Zusammenfassung
In our own solar system, the necessity of understanding space weather is
readily evident. Fortunately for Earth, our nearest stellar neighbor is
relatively quiet, exhibiting activity levels several orders of magnitude lower
than young, solar-type stars. In protoplanetary systems, stellar magnetic
phenomena observed are analogous to the solar case, but dramatically enhanced
on all physical scales: bigger, more energetic, more frequent. While coronal
mass ejections (CMEs) could play a signi?cant role in the evolution of
protoplanets, they could also a?ffect the evolution of the central star itself.
To assess the consequences of prominence eruption/CMEs, we have invoked the
solar-stellar connection to estimate, for young, solar-type stars, how
frequently stellar CMEs may occur and their attendant mass and angular momentum
loss rates. We will demonstrate the necessary conditions under which CMEs could
slow stellar rotation.
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