Production of Nickel-56 in black hole-neutron star merger accretion disk outflows
Production of Nickel-56 in black hole-neutron star merger accretion disk outflows
复制标题
黑洞-中子星合并吸积盘流出中产生镍 56
DOI:
10.1088/0954-3899/41/4/044006
复制
发表时间:
2013
期刊:
影响因子:
--
通讯作者:
H. Janka
中科院分区:
文献类型:
--
作者:
R. Surman;O. L. Caballero;G. McLaughlin;O. Just;H. Janka
The likely outcome of a compact object merger event is a central black hole surrounded by a rapidly accreting torus of debris. This disk of debris is a rich source of element synthesis, the outcome of which is needed to predict electromagnetic counterparts of individual events and to understand the contribution of mergers to galactic chemical evolution. Here we study disk outflow nucleosynthesis in the context of a two-dimensional, time-dependent black hole-neutron star merger accretion disk model. We use two time snapshots from this model to examine the impact of the evolution of the neutrino fluxes from the disk on the element synthesis. While the neutrino fluxes from the early-time disk snapshot appear to favor neutron-rich outflows, by the late-time snapshot the situation is reversed. As a result we find copious production of Nickel-56 in the outflows.
影响因子:
4.8
作者:
Grossman, Doron;Korobkin, Oleg;Piran, Tsvi
通讯作者:
Piran, Tsvi
DOI:
10.1111/j.1365-2966.2012.21859.x
发表时间:
2012-11-01
影响因子:
4.8
作者:
Korobkin, O.;Rosswog, S.;Winteler, C.
通讯作者:
Winteler, C.