activity
20102026
most citedPolarized x-rays constrain the disk-jet geometry in the black hole x-ray binary Cygnus X-1

173 citations · 2.6k across the 120 of their papers we have counts for

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6 papers · 1 filter

astro-ph.IM2026

In-orbit Demonstration of X-ray Pulsar Navigation with NinjaSat

Naoyuki Ota, Takuya Takahashi, Toru Tamagawa +26

This study demonstrated the pulsar navigation capability of the CubeSat X-ray observatory NinjaSat, which is equipped with two Gas Multiplier Counters (GMCs). The GMCs are sensitiv…

astro-ph.IM2024★ 7 cited

NinjaSat: Astronomical X-ray CubeSat Observatory

Toru Tamagawa, Teruaki Enoto, Takao Kitaguchi +22

NinjaSat is an X-ray CubeSat designed for agile, long-term continuous observations of bright X-ray sources, with the size of 6U ( mm) and a mass of 8 kg.…

astro-ph.IM2019

The X-ray Polarization Probe mission concept

Keith Jahoda, Henric Krawczynski, Fabian Kislat +100

The X-ray Polarization Probe (XPP) is a second generation X-ray polarimeter following up on the Imaging X-ray Polarimetry Explorer (IXPE). The XPP will offer true broadband polarim…

astro-ph.IM2019★ 22 cited

A convolutional neural network approach for reconstructing polarization information of photoelectric X-ray polarimeters

Takao Kitaguchi, Kevin Black, Teruaki Enoto +6

This paper presents a data processing algorithm with machine learning for polarization extraction and event selection applied to photoelectron track images taken with X-ray polarim…

astro-ph.IM2011★ 16 cited

Improvements in calibration of GSO scintillators in the Suzaku Hard X-ray Detector

Shin'ya Yamada, Kazuo Makishima, Kazuhiro Nakazawa +27

Improvements of in-orbit calibration of GSO scintillators in the Hard X-ray Detector on board Suzaku are reported. To resolve an apparent change of the energy scale of GSO which ap…

astro-ph.IM2010★ 4 cited

WIDGET: System Performance and GRB Prompt Optical Observations

Yuji Urata, Makoto S. Tashiro, Toru Tamagawa +11

The WIDeField telescope for Gamma-ray burst Early Timing (WIDGET) is used for a fully automated, ultra-wide-field survey aimed at detecting the prompt optical emission associated w…