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Origin of the X-ray Broad Iron Spectral Feature in GRS 1915+105
Misaki Mizumoto, Ken Ebisawa, Masahiro Tsujimoto +1
The X-ray spectrum of GRS 1915+105 is known to have a ``broad iron spectral feature'' in the spectral hard state. Similar spectral features are often observed in Active Galactic Nu…
Variability of the X-ray Broad Iron Spectral Features in Active Galactic Nuclei and Black-hole Binaries
Misaki Mizumoto, Ken Ebisawa, Masahiro Tsujimoto +1
The "broad iron spectral features" are often seen in X-ray spectra of Active Galactic Nuclei (AGN) and black-hole binaries (BHB). These features may be explained either by the "rel…
A Warm Near-Infrared High-Resolution Spectrograph with Very High Throughput (WINERED)
Sohei Kondo, Yuji Ikeda, Naoto Kobayashi +15
WINERED is a newly built high-efficiency (throughput) and high-resolution spectrograph customized for short NIR bands at 0.9-1.35 m. WINERED is equipped with a…