WITH the continuous spectrum described by Lyman (Astrophysical Jour., 60, 1) as a background, and with hydrogen flowing through the receiver of the spectrograph, it was found possible to ...

Some of these lines coincide closely with lines of the series observed by Pickering in the spectrum of the star ς Puppis, and attributed to hydrogen in consequence of its simple numerical ...

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 ...