Sentences with phrase «which spectral lines»

If the atoms are excited, they emit these same wavelengths, hence one can determine precisely which spectral lines belong to which element.

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.

Owen's team found many spectral lines due to methane, which is easier to detect than nitrogen.

Most light from meteors comes from spectral lines emitted by the elements they contain, so the impacts may be easiest to see though filters which isolate those lines.

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

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

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

These studies which are based on spectral line observations of molecular gas suggest a new method of potentially discovering inactive isolated black holes that are undetected by traditional method such as X-ray observations.

An interesting result from this data was that no emission was detected in the Stokes I spectral line profiles during the flare, which is traditionally seen in such magnetic transient regions.

[16] This two - dimensional (temperature and luminosity) classification scheme is based on spectral lines sensitive to stellar temperature and surface gravity, which is related to luminosity (whilst the Harvard classification is based on just surface temperature).

G - type stars, including the Sun [11] have prominent spectral lines H and K of Ca II, which are most pronounced at G2.

We characterize the main emission lines found in the spectrum, which primarily arise from a range of components associated with Orion KL including the hot core, but... ▽ More We present the first high spectral resolution observations of Orion KL in the frequency ranges 1573.4 - 1702.8 GHz (band 6b) and 1788.4 - 1906.8 GHz (band 7b) obtained using the HIFI instrument on board the Herschel Space Observatory.

The Heraclitean flux of the series, which surrounds the viewer in bold color, captures the spectral range of hues seen in the waters of Burano, an island in the Venetian lagoon lined with houses in bright gold, red, blue and white.

@Vaughn https://judithcurry.com/2012/12/04/multidecadal-climate-to-within-a-millikelvin/#comment - We know quantitatively, albeit roughly, from the work of Tyndall in the 1850s the extent to which CO2 itself... blocks the passage of thermal radiation; these days we infer this much more precisely from the HITRAN tables of spectral absorption / emission lines.

We know quantitatively, albeit roughly, from the work of Tyndall in the 1850s the extent to which CO2 itself, with no feedbacks, blocks the passage of thermal radiation; these days we infer this much more precisely from the HITRAN tables of spectral absorption / emission lines.

If one were to take the model and plot a curve of emission versus wavelength rather than simply summing up the values (integrating over wavelength), it would show a spectral curve of a black body at 288.2 k with the absorption lines of the atmosphere dipping down to the point where there is a spectral curve for a lower temperature at which there is emission going on in the wavelength bands associated with ghg absorption.

Empirical evidence using spectroscopy proves that a gas does not absorb spontaneous emission from a body which is significantly cooler than it, but it does absorb (and spectral lines thus appear) when the same body is made warmer than the gas.

No need to build up a narrative that relies on the IR line spectral properties of CO2 which compose 0.03 % of the atmosphere in the so called greenhouse effect.