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Impact of space weather on climate and habitability of terrestrial-type exoplanets
Luhmann, J. G.; France, K.; Verkhoglyadova, O. P. +44 more
The search for life in the Universe is a fundamental problem of astrobiology and modern science. The current progress in the detection of terrestrial-type exoplanets has opened a new avenue in the characterization of exoplanetary atmospheres and in the search for biosignatures of life with the upcoming ground-based and space missions. To specify t…
Astrometric study of Gaia DR2 stars for interstellar communication
Seto, Naoki; Kashiyama, Kazumi
We discuss the prospects of high precision pointing of our transmitter to habitable planets around Galactic main sequence stars. For an efficient signal delivery, the future sky positions of the host stars should be appropriately extrapolated with accuracy better than the beam opening angle $\Theta$ of the transmitter. Using the latest data releas…