Jan 30, 2023 · To quote Wikipedia: Balmer Jump is caused by electrons being completely ionized directly from the second energy level of a hydrogen atom (bound-free absorption), which creates a …

Variations from the theoretical values above are often used as a tracer of dust extinction, since the bluer Balmer lines are much more affected by extinction than H $\alpha$.

From Wikipedia, Balmer lines are usually emission lines in the spectra of spiral and irregular galaxies probably due to the presence of type A stars. If ellipticals lack hot (O, B and A type?) stars, and are …

Feb 11, 2023 · I was wondering if someone could detail how the Balmer break region is used to determine galaxy mass estimates (and perhaps the dependence on redshift i.e. what redshifts is this …

Oct 3, 2024 · You can argue it from an order of magnitude that the lower levels of visible transitions in helium are about 20 eV above the ground state, compared with 10.2 eV for the hydrogen Balmer …

Mar 22, 2023 · I have the 2D data (shape(1125,2058) taken by a long slit spectrograph, which looks as follows: The y-axis corresponds to the distance from the center, where the center is at the most …

Apr 8, 2024 · Structures that are seen in emission off the photospheric limb of the Sun - know as prominences - are emitting a lot of light at the specific wavelength of the Balmer H $\alpha$ line at …

Jul 19, 2017 · There may be small amounts of Paschen and Balmer emission from the cloud via recombination. Thus what you basically see is the spectrum of the star and since you aren't told what …

Oct 30, 2025 · Magnetic activity also cause chromospheric emission superimposed on the photospheric emission. You are correct that this is prominent only for certain species, including ionised calcium in …

May 31, 2021 · Neutral Hydrogen exhibits a Balmer series which is a transition of the electron from a higher energy level down to the n=2 energy level. The n=3 to n=2 transition, otherwise known as Ba …