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X-ray and Optical Observations of the Black Hole Candidate MAXI J1828-249
Sonoe Oda, Megumi Shidatsu, Satoshi Nakahira +8
We report results from X-ray and optical observations of the Galactic black hole candidate MAXI J1828-249, performed with Suzaku and the Kanata telescope around the X-ray flux peak…
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…
A Space-based All-sky MeV gamma-ray Survey with the Electron Tracking Compton Camera
Kenji Hamaguchi, Toru Tanimori, Atsushi Takada +8
A sensitive survey of the MeV gamma-ray sky is needed to understand important astrophysical problems such as gamma-ray bursts in the early universe, progenitors of Type Ia supernov…
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…
Astro2020 Science White Paper: Using X-Ray Polarimetry to Probe the Physics of Black Holes and Neutron Stars
Henric Krawczynski, Giorgio Matt, Adam R. Ingram +54
This white paper highlights compact object and fundamental physics science opportunities afforded by high-throughput broadband (0.1-60 keV) X-ray polarization observations. X-ray p…
An enigmatic hump around 30 keV in Suzaku spectra of Aquila X-1 in the Hard State
Megu Kubota, Toru Tamagawa, Kazuo Makishima +4
The typical accreting neutron star, Aquila X-1, was observed with Suzaku seven times in the decay phase of an outburst in 2007 September-October. Among them, the second to the four…