Sentences with phrase «spectral lines of»

It may look complex, just as the spectral lines of a gas looked complex before the 20th century cleared up that structure.

Has anyone looked for one with the diligence that early 20th century physicists looked for an explanation of the spectral lines of gases?

Woldemar Götz mentions this cluster as containing one peculiar Of star, an extremely hot bright star of spectral type O with peculiar spectral lines of ionized Helium and Nitrogen.

It was mainly designed to operate at a wavelength of 21 centimetres, which corresponds to one of the spectral lines of hydrogen.

The antennas would operate at a wavelength of 21 centimetres, which corresponds to one of the spectral lines of hydrogen.

[94] Proxima Centauri b was found using the radial velocity method, where periodic Doppler shifts of spectral lines of the host star suggest an orbiting object.

Precise measurements of the motion of the gas using the Doppler shift in the spectral lines of the gas components revealed that 100 AU corresponds to the radius of the centrifugal barrier.

Mills also says hydrinos are created from burning hydrogen in stars such as our sun and are evident in the spectral lines of starlight.

Indeed, its Lyman - alpha spectrum, i.e. one of the spectral lines of hydrogen it emits, is much narrower and stronger than that of most galaxies, therefore confirming her theoretical predictions.

The object studied here has a redshift of z = 5.913, i.e., the Lyman - alpha spectral line of hydrogen at 1216 angstrom (Å) at the rest frame is detected at 8406 Å, when the Universe was about one billion years old.

It has clearly been identified with the spectral line of cycle - C5H2.

Hence, the spectral line of SO also highlights the disk - formation front.

An international advisory committee for the definition of the meter has now recommended the adoption of an atomic standard of length — an orange spectral line of krypton 86.

Not exact matches

Led by Canadian researchers under what's called the ALPHA Collaboration, the first detailed observation of «home made» anti-hydrogen's structure has shown its spectral lines are virtually identical to those of hydrogen.

For the first time, researchers have found a way to capture fine details of antihydrogen's spectral lines and show they are in fact identical to hydrogen.

HHXRF technology now allows you to conduct spectral fingerprints of your production line to determine the source of the metal contamination for quick action and repair.

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.

Later that year, English astronomer Joseph Lockyer observed the same spectral line, wrote a paper and also sent it to the French Academy of Sciences.

The metallicity of the gases in the protocluster galaxies was studied using multiple spectral lines emitted from them.

The team did not apply the proper statistical methods to rule out random fluctuations in the x-rays that can mimic spectral lines, says astrophysicist Masao Sako of the California Institute of Technology (Caltech) in Pasadena.

Based on the wavelengths of spectral lines emitted by the luminous gas surrounding the black hole, the object is traveling at a speed of about 7.5 million kilometers per hour — a rate that would carry it from Earth to the moon in about 3 minutes.

In a valley in Idaho, a French team will analyse spectral lines in the corona, in part to support the infrared work of the CfA team, says Serge Koutchmy, an astronomer at the Institute of Astrophysics in Paris.

As astronomers report online today in Nature, the Herschel Space Observatory has discerned a watery spectral line at the far - infrared wavelength of 538 microns.

But Kusenko says the observation will be difficult to interpret: «The problem is to distinguish this [spectral] line from all sorts of ordinary lines produced by gas in the cluster.»

This velocity can be obtained from the width of the supernova's spectral lines: the wider the lines, the greater the velocity.

«Each device is engineered to generate a mid-infrared spectrum of comblike optical lines with tailored spectral shape, bandwidth, and optical power distribution,» Nader said.

In a breakthrough, a group of researchers at the National Institute of Standards and Technology developed an on - silicon - chip laser source with outputs that consist of precisely defined and equally spaced optical lines within the mid-infrared spectral region.

ALMA creates both a visual picture and a spectrum for every pixel of its images, producing tens of thousands of spectral lines in every field of view it observes.

The amount of redshift (z) is determined by the apparent wavelength of the spectral lines from this object by (1 + z) longer than that of the rest frame wavelength (i.e., when it is static object with respect to the observer).

This effect is described by General Relativity Theory as the gravitational red shift — it is detectable in spectral lines that shift toward the red end of the spectrum.

Yet so far, star formation historians have mostly relied on other indicators to write their histories: light at a particular frequency that is typically emitted when giant clouds collapse, heating up in the process and radiating away that heat in the form of specific spectral lines.

In the past decade, as powerful new telescopes capable of observing faint spectral lines have come online, the search for alien molecules has accelerated.

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.

That was consistent with a quasar, but dust blocked the definitive quasar signature of spectral lines emitted by gas near the black hole.

In their paper published in Nature the physicists from the University's College of Science, working with an international collaborative team at CERN, describe the first observation of spectral line shapes in antihydrogen, the antimatter equivalent of hydrogen.

They detected a spectral line emitted by neutral helium gas at a wavelength of 1083 nanometres.

The challenge for astronomers is to identify that fingerprint among the forest of spectral lines from all the other chemicals in the cloud.

«A lot of [spectral] lines were detected, which gives confidence that it's real.

The scientists were thus able to transfer the genetic information from the known fluorescent protein eqFP615 into the DT40 chicken B cell line in order to produce protein variants of the new infrared marker Amrose with different spectral properties.

The new discoveries were made with the help of the radial velocity method, which looks for the periodic shifts of certain spectral lines in a star's light that are caused by the gravitational tug of invisible planets which orbit the star.

The topics covered by the lectures / tutorials will include: Calibration and imaging of continuum, spectral line, and polarisation data; Low - freq.

The fourth line of the display shows the star's spectral type.

Redshift of the spectral lines in the light from a galaxy reflects its velocity relative to our galaxy.

This is due to the fact that most visual light is emitted in one spectral line, the green 5007 Angstrom forbidden line of doubly ionized oxygen, [O III](see our Planetary Nebulae page).

Near - IR spectroscopy shows a spectral type of L7 and reveals a triangular H - band continuum and weak alkali (K I and Na I) lines, hallmarks of low surface gravity.

Measurements taken by a team of astronomers from the Universities of Geneva and Bern are given in the framework of the PlanetS NCCR; the figures come from observations made over sodium spectral lines.

Capella Ab is a yellow - orange giant star of spectral and luminosity type G1 III, with rotationally broadened spectral lines.

Spectrometer (Spectrophotometer, Spectrograph, or Spectroscope): An instrument used to analyze the properties of light such as the light intensity, polarization, wavelength, spectral lines, etc..

When hydrogen gas is heated by the ultraviolet emissions of new stars, it produces a spectral signature called the Lyman - alpha line.