MG14 - Talk detail |
Participant |
Tauris, Thomas | |||||||
Institution |
AIfA, University of Bonn - Auf dem Huegel 71 - Bonn - NRW - Germany | |||||||
Session |
BN3 |
Accepted |
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Talk |
Oral abstract |
Title |
Ultra-stripped Supernovae and Double Neutron Star Systems | |||||
Coauthors | ||||||||
Abstract |
The evolution of close-orbit progenitor binaries of double neutron star (DNS) systems leads to supernova (SN) explosions of ultra-stripped stars. The amount of SN ejecta mass is very limited from such, more or less, naked metal cores with envelope masses of only 0.01-0.2 Msun. The combination of little SN ejecta mass and the associated possibility of small NS kicks is quite important for the characteristics of the resulting DNS systems left behind. In this talk, I discuss theoretical predictions for DNS systems and compare with observations. |
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Pdf file |
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Session |
NS4 |
Accepted |
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Time |
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Talk |
Oral abstract |
Title |
Progenitors of Ultra-stripped Supernovae | |||||
Coauthors | ||||||||
Abstract |
The explosion of ultra-stripped stars in close binaries may explain new discoveries of weak and fast optical transients. Recently, we have demonstrated that helium star companions to neutron stars (NSs) may evolve into naked ~1.5 Msun metal cores, barely above the Chandrasekhar mass limit, by the time they explode. Here we present a new systematic investigation of the progenitor evolution leading to such ultra-stripped supernovae (SNe), in some cases yielding pre-SN envelopes of less than 0.01 Msun. We discuss the nature of these SNe (electron-capture vs iron core-collapse) and their observational classification as Type Ic/Ib. Ultra-stripped SNe may produce low-kick NSs in the mass range 1.10-1.80 Msun and are highly relevant for binary pulsars as well as gravitational wave detection of merging NSs by LIGO/VIRGO. |
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Pdf file |
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Session |
BN3 |
Accepted |
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Order |
Time |
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Talk |
Oral abstract |
Title |
Introduction | |||||
Coauthors | ||||||||
Abstract |
Introduction |
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Pdf file |
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