TY - JOUR

T1 - Formation pathway for lonely stripped-envelope supernova progenitors

T2 - implications for Cassiopeia A

AU - Hirai, Ryosuke

AU - Sato, Toshiki

AU - Podsiadlowski, Philipp

AU - Vigna-Gomez, Alejandro

AU - Mandel, Ilya

PY - 2020/9/23

Y1 - 2020/9/23

N2 - We explore a new scenario for producing stripped-envelope supernova progenitors. In our scenario, the stripped-envelope supernova is the second supernova of the binary, in which the envelope of the secondary was removed during its red supergiant phase by the impact of the first supernova. Through 2D hydrodynamical simulations, we find that similar to 50-90 per cent of the envelope can be unbound as long as the pre-supernova orbital separation is less than or similar to 5 times the stellar radius. Recombination energy plays a significant role in the unbinding, especially for relatively high mass systems (greater than or similar to 18 M-circle dot). We predict that more than half of the unbound mass should be distributed as a one-sided shell at about similar to 10-100 pc away from the second supernova site. We discuss possible applications to known supernova remnants such as Cassiopeia A, RX J1713.7-3946, G11.2-0.3, and find promising agreements. The predicted rate is similar to 0.35-1 per cent of the core-collapse population. This new scenario could be a major channel for the subclass of stripped-envelope or type IIL supernovae that lack companion detections like Cassiopeia A.

AB - We explore a new scenario for producing stripped-envelope supernova progenitors. In our scenario, the stripped-envelope supernova is the second supernova of the binary, in which the envelope of the secondary was removed during its red supergiant phase by the impact of the first supernova. Through 2D hydrodynamical simulations, we find that similar to 50-90 per cent of the envelope can be unbound as long as the pre-supernova orbital separation is less than or similar to 5 times the stellar radius. Recombination energy plays a significant role in the unbinding, especially for relatively high mass systems (greater than or similar to 18 M-circle dot). We predict that more than half of the unbound mass should be distributed as a one-sided shell at about similar to 10-100 pc away from the second supernova site. We discuss possible applications to known supernova remnants such as Cassiopeia A, RX J1713.7-3946, G11.2-0.3, and find promising agreements. The predicted rate is similar to 0.35-1 per cent of the core-collapse population. This new scenario could be a major channel for the subclass of stripped-envelope or type IIL supernovae that lack companion detections like Cassiopeia A.

KW - binaries: general

KW - supernovae: general

KW - ISM: individual objects: Cassiopeia A

KW - X-RAY-EMISSION

KW - RX J1713.7-3946

KW - A SUPERNOVA

KW - REMNANT

KW - EVOLUTION

KW - COMPANION

KW - PULSAR

KW - ENERGY

KW - G11.2-0.3

KW - EXPLOSION

U2 - 10.1093/mnras/staa2898

DO - 10.1093/mnras/staa2898

M3 - Journal article

VL - 499

SP - 1154

EP - 1171

JO - Royal Astronomical Society. Monthly Notices

JF - Royal Astronomical Society. Monthly Notices

SN - 0035-8711

IS - 1

ER -