Publications of the Astronomical Society of the Pacific Vol. 112, No. 771, May 2000 Faint Emission Lines in the Blue and Red... Faint Emission Lines in the Blue and Red Spectral Regions of the Night ...

Key fact Line emission spectra are unique to a particular element. Different elements produce different line spectra. A line spectrum is like a fingerprint - it can be used to identify the element ...

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 ...

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 type M5–K7 ...

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 ...

Cosmic rays below 100 MeV are key to the origin of life and the evolution of stars, and they activate interstellar matter to emit spectral emission lines of X-rays and gamma rays specific to the ...

SINCE Moseley's discovery of the fundamental laws of the X-ray emission, it has become quite ... accurately the wave-lengths of the X-ray spectral lines for any element in the periodic table ...

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 ...

Adding a second laser line filter improves SMSR in the spectral area near the laser emission line, allowing for better measurement of low wavenumber Raman emission (e.g., < 100 cm-1). The first ...

The BLR, located near the SMBH, is a region of high-velocity ionized gas responsible for producing broad emission lines in the ultraviolet and optical AGN spectra. These lines, with widths ...