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Title: Gaia DR2 reveals a star formation burst in the disc 2-3 Gyr ago
Author: Mor Crespo, Roger
Robin, A. C.
Figueras Siñol, Francesca
Roca Fàbrega, Santi
Luri Carrascoso, Xavier
Keywords: Galàxies
Evolució de les galàxies
Discos (Astrofísica)
Galaxies evolution
Disks (Astrophysics)
Issue Date: 1-Apr-2019
Publisher: EDP Sciences
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.
Note: Reproducció del document publicat a:
It is part of: Astronomy & Astrophysics, 2019, vol. 624, num. L1
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ISSN: 0004-6361
Appears in Collections:Publicacions de projectes de recerca finançats per la UE
Articles publicats en revistes (Física Quàntica i Astrofísica)

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