The remarkable solar twin HIP 56948: a prime target in the quest for other Earths

• Published in: Astronomy and astrophysics (Berlin) Vol. 543; p. A29
• Main Authors: Meléndez, J., Bergemann, M., Cohen, J. G., Endl, M., Karakas, A. I., Ramírez, I., Cochran, W. D., Yong, D., MacQueen, P. J., Kobayashi, C., Asplund, M.
• Format: Journal Article
• Language: English
• Published: Les Ulis EDP Sciences 01.07.2012
• Subjects: Astronomy; Earth; Earth, ocean, space; Exact sciences and technology; meteorites; meteoroids; meteors; planet-star interactions; stars: abundances; stars: fundamental parameters; Sun: abundances; Uncertainty; Sun: abundances; Vapor condensation; Meteors; Planetary system; Convection; Earth, meteorites, meteors, meteoroids; Element abundance; Planetary cosmogony; Asteroids; Anomaly; Chemical composition; Radial velocity; Chemical properties; Age; Solar type star; Isochrone; Giant planet; Stellar abundance; planet-star interactions; Meteoroids; Physical properties; Sun; Habitable space; Meteorites; Terrestrial planet; Physical parameter; stars: abundances stars: fundamental parameters

Context. The Sun shows abundance anomalies relative to most solar twins. If the abundance peculiarities are due to the formation of inner rocky planets, that would mean that only a small fraction of solar type stars may host terrestrial planets. Aims. In this work we study HIP 56948, the best solar ...