118, No. 842, April 2006 Ca ii H and K Chromospheric Emission Lin... ABSTRACT We have measured the profiles of the Ca ii H and K chromospheric emission lines in 147 main‐sequence stars of spectral ...

Hot gases don’t produce a continuous emission spectrum. Black hydrogen absorption lines are at the same wavelength as the bright hydrogen emission lines. Key fact Line emission spectra are ...

This causes line emission spectra to be produced, as shown below. This is not a continuous spectrum as only light of specific frequencies and specific colours are produced. Different types of ...

Alluxa introduces two Hydrogen Alpha (H-Alpha) Emission Line Filters that are revolutionizing the ultra-narrow optical filters market. Though these new filters have been specifically tailored to ...

Recent studies have made significant advancements in the understanding of X-ray emission spectra, particularly focusing on the Kα and Kβ lines of elements like copper and scandium. For instance ...

A new report by Forbes reveals that Disney Cruise Line accidentally overstated their emissions by 30+ times for two years.