Sentences with word «waveband»

Many recently discovered dwarf galaxies, especially those seen in systematic photometric surveys such as the Sloan Digital Sky Survey (SDSS) and the Dark Energy Survey (DES) are very faint with absolute luminosity in the optical waveband below -8 magnitude.

Abigail Sellen and Mik Lamming of Rank Xerox in Cambridge are building pager - like devices that communicate in the infrared waveband with other transmitters, receivers and communication devices.

Aliens wishing to communicate would probably broadcast at frequencies between 1 and 10 gigahertz, where there's less astronomical background noise than in other wavebands.

However, the number of known molecular absorption systems seen in millimeter / submillimeter waveband has been very limited: only about 30 in the Milky Way galaxy and a limited number in other galaxies.

Unfortunately, different countries allocate different wavebands to these devices, and Stewart's tour has had to spend tens of thousands of pounds on equipment that complies with the law everywhere.

«In addition, LEDs are available in a variety of narrow wavebands; hence, it is possible to optimize light quality to improve both crop yield and quality.»

In the face of technical developments, which long ago made local and international radio - telephony possible, and which constantly opened up new wavebands for television — in the UHF band alone, the dissemination of numerous programs in one locality is possible without interference, not to mention the possibilities offered by wired and satellite television — the prevailing laws for control of the air are anachronistic.

The survey in far - infrared waveband covers 50 um — 180 um with four bands centered at 65 um, 90 um, 140 um, and 160 um and spatial resolution of 3000 — 4000 (FWHM).

It is a method that has been used for decades in the radio waveband field and using the CHARA Array, consisting of six telescopes, it has now become possible to observe the visible and near - infrared light.

Instead of focusing on a single region of the spectrum, it carries a suite of five instruments, including two telescopes, which will observe cosmic objects simultaneously in several wavebands: visible, ultraviolet, and soft and hard x-rays.

The BBC plans to «simulcast», transmitting its programmes in the digital format at the same time as they are broadcast on FM and AM wavebands.

To change wavebands touring bands plug different crystal oscillators into the transmitters and receivers.

Researchers demonstrate a nonvolatile infrared memory cell operating in the optical communication wavebands.

Researchers have demonstrated ALMA's unprecedented capability for polarimetry in millimeter wavebands.

Past observations showed the total power of signals emitted from the universe with the millimeter / submillimeter wavebands.

Its three onboard instruments will observe GRBs and their afterglows in four different wavebands: gamma ray, X-ray, ultraviolet and optical.

«Surprisingly, this is one of the faintest satellites, with absolute magnitude of -0.8 in the optical waveband.

The survey in far - infrared waveband covers 50 um — 180 um with four bands centered at 65 um, 90 um, 140 um, and 160 um and spatial... ▽ More We demonstrate the capability of AKARI for mapping diffuse far - infrared emission and achieved reliability of all - sky diffuse map.

«The radio emission arrives last but persists much longer than emissions at other wavebands,» Hallinan says.

Frequencies, transmitter power and the uses to which each waveband can be put are controlled by the government.

At the absolute magnitude of -0.8 in the optical waveband, it may well be the faintest satellite galaxy yet found.

The TES operates in the infrared waveband, between 6 and 50 micrometres.

So his company has built a modular system which can operate on 26 frequencies on three wavebands.

These are expected to have become rapidly enshrouded in the dust produced by the first stars; the dust absorbs much of the starlight making the galaxies difficult to see in the optical wavebands, but these same galaxies shine brightly at millimeter and submillimeter wavelengths.

The aim is to detect radiation at millimetre and sub-millimetre wavelengths, studying galaxies and planets that form in cold, dusty regions that can not easily be studied in other wavebands.

Unlike previous detections of this epoch's galaxy candidates, which were only glimpsed in a single color, or waveband, this newfound galaxy has been seen in five different wavebands.

Therefore galaxies, even those which it has not been possible to observe with optical telescopes, can be detected using these wavebands.

Furthermore, the team concluded that approximately 80 % of the sources of the cosmic background radiation (* 2) within the millimeter / submillimeter wavebands are more «normal galaxies» like those detected by ALMA this time..

With the Radio Controls, you can navigate from waveband to waveband, preset stations, or enter the radio frequency you prefer.

The windblows gently and the waveband dancing in the seashore entertain you with the real natural symphony to ease your mind.

All atoms and molecules absorb some waveband (s) of light, then they emit that photon of light shortly thereafter.