Sentences with phrase «radiation near the sun»

Not exact matches

«These data are a fundamental reference for the radiation hazards in near Earth «geospace» out to Mars and other regions of our sun's vast heliosphere,» says CRaTER principal investigator Nathan Schwadron of the UNH Institute for the Study of Earth, Oceans, and Space (EOS).

The largest of these eruptions cause what is known as space weather — the radiation, energetic particles and magnetic field releases from the Sun powerful enough to cause severe effects in Earth's near environment, such as the disruption of communications, power lines and navigations systems.

Although nowhere near as strong as a magnetar, it is still strong enough to protects us from harmful radiation sent from the Sun, and it causes the beautiful Northern Lights!

However, in comparison with the solar case, the FIR photosphere of alpha Cen A appears marginally cooler, Tmin = T160mu = 3920 + / -375 K. Beyond the minimum near 160mu, the brightness temperatures increase and this radiation likely originates in warmer regions of the chromosphere of alpha Cen A. To the best of our knowledge this is the first time a temperature minimum has been directly measured on a main - sequence star other than the Sun.

And the highest intensity of the electromagnetic radiation coming form our sun is in the visible and near infrared part of this spectrum.

Visible and near - visible radiation from the sun easily gets through, but thermal radiation from the surface can't easily get back out.

«This H2O negative - feedback effect on CO2 is ignored in models that assume that warm moist air does not rise and form sunlight - reflecting clouds, but remains as humid air near sea level, absorbing infrared radiation from the sun, and approximately doubling the temperature rises predicted from atmospheric CO2 increases.

Now the sun would be expected to set up an undisturbed gradient from cold at the bottom to warm at the top but it does not because upward radiation from the surface plus energy drawn upwards by evaporation at the surface creates a layer 1 mm deep near the surface (the subskin) which is 0.3 C cooler than the water below it.

* The real spectra is not very close to any blackbody spectra (slightly different shape) * The measurement devices do not agree * The radiation temperature of the center of the solar disk is higher than the apparent temperature near the edge * The temperature of the outer corona is more than 1,000 hotter than the «surface» * The Sun does not have a surface * The distance between the Earth and Sun varies (the orbit is an ellipse), and different references handle this differently

The first, the Visible Light Window, on the left side of the graphic, allows visible and near - visible light from the Sun to pass through with small losses, and the second, the Longwave Window, on the right, allows the central portion of the longwave radiation band from the Earth to pass through with small losses, while absorbing and re-emitting the left and right portions.