brightness temperature

Venus has a high brightness temperature in the radio frequencies compared to the infrared.

There was another very different category of explanation, in which the high brightness temperature of Venus had nothing to do with the ground.

That makes the reciprocal of the brightness temperature:

This technique works better with derived quantities rather than raw brightness temperatures since the scan angle will already have been accounted for.

Level-1 radiance data are calibrated brightness temperatures.

The brightness temperature can be used to calculate the spectral index of a body, in the case of non-thermal radiation.

As a consequence, even the ATA-42 is competitive with much larger telescopes in its capability for both brightness temperature and point-source surveys.

If it is near the center, though, the researchers say it would have a brightness temperature exceeding most other known types of objects that emit radio waves.

Brightness Temperature (Tb)

Brightness temperatures are processed as quickly as possible and sent to numerical weather prediction (NWP) centers around the world.

In general, the brightness temperature is a function of , and only in the case of blackbody radiation is it the same at all frequencies.

This active fire algorithm uses brightness temperatures derived from MODIS bands 21, 22 and 31.

They differ in terms of duration, energy released, brightness temperature (determined from infrared imaging), type of lava flow, and whether it is confined within volcanic pits.

The discoverers argue that if the source is further than 70 parsecs away, its high brightness temperature would require it to be powered by a coherent emission process.

The ATA-206 should match the brightness temperature sensitivity of Arecibo and the GBT.

The measurement vector is typically counts, radiances or brightness temperatures from a radiometer or similar detector but could include any other quantity germain to the problem.

Observations of the planet's brightness temperature with the Spitzer Space Telescope suggest a possible thermochemical disequilibrium in the atmosphere of this exoplanet.

"Brightness Temperatures Expected for a Radio Telescope with High Resolving Power," In Proc.

Given an atmospheric profile of temperature, variable gas concentrations, cloud and surface properties CRTM calculates radiances and brightness temperatures.

For surveys to a specified brightness temperature sensitivity, the ATA-98 will exceed the survey speed of even the VLA-D configuration.

The brightness temperature of a maser is the temperature a black body would have if producing the same emission brightness at the wavelength of the maser.

In 1965, Antony Hewish and Samuel Okoye discovered "an unusual source of high radio brightness temperature in the Crab Nebula".

There are specialized codes which allow simulation of the AVHRR observable brightness temperatures and radiances in near infrared and infrared channels.

The arrangement and orientation of MIRAS makes the instrument a 2-D interferometric radiometer that generates brightness temperature images, from which both geophysical variables are computed.

These products yield sample points in the Fourier transform of the brightness temperature map of the scene, and the scene itself is reconstructed by inverting the sampled transform.