Sentences with phrase «oxygen emission lines»
The study presents the first measurements of the changing strengths of oxygen emission lines from the present day and back to 12.5 billion years ago.
https://www.sciencedaily.com/
A new study presents the first measurements of the changing strengths of oxygen emission lines from the present day and back to 12.5 billion years ago.
Not exact matches
«To do this,» explains Antonio Cabrera Lavers, head of astronomy at the GTC and one of the authors of the paper, «we have used for the first time the blue tunable filter of OSIRIS to take a deep image centred on the emission from the recombination lines of one of the oxygen ions in the planetary nebula 6778.»
To try to corroborate this theory, an image of the emission of a planetary nebula in the recombination lines of oxygen has been obtained with the GTC.
The light we received from the galaxy in the distant Universe tells us - from hydrogen, oxygen, and neon emission lines - that they followed a different rule to produce the heavy elements.
Spectra of some very hot and bluish stars exhibit marked emission lines from carbon or nitrogen, or sometimes oxygen.
Instead their spectra are dominated by broad emission lines of highly ionized helium, nitrogen, carbon and sometimes oxygen.
Rob — I'm not sure why you think the human origin of post-industrial CO2 increases is a subject of much uncertainty, since the conclusion resides in the convergence of multiple lines of evidence that include measurements of C14, C13, C12, atmospheric oxygen, volcanic activity, and records of industrial emissions.