Ly$α$ emission
like the cry for help, a wind blows through
Technical definition
The emission of light at a wavelength of 121.6 nm (Lyman alpha), often used as a indicator of the presence of gas in distant galaxies.
like the cry for help, a wind blows through
The emission of light at a wavelength of 121.6 nm (Lyman alpha), often used as a indicator of the presence of gas in distant galaxies.