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2019-04-01

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/155356

Gaia DR2 reveals a star formation burst in the disc 2-3 Gyr ago

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https://doi.org/10.1051/0004-6361/201935105

Abstract

We use Gaia DR2 magnitudes, colours and parallaxes for stars with G1.53 Msun and α2≈1.3 for the mass range between 0,5 and 1,53 Msun. This is the first time that we consider a non-parametric SFH for the thin disc in the Besancon Galaxy Model. This new step, together with the capabilities of the Gaia DR2 parallaxes to break degeneracies between different stellar populations, allow us to better constrain the SFH and the IMF.

Subject

Galàxies, Evolució de les galàxies, Estels, Discos (Astrofísica)

Subject (English)

Galaxies, Galaxies evolution, Stars, Disks (Astrophysics)

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Articles publicats en revistes (Física Quàntica i Astrofísica)
Publicacions de projectes de recerca finançats per la UE

Citation

MOR CRESPO, Roger, et al. Gaia DR2 reveals a star formation burst in the disc 2-3 Gyr ago. Astronomy & Astrophysics. 2019. Vol. 624, num. L1. ISSN 0004-6361. [consulted: 15 of August of 2026]. Available at: https://hdl.handle.net/2445/155356

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