The paper “CSI 2264: Simultaneous optical and X-ray variability in pre-main sequence stars. I” of M. G. Guarcello has been published in A&A
Observing how the light emitted by stars changes with the time can be an interesting hobby, but it can also be something more important: an important and powerful diagnostic for something that can be hardly studied with some other approach… This can be particularly important for pre-main sequence stars with protoplanetary disks. In these stars, in fact, important and
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