A new study has found a few odd surprises about the first molecule in the universe, suggesting our models of the early cosmos ...

Electron degradation and subexcitation spectra have been computed for helium gas containing a source of electron with initial energy of 1.99, 10, or 30 keV. The yield of primary ionizations was also ...

More information: Xunchuan Liu et al, First detection of radio recombination lines of ions heavier than helium, Astronomy & Astrophysics (2023). DOI: 10.1051/0004-6361/202345904 ...

Jul 24, 2023 Spin defects in hexagonal boron nitride created by helium ion bombardment (Nanowerk News) National University of Singapore (NUS) physicists have developed a method using a focused beam of ...

Indeed, both helium and hydrogen atmospheres could fit the data if the emission was dominated by a hot-spot about a quarter of the area of the entire neutron star surface.

Feynman has recently advanced physical arguments to deduce an approximate form for the wave function of an elementary excitation in helium. Qualitatively, his theory leads to an excitation spectrum ...

Throughout the mid-1800s, improvements on the spectroscope allowed physicists to more accurately measure the wavelengths of light and identify new elements—like helium. Wikimedia Commons “I ...