Sentences with phrase «electromagnetic emissions of»

Light is defined conventionally by physicists as electromagnetic emissions of any frequency and not merely the visual.

Winds are estimated by using an upward - looking Doppler radar, while temperature and moisture profiles are evaluated by using a vertically pointing radiometer that measures electromagnetic emissions of selected wavelengths at various heights in the troposphere.

Not exact matches

In a recent experiment performed at the Radioactive Isotope Beam Factory at RIKEN, an international collaboration with scientists from eleven countries, led by scientists of the Instituto de Estructura de la Materia, CSIC (Spain) and the RIKEN Nishina Center (Japan), made a very surprising observation: High - energy gamma rays — which are mediated by the electromagnetic force — are emitted in the decay of a certain excited nucleus — tin 133, in competition with neutron emission, the decay mode mediated by the strong nuclear force.

«We control the below - threshold harmonic light emission by using electromagnetic fields with time - dependent ellipticity, like we have done to the above - threshold high - order harmonics,» said Chang referring to the creation of a 67 - attosecond pulse of extreme ultraviolet light, which earned him international recognition.

Because these electromagnetic emissions are on the order of an electron volt, and they probably come from a single molecule, or atom, or electron, we can now say that the energy concentration is now on the order of one electron volt per molecule — an increase of a factor of 1011 or so.

Their short durations, and strong emissions across the entire electromagnetic spectrum, require close communication, sharing of data, and collaborative efforts amongst astronomers.

Sky surveys and mappings of the various wavelength bands of electromagnetic radiation (in particular 21 - cm emission) have yielded much information on the content and character of the universe's structure.

So thirsty are theorists for new insights into black holes and relativistic processes that, with each LIGO detection, observational astronomers have leapt into action to target those enormous patches of sky, hoping to see some afterglow or other emission of electromagnetic radiation — even though by definition the resulting larger black hole should emit no light.

Depending on their size, so called near - fields (electromagnetic fields close to the particle surface) were induced by the laser pulses, resulting in a controlled directional emission of electrons.

The need of the authorities to control radio emissions has meant the development of specific regulation on exposure to electromagnetic fields.

The satellite data is being combined with that collected by the National Lightning Detection Network and from a network of sensors that measure low - frequency electromagnetic emissions, or «sferics,» and changes in the direction of the electric field.

A powerful electromagnetic emission from a U.S. radar in the Pacific could have caused the malfunctioning of the Russian Phobos - Grunt probe, the Kommersant daily said on Tuesday.

The most important discovery in astronomy in 2017 was the groundbreaking discovery of a gravitational wave event GW170817 due to the merger of two neutron stars as well as its associated short GRB (gamma ray burst) 170817A and other electromagnetic counterpart emissions in multi-wavelength.

In active galaxies, a region near the center produces enormous amounts of emission across the entire electromagnetic spectrum.

«The game to see the light from these catastrophic mergers is on,» says Mansi Kasliwal, assistant professor of astronomy and the leader of the Caltech effort to search for electromagnetic emission from gravitational waves using the intermediate Palomar Transient Factory, a robotic survey for astrophysical transients (brief, intense flashes of light), and a network of other telescopes.

The rest goes into pulses observed elsewhere in the electromagnetic spectrum and into cosmic rays, with perhaps some going into the emission of gravitational energy, or gravity waves.

Spectroscopy: The study of the interaction between electromagnetic radiation and matter, with absorption or emission of radiant energy.

Another of his recent work, on how to strategically point telescopes to find electromagnetic counterparts to gravitational wave sources, was adapted for observations by the Very Large Array radio telescope in New Mexico, which successfully observed radio emission from the merger.

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

Massive yet non-supergiant entities known as «Be stars» are main - sequence stars that notably have, or had at some time, one or more Balmer lines in emission, with the hydrogen - related electromagnetic radiation series projected out by the stars being of particular interest.

Once the electromagnetic environment has been significantly changed by these emissions, then we will be in a new era of evolution.

The resulting data connection is ultra-fast, secure and free of harmful electromagnetic emissions.

As a scientist, I do not understand how photons are not relevant to the emission, transfer, and absorption of electromagnetic energy.

Concepts of electromagnetic and acoustic wave propagation; active and passive remote sensing techniques including radar, lidar, thermal emission systems

[59] Science is recruited not to advance technological innovation, but to assess the potential or possible risks of both industrialization and new technologies, from bio - and nanotechnology to pesticides, electromagnetic waves, and greenhouse gas emissions.

A team of researchers at Carnegie Mellon University's Future Interfaces Group is working on the concept that could mark a huge breakthrough in the field of NFC: electromagnetic emissions sensing.