A 0.7 MO star on the horizontal branch has a radius of 10 RO and a surface temperature of 4500 K. The He-burning core is 10% of the mass of the star. Given that the He4 nucleus has a mass of 4.00260324 atomic mass units (a.m.u.) and the C12 nucleus has a mass of 12.00000000 a.m.u. estimate the maximum length of time the star could conceivably spend on the horizontal branch.

The measure of the temperature of the air in immediate proximity to the Earth's surface should be…

Answered: A 0.7 MO star on the horizontal branch…

Applications and Investigations in Earth Science (9th Edition)

9th Edition

ISBN:9780134746241

Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Chapter1: The Study Of Minerals

Section: Chapter Questions

Problem 1LR

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A 0.7 M_O star on the horizontal branch has a radius of 10 R_O and a surface temperature of 4500 K. The He-burning core is 10% of the mass of the star. Given that the He⁴ nucleus has a mass of 4.00260324 atomic mass units (a.m.u.) and the C¹² nucleus has a mass of 12.00000000 a.m.u. estimate the maximum length of time the star could conceivably spend on the horizontal branch.

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