NEAR the normal positions of the diffuse series lines of both par- and ortho-helium, one finds very broad absorption lines in the spectrum of many B-type stars. The symmetry of each structure is ...

An international team led by QUT researchers continues to challenge a long-held assumption in photochemistry with potential ...

Common elements like helium and calcium in the atmospheres of stars block certain colors of light, creating "absorption lines." These gaps in the otherwise smooth spectra from stars serve as ...

WITH the continuous spectrum described by Lyman (Astrophysical Jour., 60, 1) as a background, and with hydrogen flowing through the receiver of the spectrograph, it was found possible to ...

The measurement of the energy spectrum of cosmic ray helium nuclei from 70 GeV to 80 TeV using 4.5 years of data recorded by the DArk Matter Particle Explorer (DAMPE) is reported in this work. A ...