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 …

Oct 3, 2024 · You can only quantify it with a full radiative transfer calculation and a model atmosphere. You can argue it from an order of magnitude that the lower levels of visible transitions in helium 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 …

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 …

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 …

Jan 23, 2020 · Generally speaking, green colours in a nebula are due to forbidden transitions in ionised Oxygen, though can feature the hydrogen $\beta$ Balmer line. Red colours can be due to Hydrogen …

Apr 14, 2024 · Now I understand the calibration requires the pixel position of the zeroth order (known) and a well-known feature (in this case the Balmer series) However, given the poor resolution. I am …