An Integrated System at the Bleien Observatory for Mapping the Galaxy

Kavli Affiliate: Chihway Chang | First 5 Authors: Chihway Chang, Christian Monstein, Joel Akeret, Sebastian Seehars, Alexandre Refregier | Summary: We describe the design and performance of the hardware system at the Bleien Observatory. The system is designed to deliver a map of the Galaxy for studying the foreground contamination of low-redshift (z=0.13–0.43) H$_{rm I}$ […]


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Hitomi constraints on the 3.5 keV line in the Perseus galaxy cluster

Kavli Affiliate: Grzegorz M. Madejski | First 5 Authors: Hitomi Collaboration, Felix A. Aharonian, Hiroki Akamatsu, Fumie Akimoto, Steven W. Allen | Summary: High-resolution X-ray spectroscopy with Hitomi was expected to resolve the origin of the faint unidentified E=3.5 keV emission line reported in several low-resolution studies of various massive systems, such as galaxies and […]


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Repetitive Patterns in Rapid Optical Variations in the Nearby Black-hole Binary V404 Cygni

Kavli Affiliate: Stuart L. Marshall | First 5 Authors: Mariko Kimura, Keisuke Isogai, Taichi Kato, Yoshihiro Ueda, Satoshi Nakahira | Summary: How black holes accrete surrounding matter is a fundamental, yet unsolved question in astrophysics. It is generally believed that matter is absorbed into black holes via accretion disks, the state of which depends primarily […]


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Ground Testing and Flight Demonstration of Charge Management of Insulated Test Masses Using UV LED Electron Photoemission

Kavli Affiliate: Robert Byer | First 5 Authors: Shailendhar Saraf, Sasha Buchman, Karthik Balakrishnan, Chin Yang Lui, Michael Soulage | Summary: The UV LED mission demonstrates the precise control of the potential of electrically isolated test masses that is essential for the operation of space accelerometers and drag free sensors. Accelerometers and drag free sensors […]


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A Modular Data Acquisition System using the 10 GSa/s PSEC4 Waveform Recording Chip

Kavli Affiliate: Eric Oberla | First 5 Authors: M. Bogdan, E. Oberla, H. J. Frisch, M. Wetstein, | Summary: We describe a modular multi-channel data acquisition system based on the 5-15 Gigasample-per-second waveform-recording PSEC4 chip. The system architecture incorporates two levels of hardware with FPGA-embedded system control and in-line data processing. The front-end unit is […]


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