Science with the Murchison Widefield Array

Kavli Affiliate: Jacqueline Barton| First 5 Authors: Judd D. Bowman, Judd D. Bowman, , , | Summary:Significant new opportunities for astrophysics and cosmology have been identified at low radio frequencies. The Murchison Widefield Array is the first telescope in the Southern Hemisphere designed specifically to explore the low-frequency astronomical sky between 80 and 300 MHz […]


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Comparison of electromagnetic and gravitational radiation; what we can learn about each from the other

Kavli Affiliate: John Belcher| First 5 Authors: Richard H. Price, Richard H. Price, , , | Summary:We compare the nature of electromagnetic fields and of gravitational fields in linearized general relativity. We carry out this comparison both mathematically and visually. In particular the "lines of force" visualizations of electromagnetism are contrasted with the recently introduced […]


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A new approach to simulating collisionless dark matter fluids

Kavli Affiliate: Ralf Kaehler| First 5 Authors: Oliver Hahn, Oliver Hahn, , , | Summary:Recently, we have shown how current cosmological N-body codes already follow the fine grained phase-space information of the dark matter fluid. Using a tetrahedral tesselation of the three-dimensional manifold that describes perfectly cold fluids in six-dimensional phase space, the phase-space distribution […]


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The Multi-Object, Fiber-Fed Spectrographs for SDSS and the Baryon Oscillation Spectroscopic Survey

Kavli Affiliate: Mark SubbaRao| First 5 Authors: Stephen Smee, Stephen Smee, , , | Summary:We present the design and performance of the multi-object fiber spectrographs for the Sloan Digital Sky Survey (SDSS) and their upgrade for the Baryon Oscillation Spectroscopic Survey (BOSS). Originally commissioned in Fall 1999 on the 2.5-m aperture Sloan Telescope at Apache […]


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Status Report of the DPHEP Study Group: Towards a Global Effort for Sustainable Data Preservation in High Energy Physics

Kavli Affiliate: Homer Neal| First 5 Authors: Z. Akopov, Z. Akopov, , , | Summary:Data from high-energy physics (HEP) experiments are collected with significant financial and human effort and are mostly unique. An inter-experimental study group on HEP data preservation and long-term analysis was convened as a panel of the International Committee for Future Accelerators […]


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AVAST Survey 0.4-1.0 μm Spectroscopy of Igneous Asteroids in the Inner and Middle Main Belt

Kavli Affiliate: Geza Gyuk| First 5 Authors: Michael Solontoi, Michael Solontoi, , , | Summary:We present the spectra of 60 asteroids, including 47 V-types observed during the first phase of the Adler V-Type Asteroid (AVAST) Survey. SDSS photometry was used to select candidate V-type asteroids for follow up by nature of their very blue $i-z$ […]


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Reduction of thermal fluctuations in a cryogenic laser interferometric gravitational wave detector

Kavli Affiliate: Tomiyoshi Haruyama| First 5 Authors: Takashi Uchiyama, Takashi Uchiyama, , , | Summary:The thermal fluctuation of mirror surfaces is the fundamental limitation for interferometric gravitational wave (GW) detectors. Here, we experimentally demonstrate for the first time a reduction in a mirror’s thermal fluctuation in a GW detector with sapphire mirrors from the Cryogenic […]


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Irregular transcription dynamics for rapid production of high-fidelity transcripts

Kavli Affiliate: Martin Depken| First 5 Authors: Martin Depken, Martin Depken, , , | Summary:Both genomic stability and sustenance of day-to-day life rely on efficient and accurate readout of the genetic code. Single-molecule experiments show that transcription and replication are highly stochastic and irregular processes, with the polymerases frequently pausing and even reversing direction. While […]


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