If the flux density of bremsstrahlung from an optically thin source is 9.7 x 1015 W m2 and the frequency for the region of the spectrum is ν > 1012 Hz, sketch a log-log graph of flux density against frequency for this region.
If the flux density of bremsstrahlung from an optically thin source is 9.7 x 1015 W...
The monochromatic flux of the Crab pulsar has a frequency
dependence of Fν∝ν^−0.3 between 10^10Hz and 10^12Hz. What is the
slope of a graph of log Fλ against log λ ? At which wavelength
would you expect the flux to peak?
The monochromatic flux of a radio source has a frequency dependence of F, a v-2.5 when measured in frequency units. What is the slope of a graph of log Fi against log \? At which end of the electromagnetic...
The intensity (flux) measured from a distant star is 5.2 x 10-7 W/m2. The wavelength of maximum power of the star is measured to be 290 nm. Using an HR diagram, estimate the distance to the star from Earth.