B3 Non-refereed article in a conference publication
New Solar Twins from the Geneva Copenhagen Survey
Authors: Datson J, Flynn C, Portinari L
Editors: Miguel Chavez, Emanuele Bertone, Olga Vega, Victor De la Luz
Publication year: 2013
Book title : New quests in stellar astrophysics III: A panchromatic view of solar-like stars, with and without planets
Journal name in source: NEW QUESTS IN STELLAR ASTROPHYSICS III: A PANCHROMATIC VIEW OF SOLAR-LIKE STARS, WITH AND WITHOUT PLANETS
Journal acronym: ASTR SOC P
Series title: Astronomical Society of the Pacific. Conference Proceedings
Volume: 472
First page : 131
Last page: 136
Number of pages: 2
ISBN: 978-1-58381-828-2
eISBN: 978-1-58381-829-9
Abstract
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.
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.
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