Consider two zams stars 09 and b0 the effective temperature, Ask an Expert

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consider two ZAMS stars: 09 and B0. The effective temperature ( temperature at the photosphere ) of the 09 star is 34,500 k; Te of the B0 star is 30,900 K.

(a) Calculate the peak wavelength of the blackbody spectra of both stars.

(b) Calculate the energy in eV of the photons corresponding to the peak wavelength. Can these photons ionize hydrogen in the ground state?

(d) Assuming a hydrogen density of 10^8 m^-3, and Alpha = 3.1 x 10^-19 m^3 s^-1, estimate the Stromgren radius of the stars in pc and AU.

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