Light-curve and spectral properties of ultra-stripped core-collapse supernovae leading to binary neutron stars
We investigate light-curve and spectral properties of ultra-stripped core-collapse supernovae. Ultra-stripped supernovae are the explosions of heavily stripped massive stars which lost their envelopes via binary interactions with a compact companion star. They eject only ∼0.1~M⊙ and may be the main...
| المؤلفون الرئيسيون: | , , , , , , , , , |
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| التنسيق: | Journal article |
| منشور في: |
Oxford University Press
2016
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| _version_ | 1826284653508558848 |
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| author | Moriya, T Mazzali, P Tominaga, N Hachinger, S Blinnikov, S Tauris, T Takahashi, K Tanaka, M Langer, N Podsiadlowski, P |
| author_facet | Moriya, T Mazzali, P Tominaga, N Hachinger, S Blinnikov, S Tauris, T Takahashi, K Tanaka, M Langer, N Podsiadlowski, P |
| author_sort | Moriya, T |
| collection | OXFORD |
| description | We investigate light-curve and spectral properties of ultra-stripped core-collapse supernovae. Ultra-stripped supernovae are the explosions of heavily stripped massive stars which lost their envelopes via binary interactions with a compact companion star. They eject only ∼0.1~M⊙ and may be the main way to form double neutron-star systems which eventually merge emitting strong gravitational waves. We follow the evolution of an ultra-stripped supernova progenitor until iron core collapse and perform explosive nucleosynthesis calculations. We then synthesize light curves and spectra of ultra-stripped supernovae using the nucleosynthesis results and present their expected properties. Ultra-stripped supernovae synthesize ∼0.01~M⊙ of radioactive 56Ni, and their typical peak luminosity is around 1042~erg~s−1 or −16 mag. Their typical rise time is 5 − 10 days. Comparing synthesized and observed spectra, we find that SN 2005ek, some of the so-called calcium-rich gap transients, and SN 2010X may be related to ultra-stripped supernovae. If these supernovae are actually ultra-stripped supernovae, their event rate is expected to be about 1 per cent of core-collapse supernovae. Comparing the double neutron-star merger rate obtained by future gravitational-wave observations and the ultra-stripped supernova rate obtained by optical transient surveys identified with our synthesized light-curve and spectral models, we will be able to judge whether ultra-stripped supernovae are actually a major contributor to the binary neutron star population and provide constraints on binary stellar evolution. |
| first_indexed | 2024-03-07T01:17:05Z |
| format | Journal article |
| id | oxford-uuid:8f0e6e70-46f1-4b76-bbe2-a9d90c8c3aca |
| institution | University of Oxford |
| last_indexed | 2024-03-07T01:17:05Z |
| publishDate | 2016 |
| publisher | Oxford University Press |
| record_format | dspace |
| spelling | oxford-uuid:8f0e6e70-46f1-4b76-bbe2-a9d90c8c3aca2022-03-26T23:01:51ZLight-curve and spectral properties of ultra-stripped core-collapse supernovae leading to binary neutron starsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:8f0e6e70-46f1-4b76-bbe2-a9d90c8c3acaSymplectic Elements at OxfordOxford University Press2016Moriya, TMazzali, PTominaga, NHachinger, SBlinnikov, STauris, TTakahashi, KTanaka, MLanger, NPodsiadlowski, PWe investigate light-curve and spectral properties of ultra-stripped core-collapse supernovae. Ultra-stripped supernovae are the explosions of heavily stripped massive stars which lost their envelopes via binary interactions with a compact companion star. They eject only ∼0.1~M⊙ and may be the main way to form double neutron-star systems which eventually merge emitting strong gravitational waves. We follow the evolution of an ultra-stripped supernova progenitor until iron core collapse and perform explosive nucleosynthesis calculations. We then synthesize light curves and spectra of ultra-stripped supernovae using the nucleosynthesis results and present their expected properties. Ultra-stripped supernovae synthesize ∼0.01~M⊙ of radioactive 56Ni, and their typical peak luminosity is around 1042~erg~s−1 or −16 mag. Their typical rise time is 5 − 10 days. Comparing synthesized and observed spectra, we find that SN 2005ek, some of the so-called calcium-rich gap transients, and SN 2010X may be related to ultra-stripped supernovae. If these supernovae are actually ultra-stripped supernovae, their event rate is expected to be about 1 per cent of core-collapse supernovae. Comparing the double neutron-star merger rate obtained by future gravitational-wave observations and the ultra-stripped supernova rate obtained by optical transient surveys identified with our synthesized light-curve and spectral models, we will be able to judge whether ultra-stripped supernovae are actually a major contributor to the binary neutron star population and provide constraints on binary stellar evolution. |
| spellingShingle | Moriya, T Mazzali, P Tominaga, N Hachinger, S Blinnikov, S Tauris, T Takahashi, K Tanaka, M Langer, N Podsiadlowski, P Light-curve and spectral properties of ultra-stripped core-collapse supernovae leading to binary neutron stars |
| title | Light-curve and spectral properties of ultra-stripped core-collapse supernovae leading to binary neutron stars |
| title_full | Light-curve and spectral properties of ultra-stripped core-collapse supernovae leading to binary neutron stars |
| title_fullStr | Light-curve and spectral properties of ultra-stripped core-collapse supernovae leading to binary neutron stars |
| title_full_unstemmed | Light-curve and spectral properties of ultra-stripped core-collapse supernovae leading to binary neutron stars |
| title_short | Light-curve and spectral properties of ultra-stripped core-collapse supernovae leading to binary neutron stars |
| title_sort | light curve and spectral properties of ultra stripped core collapse supernovae leading to binary neutron stars |
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