Takao Kitaguchi

TL;DR: The Nuclear Spectroscopic Telescope Array (NuSTAR) as discussed by the authors is the first focusing high-energy X-ray telescope in orbit, which operates in the band from 3 to 79 keV.

TL;DR: The Nuclear Spectroscopic Telescope Array (NuSTAR) as discussed by the authors is the first focusing high-energy X-ray telescope in orbit, which operates in the band from 3 - 79 keV.

TL;DR: X-ray observations of the core of the Perseus cluster reveal a remarkably quiescent atmosphere in which the gas has a line-of-sight velocity dispersion of 164 ± 10 kilometres per second in the region 30–60 kiloparsecs from the central nucleus, infering that a total cluster mass determined from hydrostatic equilibrium in a central region would require little correction for turbulent pressure.

TL;DR: In this article, a piece-wise linear spline function was proposed to modify the vignetting response of the nuclear Spectroscopic Telescope Array (NuSTAR) X-ray satellite.

TL;DR: In this paper, a piece-wise linear spline function was used to modify the vignetting response of the Crab as the primary effective area calibrator, and the achieved residuals for all off-axis angles and energies, compared to the assumed spectrum, are typically better than 2$\% up to 40\,keV and 5--10\,\% above due to limited counting statistics.