The solar r-process residual distribution

4 Jul 2019, 15:05
35m
Meeting room (ECT* - Trento)

Meeting room

ECT* - Trento

Strada delle Tabarelle, 286 38123 - Villazzano (TN) Italy

Speaker

Dr Sergio Cristallo (INAF - Osservatorio Astronomico d'Abruzzo)

Description

Theoretical r-process models still suffer for severe uncertainties, regarding in particular the physical conditions characterizing the hosting site and the adopted nuclear inputs.
For this reason, the contribution of the r-process to the solar distribution is commonly derived by subtracting the contribution coming from the slow neutron capture process (s-process), as r=1-s.
This curve provides, together with low metallicity stars heavy element distributions, the point of reference for r-process nucleosynthesis calculations. I will show the r-process residuals distribution we recently derived with a Galactic Chemical Evolution model including recent Asymptotic Giant Branch stars and rotating massive stars yields.

Primary author

Dr Sergio Cristallo (INAF - Osservatorio Astronomico d'Abruzzo)

Co-authors

Prof. Nikos Prantzos (Institut d’Astrophysique de Paris) Prof. Carlos Abia (Universidad de Granada) Dr Marco Limongi (INAF - Osservatorio Astronomico di Roma) Alessandro Chieffi (INAF - Istituto di Astrofisica e Planetologia Spaziali)

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