Sentence examples for by using absorption lines from inspiring English sources

Attempts to measure the gravitational redshift by using absorption lines in the solar spectrum led to contradictory and inconclusive results, but in 1925 American astronomer Walter Adams, at Mount Wilson Observatory, announced that he had determined the gravitational redshift of Sirius B, the white dwarf companion of Sirius.

I will describe a set of recent projects that examine reionization by using quasar absorption lines to probe the IGM at the highest observable redshifts.

This method will increase further complications and costs, and could be circumvented by improvements in the area of stabilisation by using atomic absorption lines, which today are close to reaching comparable relative accuracies [23].

The average strength of the magnetic field on the surface of these stars, by using the absorption line of Ca II at λ 8,542 Å, are estimated to be 1 to 20 G which is comparable to or 1 order of magnitude higher than that of the Sun (approximately 2 G).

By using laser lines of 325 nm and 441 nm, the light absorption in the passive film on iron becomes accessible by measuring the difference in the reflectance of the electrode surface prior to and after passivation.

Outline the ears by using curve lines.

Lead in blood was determined by using atomic absorption spectrometry.

Inserts A and B show the integrated intensities of the absorption and an example of 2-line curve-fitted infrared spectrum by using Gaussian line shape.

Zinc content was determined by using atomic absorption spectrometer.

Cu, Mn, Fe, Se and Zn serum levels were by using atomic absorption spectrophotometer.

Left-hand-side panels show water vapour profiles retrieved using faint H2O absorption lines separately in diffraction orders 180 and 182.