stellar spectra The Hertzsprung- Russel diagram a.k.a. HR diagram Vertical axis: L * Horiz. axis: T...

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Transcript of stellar spectra The Hertzsprung- Russel diagram a.k.a. HR diagram Vertical axis: L * Horiz. axis: T...

Page 1: stellar spectra The Hertzsprung- Russel diagram a.k.a. HR diagram Vertical axis: L * Horiz. axis: T s * color of the star.

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Page 2: stellar spectra The Hertzsprung- Russel diagram a.k.a. HR diagram Vertical axis: L * Horiz. axis: T s * color of the star.

stellar spectra

Page 3: stellar spectra The Hertzsprung- Russel diagram a.k.a. HR diagram Vertical axis: L * Horiz. axis: T s * color of the star.

stellar spectra

Page 4: stellar spectra The Hertzsprung- Russel diagram a.k.a. HR diagram Vertical axis: L * Horiz. axis: T s * color of the star.

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Page 5: stellar spectra The Hertzsprung- Russel diagram a.k.a. HR diagram Vertical axis: L * Horiz. axis: T s * color of the star.

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Page 6: stellar spectra The Hertzsprung- Russel diagram a.k.a. HR diagram Vertical axis: L * Horiz. axis: T s * color of the star.

• The Hertzsprung-Russel diagram

• a.k.a. HR diagram

• Vertical axis: L*

• Horiz. axis: Ts*

color of the star

Page 7: stellar spectra The Hertzsprung- Russel diagram a.k.a. HR diagram Vertical axis: L * Horiz. axis: T s * color of the star.

• The Hertzsprung-Russel diagram

• a.k.a. HR diagram

• Vertical axis: L*

• Horiz. axis: Ts*

color of the star

Page 8: stellar spectra The Hertzsprung- Russel diagram a.k.a. HR diagram Vertical axis: L * Horiz. axis: T s * color of the star.

• The Hertzsprung-Russel diagram

• a.k.a. HR diagram

• Vertical axis: L*

• Horiz. axis: Ts*

Page 9: stellar spectra The Hertzsprung- Russel diagram a.k.a. HR diagram Vertical axis: L * Horiz. axis: T s * color of the star.
Page 10: stellar spectra The Hertzsprung- Russel diagram a.k.a. HR diagram Vertical axis: L * Horiz. axis: T s * color of the star.

• Red giants – top right

• L* very big

– He burns hot and fast

• Ts* is low

– surface far from core

Page 11: stellar spectra The Hertzsprung- Russel diagram a.k.a. HR diagram Vertical axis: L * Horiz. axis: T s * color of the star.

planetary nebula with white dwarf

Page 12: stellar spectra The Hertzsprung- Russel diagram a.k.a. HR diagram Vertical axis: L * Horiz. axis: T s * color of the star.

Hubble image of Crab nebula

Page 13: stellar spectra The Hertzsprung- Russel diagram a.k.a. HR diagram Vertical axis: L * Horiz. axis: T s * color of the star.
Page 14: stellar spectra The Hertzsprung- Russel diagram a.k.a. HR diagram Vertical axis: L * Horiz. axis: T s * color of the star.

Chandra X-ray image of Crab nebula


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