Heidelberg 2015 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 62: Nuclear Astrophysics 5
HK 62.7: Vortrag
Donnerstag, 26. März 2015, 18:45–19:00, P/H1
Neutrino-driven winds from neutron star merger remnants⋆ — •Albino Perego1, Almudena Arcones1, Ruben Cabezon2, Roger Kaeppeli3, Oleg Korobkin4, Dirk Martin1, and Stephan Rosswog4 — 1Institut für Kernphysik, Technische Universität Darmstadt — 2Physics Department, University of Basel, Switzerland — 3Seminar for applied Mathematics, ETH Zürich, Switzerland — 4The Oskar Klein Centre, Department of Astronomy, AlbaNova, Stockholm University, Sweden
During the merger of two neutron stars, matter can be ejected in the interstellar medium through
different channels. The ejection mechanism, as well as the expansion timescale, can influence deeply
the matter properties and, eventually, the subsequent nucleosynthesis. In this talk, I will
present results regarding the formation and the properties of a neutrino-driven wind in the
aftermath of a binary neutron star merger, in presence of a long living hyper massive neutron star [1].
Implications in terms of nucleosynthesis, electromagnetic counterparts and gamma-ray burst engine will be also discussed [1,2].
[1] A. Perego et al., 2014, MNRAS, 443, 3134.
[2] D. Martin et al., in preparation.
⋆ Supported by Helmholtz-University Young Investigator grant No. VH-NG-825.