Sentences with phrase «time delay measurements»

Although this measurement was first proposed in the 1960's, it has never been made because only two strongly lensed supernovae have been discovered to date, neither of which were amenable to time delay measurements,» says Danny Goldstein, a UC Berkeley graduate student and lead author on the new Astrophysical Journal paper.

«It can take years to get a time delay measurement with quasars, but this work shows we can do it for supernovae in months.

Not exact matches

By tracking time - delay between the strongly lensed images, astrophysicists believe they can get a very precise measurement of the cosmic expansion rate.

Nevertheless, the measurement was exceptional, because it was the first observation of its kind in light nuclei,» concludes Prof. Fornal and stresses that the measured delay times of return to the basic state correspond to an acceptable extent with the values provided by the new theoretical model, which further enhances the attainment of the achievement.

By adjusting the time delay between the two pulses, the scientists gained a very precise measurement — within a matter of attoseconds — of how long it takes the electron to decay.

Re # 33 (Dave D.): Ice core measurement issues aside, remember that there has to be some degree of lag because a) the initial warming is from Milankovitch changes, not CO2, and 2) the delayed turnover of ocean water means that not all the CO2 will outgas in a short period of time.

An examination of the data from: i) measurements of the fractionation of CO2 by way of Carbon - 12 and Carbon - 13 isotopes; ii) the seasonal variations of the concentration of CO2 in the Northern Hemisphere; and iii) the time delay between Northern and Southern Hemisphere variations in CO2, raises questions about the conventional explanation of the source of increased atmospheric CO2.

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