What makes it so strange are its spectra, which showed a large spike in Lyman-alpha, or the hydrogen emission line. While ...

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 ...

residual hydrogen may be represented only by the new lines? This would not be the only known case in which the presence of helium aids the development of the spectrum of another gas with which it ...

Each of the spectra has a set of absorption lines created by the presence of hydrogen in the stars' atmospheres. Order the spectra, starting with the one that is moving the fastest toward us and ...

However, it has been reported that the CR model approach leads to deviations in helium–hydrogen ... more complex spectral shapes, the spectroscopy data were used directly for training instead of ...

"Now, thanks to improved hydrogen sulphide absorption-line data and the wonderful Gemini spectra, we have the fingerprint which caught the culprit," said co-author Patrick Irwin, from the ...