Sentences with phrase «measure spectral lines»
Shining a laser through the gas, TLS can measure spectral lines with far higher resolution than terrestrial telescopes and detect methane with much greater sensitivity.
http://www.sciencemag.org/ Not exact matches
Historically, the fractions (which we call the abundances) of the different atoms in the interstellar gas have been measured using the distinct spectral «footprint» of each ion in the spectrum, which is a characteristic set of spectral lines.
They plan to measure other spectral lines and even test the pull of gravity on antihydrogen — to see if it is pulled down or pushed up.
Working at the European particle physics laboratory, CERN, in Meyrin, Switzerland, they measured that «spectral line» to a precision of a few parts in 10 billion, as they report online today in Nature.
HARPS has been enormously successful at detecting exoplanets using the radial velocity method, or measuring the gravitational tugs on stars by their planets by watching the stars» spectral lines «wobble» back and forth due to the Doppler effect.