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42 papers · 1 filter
The Extreme Space Weather Event of 1872 February: Sunspots, Magnetic Disturbance, and Auroral Displays
Hisashi Hayakawa, Edward W. Cliver, Frédéric Clette +19
We review observations of solar activity, geomagnetic variation, and auroral visibility for the extreme geomagnetic storm on 1872 February 4. The extreme storm (referred to here as…
Neural Power-Optimal Magnetorquer Solution for Multi-Agent Formation and Attitude Control
Yuta Takahashi, Shin-ichiro Sakai
This paper presents a learning-based current calculation model to achieve power-optimal magnetic-field interaction for multi-agent formation and attitude control. In aerospace engi…
A GMRT 610 MHz radio survey of the North Ecliptic Pole (NEP, ADF-N) / Euclid Deep Field North
Glenn J. White, L. Barrufet, S. Serjeant +17
This paper presents a 610 MHz radio survey covering 1.94 square degrees around the North Ecliptic Pole (NEP), which includes parts of the AKARI (ADF-N) and Euclid, Deep Fields Nort…
Development of a bunching ionizer for TOF mass spectrometers with reduced resources
Oya Kawashima, Satoshi Kasahara, Yoshifumi Saito +3
In some types of mass spectrometers, such as Time of Flight mass spectrometers (TOF-MSs), it is necessary to control pulsed beams of ions. This can be easily accomplished by applyi…
New Insights with XRISM & Cloudy: A novel Column Density Diagnostic
Chamani M. Gunasekera, Peter A. M. van Hoof, Masahiro Tsujimoto +1
We present a simple, yet powerful column density diagnostic for plasmas enabled by X-ray microcalorimeter observations. With the recent developments of the spectral simulation code…
The Microlensing Event Rate and Optical Depth from MOA-II 9 year Survey toward the Galactic Bulge
Kansuke Nunota, Takahiro Sumi, Naoki Koshimoto +23
We present measurements of the microlensing optical depth and event rate toward the Galactic bulge using the dataset from the 2006--2014 MOA-II survey, which covers 22 bulge fields…