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Spectroscopic and photometric survey of the northern sky: Towards understanding of the Galactic chemical environment in the Solar vicinity

Published online by Cambridge University Press:  13 January 2020

Š. Mikolaitis ,
G. Tautvaišienė ,
A. Drazdauskas ,
R. Minkevičiūtė ,
L. Klebonas ,
V. Bagdonas ,
E. Pakštienė  and
R. Janulis
Š. Mikolaitis
Affiliation:
Institute of Theoretical Physics and Astronomy, Vilnius University, Sauletekio av. 3, 10257, Vilnius, Lithuania email: [email protected]
G. Tautvaišienė
Affiliation:
Institute of Theoretical Physics and Astronomy, Vilnius University, Sauletekio av. 3, 10257, Vilnius, Lithuania email: [email protected]
A. Drazdauskas
Affiliation:
Institute of Theoretical Physics and Astronomy, Vilnius University, Sauletekio av. 3, 10257, Vilnius, Lithuania email: [email protected]
R. Minkevičiūtė
Affiliation:
Institute of Theoretical Physics and Astronomy, Vilnius University, Sauletekio av. 3, 10257, Vilnius, Lithuania email: [email protected]
L. Klebonas
Affiliation:
Institute of Theoretical Physics and Astronomy, Vilnius University, Sauletekio av. 3, 10257, Vilnius, Lithuania email: [email protected] Mathematisch-Naturwissenschaftliche Fakulttat, Universittat Bonn, Wegelerstrase 10, 53115 Bonn, Germany
V. Bagdonas
Affiliation:
Institute of Theoretical Physics and Astronomy, Vilnius University, Sauletekio av. 3, 10257, Vilnius, Lithuania email: [email protected]
E. Pakštienė
Affiliation:
Institute of Theoretical Physics and Astronomy, Vilnius University, Sauletekio av. 3, 10257, Vilnius, Lithuania email: [email protected]
R. Janulis
Affiliation:
Institute of Theoretical Physics and Astronomy, Vilnius University, Sauletekio av. 3, 10257, Vilnius, Lithuania email: [email protected]
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Abstract

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High-resolution spectra for all bright ( mag) and cooler than F5 spectral class dwarf stars were observed in two fields with radii of 20 degrees (centered at (2000) = 161.03º and (2000) = 86.60º and at (2000) = 265.08º and (2000) = 39.58º) towards the northern ecliptic pole. They coincide with two of the preliminary ESA PLATO fields which also will be targeted by the NASA TESS mission. We use high-resolution spectra obtained with the VUES spectrograph mounted on the 1.65 m telescope at the Moletai Astronomical Observatory of the Institute of Theoretical Physics and Astronomy, Vilnius University. In total we observed 405 stars. Spectroscopic atmospheric parameters and abundances of 23 neutral and ionised atomic species were determined for 261 slowly rotating stars (up to 15 kms-1). 73% of stars were analysed spectroscopically for the first time. We also derived stellar ages and orbital parameters to draw a chemical picture of the Solar vicinity.

Keywords

stars: abundances
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S345: Origins: From the Protosun to the First Steps of Life , August 2018 , pp. 248 - 249
Copyright
© International Astronomical Union 2020 

References

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