期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 475, 期 1, 页码 1198-1202出版社
OXFORD UNIV PRESS
DOI: 10.1093/mnras/stx3287
关键词
binaries: close; stars: jets; supernovae: general; galaxies: jets
资金
- Pazi grant
- Israel Science Foundation
- Blavatnik Family foundation
We propose a common-envelope jets supernova scenario for the enigmatic supernova iPTF14hls where a neutron star that spirals-in inside the envelope of a massive giant star accretes mass and launches jets that power the ejection of the circumstellar shell and a few weeks later the explosion itself. To account for the kinetic energy of the circumstellar gas and the explosion, the neutron star should accrete a mass of approximate to 0.3 M-circle dot. The tens x M-circle dot of circumstellar gas that accounts for some absorption lines is ejected, while the neutron star orbits for about one to several weeks inside the envelope of the giant star. In the last hours of the interaction, the neutron star merges with the core, accretes mass, and launches jets that eject the core and the inner envelope to form the explosion itself and the medium where the supernova photosphere resides. The remaining neutron star accretes fallback gas and further powers the supernova. We attribute the 1954 pre-explosion outburst to an eccentric orbit and temporary mass accretion by the neutron star at periastron passage prior to the onset of the common envelope phase.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据