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astro-ph.EP2012★ 1 cited
Transfer of Life-Bearing Meteorites from Earth to Other Planets
Tetsuya Hara, Kazuma Takagi, Daigo Kajiura
The probability is investigated that the meteorites originating on Earth are transferred to other planets in our Solar System and to extra solar planets. We take the collisional Ch…
astro-ph.CO2012
On the Formation Age of the First Planetary System
Tetsuya Hara, Shuhei Kunitomo, Masanobu Shigeyasu +1
Recently, it has been observed the extreme metal-poor stars in the Galactic halo, which must be formed just after Pop III objects. On the other hand, the first gas clouds of mass $…