Sentences with phrase «at longer wavelengths»

Any energy that is taken up by these molecules at 15μ can ONLY re-emit at LONGER wavelengths — not shorter, higher energy wavelengths.

«Hotter objects emit most of their radiation at shorter wavelengths: hence they will appear to be bluer while cooler objects emit most of their radiation at longer wavelengths.»

The absorptivity / emissivity of surfaces may get more clearly less than one at the lower end of the LWIR region, i.e. around 4 - 5 um but that has very little influence on the energy radiated by Earth surface, because most of the energy is radiated at longer wavelengths anyway.

That would depend on they type of object VL strikes and how much VL is absorbed and then emitted at the longer wavelengths (IR), while at the same time negating (subtracting) the emissions from the object's absorption of original, incoming IR wavelengths.

Thus, among competing bands, there may be net radiative cooling in the upper atmosphere or near TOA at longer wavelengths and net heating and shorter wavelengths.

The equilibrium profile for each band varies over wavelength at the same optical thickness, with larger temperature variations at longer wavelengths.

Well, if we add atmospheric absorption to wavelengths just outside the first band, there could be initial cooling of lower levels and warming of upper levels as explained in 1b, which will be enhanced if this is added at shorter wavelengths (reduced if addeed at longer wavelengths) relative to where the initial atmopsheric absorption was (see 438).

As far as I know, if the only physical mechanism under consideration is the radiative cooling of the planet's surface (which was heated by shortwave solar radiation and reradiated at longer wavelengths in the infrared) via radiative transport, additional gas of any kind can only result in a higher equilibrium temperature.

We refer to that thermal radiation at longer wavelengths as «dusty emission» because it's coming from the dust.

These new images demonstrate ALMA's ability to study solar activity at longer wavelengths than observed with typical solar telescopes on Earth, and are an important expansion of the range of observations that can be used to probe the physics of our nearest star.

ALMA, in contrast, will probe the sky for radiation at longer wavelengths from a few hundred micrometres to about 1 mm.

She develops new molecules to induce acrylate polymerisation with light at longer wavelengths than the ultraviolet used now.

Only follow - up observations at longer wavelengths will allow us to distinguish between these two scenarios.

The «colours» are due to differences in the surface temperature of starsw1: hotter stars emit most of their light in the visible blue or ultraviolet regions of the electromagnetic spectrum, whereas cooler stars radiate at longer wavelengths, in the visible red or infrared regions (see Mignone & Barnes, 2011a).

The number of planets discovered at 500 nm (black curve) that could also be detected at longer wavelengths (colored curves), as desired for spectroscopic observations, as a function of telescope aperture size and for two different assumed inner working angles.

This might indicate that smaller (and warmer) dust grains are responsible for the 100 μm emission than at the longer wavelengths, in agreement with the theoretical predictions of van Marle et al. (2011).

OCO - 2 will also closely monitor the carbon uptake of plants by measuring the weak fluorescence that is produced during photosynthesis as plants» chlorophyll pigments absorb light to capture energy and subsequently re-emit photons at longer wavelengths.

They can be detected because the dust absorbs the light from stars and reemits it at longer wavelengths.

He says there is a slim chance of detection in another WISE data set at longer wavelengths — sensitive to cooler radiation — which was collected for 20 % of the sky.

«This is not a problem when you use an infrared camera because at those longer wavelengths the cloud will be a million times more transparent.»

Finally, the team measured the color of the fluctuations by comparing the CIBER results to Spitzer measurements at longer wavelengths.

Although they are very bright, these stars can not be seen in visible - light images such as this one as the surrounding dust is too thick, but they make their presence clear in images of the region at longer wavelengths.

One represents the combined light of a galaxy's stars; the other, at longer wavelengths, comes from...

To get a different view, astronomer Giovanna Tinetti and her colleagues at the European Space Agency and University College London focused instead on the light grazing the atmosphere of HD 189733 b. Tinetti had predicted that water would absorb more light at the longer wavelength of 5.8 microns (thousandths of a millimeter) than at 3.6 microns, in contrast with other molecules such as methane and ammonia.

