT

Kavli Affiliate: Robert Goeke | First 5 Authors: Natasha Hurley-Walker, Melanie Johnston-Hollitt, Ron Ekers, Richard Hunstead, Elaine M. Sadler | Summary: Recent observations with the Murchison Widefield Array at 185~MHz have serendipitously unveiled a heretofore unknown giant and relatively nearby ($z = 0.0178$) radio galaxy associated with NGC,1534. The diffuse emission presented here is the […]

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GREAT3 results I: systematic errors in shear estimation and the impact of real galaxy morphology

Posted by klaurent December 4, 2014Stanford

Kavli Affiliate: Philip J. Marshall | First 5 Authors: Rachel Mandelbaum, Barnaby Rowe, Robert Armstrong, Deborah Bard, Emmanuel Bertin | Summary: We present first results from the third GRavitational lEnsing Accuracy Testing (GREAT3) challenge, the third in a sequence of challenges for testing methods of inferring weak gravitational lensing shear distortions from simulated galaxy images. […]

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Modeling the Expected Performance of the REgolith X-ray Imaging Spectrometer (REXIS)

Posted by klaurent October 12, 2014MIT

Kavli Affiliate: Rebecca A. Masterson | First 5 Authors: Niraj K. Inamdar, Richard P. Binzel, Jae Sub Hong, Branden Allen, Jonathan Grindlay | Summary: OSIRIS-REx is the third spacecraft in the NASA New Frontiers Program and is planned for launch in 2016. OSIRIS-REx will orbit the near-Earth asteroid (101955) Bennu, characterize it, and return a […]

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Multiple Soft Limits of Cosmological Correlation Functions

Posted by September 22, 2014Chicago

Kavli Affiliate: Austin Joyce | First 5 Authors: Austin Joyce, Justin Khoury, Marko Simonović, , | Summary: We derive novel identities satisfied by inflationary correlation functions in the limit where two external momenta are taken to be small. We derive these statements in two ways: using background-wave arguments and as Ward identities following from the […]

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Fifteen years of the Advanced CCD Imaging Spectrometer

Posted by klaurent July 24, 2014MIT

Kavli Affiliate: Peter G. Ford | First 5 Authors: Catherine E. Grant, Mark W. Bautz, Peter G. Ford, Paul P. Plucinsky, | Summary: As the Advanced CCD Imaging Spectrometer (ACIS) on the Chandra X-ray Observatory enters its fifteenth year of operation on orbit, it continues to perform well and produce spectacular scientific results. The response […]

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Large-area Reflective Infrared Filters for Millimeter/sub-mm Telescopes

Posted by July 22, 2014Stanford

Kavli Affiliate: Chao-Lin Kuo | First 5 Authors: Z. Ahmed, J. A. Grayson, K. L. Thompson, C. L. Kuo, G. Brooks | Summary: Ground-based millimeter and sub-millimeter telescopes are attempting to image the sky with ever-larger cryogenically-cooled bolometer arrays, but face challenges in mitigating the infrared loading accompanying large apertures. Absorptive infrared filters supported by […]

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A framework for modeling the detailed optical response of thick, multiple segment, large format sensors for precision astronomy applications

Posted by klaurent July 21, 2014Stanford

Kavli Affiliate: Steven Kahn | First 5 Authors: Andrew Rasmussen, Pierre Antilogus, Pierre Astier, Chuck Claver, Peter Doherty | Summary: Near-future astronomical survey experiments, such as LSST, possess system requirements of unprecedented fidelity that span photometry, astrometry and shape transfer. Some of these requirements flow directly to the array of science imaging sensors at the […]

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Network of Time-Multiplexed Optical Parametric Oscillators as a Coherent Ising Machine

Posted by July 10, 2014Caltech

Kavli Affiliate: Alireza Marandi | First 5 Authors: Alireza Marandi, Zhe Wang, Kenta Takata, Robert L. Byer, Yoshihisa Yamamoto | Summary: Finding the ground states of the Ising Hamiltonian [1] maps to various combinatorial optimization problems in biology, medicine, wireless communications, artificial intelligence, and social network. So far no efficient classical and quantum algorithm is […]

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Witten Index and Wall Crossing

Posted by klaurent July 9, 2014Tokyo

Kavli Affiliate: Kentaro Hori | First 5 Authors: Kentaro Hori, Heeyeon Kim, Piljin Yi, , | Summary: We compute the Witten index of one-dimensional gauged linear sigma models with at least ${mathcal N}=2$ supersymmetry. In the phase where the gauge group is broken to a finite group, the index is expressed as a certain residue […]

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The Heavy Photon Search Test Detector

Posted by klaurent June 24, 2014Stanford

Kavli Affiliate: Homer Neal | First 5 Authors: Marco Battaglieri, Sergey Boyarinov, Stephen Bueltmann, Volker Burkert, Andrea Celentano | Summary: The Heavy Photon Search (HPS), an experiment to search for a hidden sector photon in fixed target electroproduction, is preparing for installation at the Thomas Jefferson National Accelerator Facility (JLab) in the Fall of 2014. […]

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