Question

Blackbody Radiation, Wein’s Law, and BrightnessIt is believed that some white dwarf stars could host planets.

(a) If the white dwarf has a luminosity ofLW D= 10−2L, how far from it must one of its’ planets besuch that the planet receives the same flux as the Earth does from our Sun (FEarth= 1360W/m2)?

(b) If this white dwarf has a surface temperature ofTeff= 15000 K, then what is the peak wavelengthof its’ blackbody radiation?

(c) Sketch the blackbody radiation curve for this white dwarf, assuming no spectral lines.

Answer 1

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