The bursts that appeared to be the most powerful churned out most of their energy in intense, short - wavelength gamma rays, while the weakest ones had peak energies at longer wavelength x-rays.

The space telescope is specially designed to observe cold objects emitting light at long wavelengths — objects like brown dwarfs.

At long wavelengths, several groups had observed a climbing spectrum consistent with a temperature of 3 °C above absolute zero.

A Phase - Induced Amplitude Apodization Complex Mask Coronagraph (PIAACMC), offering small IWA (1.25 λ / D), is used here to overcome the larger angular resolution at longer wavelength.

Consider a slab atmosphere modeled as a gray body (at long wavelengths) with emissivity «e».

The Sulfur Dioxide Analyzer measures sulfur dioxide based on absorbance of UV light at one wavelength by SO2 molecules which then decay to a lower energy state by emitting UV light at a longer wavelength.

But, that still does not explain why the Petty black body curves peak at a longer wavelength than the Carleton spreadsheet and other graphics on the Internet.

So near the surface the energy absorbed by CO2 is likely to be shuttled through N2 / O2 to be emitted at longer wavelength by H2O.

Ira, «But, that still does not explain why the Petty black body curves peak at a longer wavelength than the Carleton spreadsheet and other graphics on the Internet»

Robert Clemenzi says: May 9, 2011 at 12:26 am Why is «the Petty black body curves peak at a longer wavelength than the Carleton spreadsheet»?

Thanks dr.bill for trying to explain the reason the Petty curves place the peak «Radiance» at a longer wavelength than the «Intensity» of the Carleton spreadsheet and other Internet materials.

the major water vapor features are at longer wavelength or lower wavenumber than shown on the graph.

I believe that what happens is that it may emitted again as 7μ IR radiation, or at a longer wavelength such as a photon in the 10μ band.

Hmmm, so outgoing radiation at all wavelengths increases as temperature, but since the peak goes to lower wavelengths, it just does not increase as quickly at long wavelengths?

Not exact matches

Mirrors at the ends of each arm form a long «resonant cavity,» in which laser light of a precise wavelength bounces back and forth, resonating just as sound of a specific pitch rings in an organ pipe.

NASA's longest - lived mission to Mars has gained its first look at the Martian moon Phobos, pursuing a deeper understanding by examining it in infrared wavelengths.

A water - splitting photocatalyst that is operable at up to 600nm has been developed for the first time, using a transition - metal oxynitride whose electronic structure is suitable for long wavelength absorption.

In this research, a water - splitting photocatalyst that is operable at up to 600nm was developed for the first time, using a transition - metal oxynitride whose electronic structure is suitable for long wavelength absorption.

The team combined these UltraVISTA observations with those from the NASA Spitzer Space Telescope, which probes the cosmos at even longer, mid-infrared wavelengths [1].

At present, metamaterials work best for longer - wavelength radiation such as radio waves and microwaves, which require elements that are on the order of tens of millimeters.

But ground - based observatories can measure even longer, millimetre, wavelengths that would reveal objects at even greater distances, says Tom Crawford of the University of Chicago.

The resulting variations and correlations among pulsars» timing should reveal the cacophony of long - wavelength gravitational waves, and the spectrum of longer and shorter waves would help physicists trace the rate at which galaxies formed and merged throughout cosmic history.

The certified external quantum efficiency of 96 % at 300nm wavelength demonstrates that the increased surface recombination problem no longer exists and for the first time the black silicon is not limiting the final energy conversion efficiency.

Blue, green and red represent infrared light at successively longer wavelengths.

They produce electromagnetic radiation across the electromagnetic spectrum at all wavelengths from long - wave radio to the shortest wavelength gamma rays.

SPICAM — two spectrometers that examine Mars's atmosphere at wavelengths slightly shorter and slightly longer than visual light.