This thesis develops new and powerful methods for identifying planetary signals in the presence of noise generated by stellar activity, and explores the physical origin of stellar intrinsic variability, using unique observations of the Sun seen as a star. In particular, it establishes that the intrinsic stellar radial-velocity variations mainly arise from suppression of photospheric convection by magnetic fields. With the advent of powerful tel...
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Many books cover permanent astronomical objects, but few consider transient, out-of-the-ordinary astronomical phenomena. This book covers a wide range of topics, from the partly-predictable to the tot...
Using fundamental physics, the theory of stellar structure and evolution can predict how stars are born, how their complex internal structure changes, what nuclear fuel they burn, and their ultimate f...