Accurate Polarization Calibration at 800 MHz with the Green Bank Telescope

Kavli Affiliate: Kiyoshi Wesley Masui | First 5 Authors: Yu-Wei Liao, Tzu-Ching Chang, Cheng-Yu Kuo, Kiyoshi Wesley Masui, Niels Oppermann | Summary: Polarization leakage of foreground synchrotron emission is a critical issue in HI intensity mapping experiments. While the sought-after HI emission is unpolarized, polarized foregrounds such as Galactic and extragalactic synchrotron radiation, if coupled […]


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Systematic Study of Gamma-ray bright Blazars with Optical Polarization and Gamma-ray Variability

Kavli Affiliate: Grzegorz M. Madejski | First 5 Authors: Ryosuke Itoh, Krzysztof Nalewajko, Yasushi Fukazawa, Makoto Uemura, Yasuyuki T. Tanaka | Summary: Blazars are highly variable active galactic nuclei which emit radiation at all wavelengths from radio to gamma-rays. Polarized radiation from blazars is one key piece of evidence for synchrotron radiation at low energies […]


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Constraint on the inflow/outflow rates in star-forming galaxies at z~1.4 from molecular gas observations

Kavli Affiliate: Naoyuki Tamura | First 5 Authors: Akifumi Seko, Kouji Ohta, Kiyoto Yabe, Bunyo Hatsukade, Masayuki Akiyama | Summary: We constrain the rate of gas inflow into and outflow from a main-sequence star-forming galaxy at z~1.4 by fitting a simple analytic model for the chemical evolution in a galaxy to the observational data of […]


Continue.. Constraint on the inflow/outflow rates in star-forming galaxies at z~1.4 from molecular gas observations

Constraint on the inflow/outflow rates in star-forming galaxies at z~1.4 from molecular gas observations

Kavli Affiliate: Naoyuki Tamura | First 5 Authors: Akifumi Seko, Kouji Ohta, Kiyoto Yabe, Bunyo Hatsukade, Masayuki Akiyama | Summary: We constrain the rate of gas inflow into and outflow from a main-sequence star-forming galaxy at z~1.4 by fitting a simple analytic model for the chemical evolution in a galaxy to the observational data of […]


Continue.. Constraint on the inflow/outflow rates in star-forming galaxies at z~1.4 from molecular gas observations

Status and performance of the Gemini Planet Imager adaptive optics system

Kavli Affiliate: Bruce A. Macintosh | First 5 Authors: Vanessa P. Bailey, Lisa A. Poyneer, Bruce A. Macintosh, Dmitry Savransky, Jason J. Wang | Summary: The Gemini Planet Imager is a high-contrast near-infrared instrument specifically designed to image exoplanets and circumstellar disks over a narrow field of view. We use science data and AO telemetry […]


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Dark Sectors 2016 Workshop: Community Report

Kavli Affiliate: Daniel Akerib | First 5 Authors: Jim Alexander, Marco Battaglieri, Bertrand Echenard, Rouven Essig, Matthew Graham | Summary: This report, based on the Dark Sectors workshop at SLAC in April 2016, summarizes the scientific importance of searches for dark sector dark matter and forces at masses beneath the weak-scale, the status of this […]


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Light yield of an undoped CsI crystal coupled directly to a photomultiplier tube at 77 Kelvin

Kavli Affiliate: Masaki Yamashita | First 5 Authors: Jing Liu, Masaki Yamashita, Arun Kumar Soma, , | Summary: A light yield of 20.4 $pm$ 0.8 photoelectrons/keV was achieved with an undoped CsI crystal coupled directly to a photomultiplier tube at 77 Kelvin. This is by far the largest yield in the world achieved with CsI […]


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Plasma heating inside ICMEs by Alfvenic fluctuations dissipation

Kavli Affiliate: John W. Belcher | First 5 Authors: Hui Li, Chi Wang, Jiansen He, Lingqian Zhang, John D. Richardson | Summary: Nonlinear cascade of low-frequency Alfvenic fluctuations (AFs) is regarded as one candidate of the energy sources to heat plasma during the non-adiabatic expansion of interplanetary coronal mass ejections (ICMEs). However, AFs inside ICMEs […]


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Mn-doping induced ferromagnetism and enhanced superconductivity in Bi_4-x Mn_x O_4 S_3 (0.075 < = x < = 0.15)

Kavli Affiliate: N. C. Yeh | First 5 Authors: Zhenjie Feng, Xunqing Yin, Yiming Cao, Xianglian Peng, Tian Gao | Summary: We demonstrate that Mn-doping in the layered sulfides Bi_4O_4S_3 leads to stable Bi_4-x Mn_x O_4 S_3 compounds that exhibit both long-range ferromagnetism and enhanced superconductivity for 0.075 < = x < = 0.15, with […]


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Visible camera cryostat design and performance for the SuMIRe Prime Focus Spectrograph (PFS)

Kavli Affiliate: Naoyuki Tamura | First 5 Authors: Stephen A. Smee, James E. Gunn, Mirek Golebiowski, Stephen C. Hope, Fabrice Madec | Summary: We describe the design and performance of the SuMIRe Prime Focus Spectrograph (PFS) visible camera cryostats. SuMIRe PFS is a massively multi-plexed ground-based spectrograph consisting of four identical spectrograph modules, each receiving […]


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