New Solar Twins from the Geneva Copenhagen Survey



: Datson J, Flynn C, Portinari L

: Miguel Chavez, Emanuele Bertone, Olga Vega, Victor De la Luz

: 2013

: New quests in stellar astrophysics III: A panchromatic view of solar-like stars, with and without planets

: NEW QUESTS IN STELLAR ASTROPHYSICS III: A PANCHROMATIC VIEW OF SOLAR-LIKE STARS, WITH AND WITHOUT PLANETS

: ASTR SOC P

: Astronomical Society of the Pacific. Conference Proceedings

: 472

: 131

: 136

: 2

: 978-1-58381-828-2

: 978-1-58381-829-9


When selecting candidate solar twins, both photometric and spectroscopic criteria have to be considered. We used Sun-like stars from the Geneva Copenhagen Survey, pre-selecting their absolute magnitude, b-y colour and metallicity to be close to the solar values. The aim was to find in this sample the objects which are spectroscopically closest to the Sun. We present the ten best stars fulfilling these combined photometric and spectroscopic criteria, of which six are new twins. We then use our sample of Sun-like stars to discuss the metallicity and temperature scales in the Geneva Copenhagen Survey.



Last updated on 2024-26-11 at 11:33