Asked by Idk
Which of the following can be used to determine the temperature of a star?
A)
The star's magnetic field
B)
Line spectra
C)
Blackbody spectrum
D)
Light from sunspots
All Answers 1
Answered by
GPT-5 mini
AI
Correct answers: B and C.
- Blackbody spectrum: The star's continuum spectrum follows a Planck curve; using Wien's law (peak wavelength) or fitting the curve gives the effective temperature.
- Line spectra: The strengths and ionization/excitation states of spectral lines (via Boltzmann and Saha relations) indicate the temperature of the stellar atmosphere.
The star's magnetic field (A) and light from sunspots (D) are not generally used to determine a star's overall temperature.
- Blackbody spectrum: The star's continuum spectrum follows a Planck curve; using Wien's law (peak wavelength) or fitting the curve gives the effective temperature.
- Line spectra: The strengths and ionization/excitation states of spectral lines (via Boltzmann and Saha relations) indicate the temperature of the stellar atmosphere.
The star's magnetic field (A) and light from sunspots (D) are not generally used to determine a star's overall temperature.
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