Astronomers from the University of Turku in Finland and elsewhere have performed a broadband spectral and timing study of an ...

Collaboration has obtained a high-precision cosmic-ray boron spectrum in the energy range of 10 GeV/n–8 TeV/n, and discovered ...

NASA's Chandra X-ray Observatory provides a new look at the Andromeda galaxy in this multi-wavelength image that includes ...

We report measurements of the valence band width in compressed Ge determined from x-ray emission spectra below the Ge K edge. The width of the valence band does not show any pressure dependence in the ...

The RIXS spectra are typically represented as a combination of X-ray emission and absorption, creating a two-dimensional (2D) RIXS plane based on emission and excitation energies. 2 ...

Researchers have observed the X-ray emission of the most luminous quasar seen in the last 9 billion years of cosmic history, known as SMSS J114447.77-430859.3, or J1144 for short. The new ...

Observations of the burst span the spectrum, from radio waves to gamma rays, and include data from many NASA and partner missions, including the NICER X-ray telescope on the International Space ...

When analysing an x-ray spectrum, in addition to comparing the energy of the emission lines, the intensity ratios of the characteristic lines are also compared. To deduce the properties of the cosmic ...