Sentences with phrase «using emission spectra»

Not exact matches

Using the Very Large Telescope UV - Visual Echelle Spectrograph, the researchers obtained a spectrum of the star's light and looked for emissions from ionized iron, similar to those from the sun.

The latter is aimed for use in the infrared emission spectrum.

Use fluorophores with a narrow emission spectrum in multi-color IF experiments to avoid spectral overlap

Some, however, use a network of antennas to collect radio emissions (energy from a different portion of the electromagnetic spectrum).

MUSTANG - 2 sensitively maps broad - spectrum emission on the sky in the 70 to 105 GHz range using 210 individual bolometric detectors, each coupled to the sky with its own feed horn.

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 highest purity searches to date have made use of relatively clean signals such as the presence of emission or absorption features at two distinct redshifts in the same optical spectrum (e.g. Bolton et al. 2004), or the strong «magnification bias» towards detecting strongly lensed sources in the sub - mm / mm waveband (e.g. Negrello et al. 2010).

Here, f (λex) is the absorption factor at the excitation wavelength λex, F the integral emission intensity, i.e., the area under the blank and spectrally corrected emission spectrum on a wavelength scale, and n the refractive index of the solvent (s) used.

Amrose v0 — v4 variants, as well as HcRed, mCherry and mPlum, visualized in zebrafish 24 hours after 100 ng / µl mRNA injection using 633 nm excitation and scanning the emission spectrum.

Has anyone actually done any «real» laboratory experiments with CO2 mixtures, using a real 288 Kelvin thermal radiation source that is putting out a 10.1 micron peak wavelength emission spectrum at about 390 W / m ^ 2.

Lots of black body curves but not used to thinking about emission spectrum for a gas.

Thawing permafrost also delivers organic - rich soils to lake bottoms, where decomposition in the absence of oxygen releases additional methane.116 Extensive wildfires also release carbon that contributes to climate warming.107, 117,118 The capacity of the Yukon River Basin in Alaska and adjacent Canada to store carbon has been substantially weakened since the 1960s by the combination of warming and thawing of permafrost and by increased wildfire.119 Expansion of tall shrubs and trees into tundra makes the surface darker and rougher, increasing absorption of the sun's energy and further contributing to warming.120 This warming is likely stronger than the potential cooling effects of increased carbon dioxide uptake associated with tree and shrub expansion.121 The shorter snow - covered seasons in Alaska further increase energy absorption by the land surface, an effect only slightly offset by the reduced energy absorption of highly reflective post-fire snow - covered landscapes.121 This spectrum of changes in Alaskan and other high - latitude terrestrial ecosystems jeopardizes efforts by society to use ecosystem carbon management to offset fossil fuel emissions.94, 95,96

Emissivities were evaluated experimentally based on direct measurement of total emission for a number of gases including CO2 and water vapour; these gases absorbed in certain regions of the IR spectrum and this was the data which was used.

(I'm guessing whoever wrote the text in the broadening sections is more used to thinking about emission spectra, and so got lazy and kept referring only to emission.)

You won't detect any IR bandwidths that don't show up in the absorption / emission spectrum using an IR spectrometer.