Stripped-envelope stars in different metallicity environments
| العنوان: | Stripped-envelope stars in different metallicity environments |
|---|---|
| المؤلفون: | David R. Aguilera-Dena, Bernhard Müller, John Antoniadis, Norbert Langer, Luc Dessart, Alejandro Vigna-Gómez, Sung-Chul Yoon |
| المصدر: | Aguilera-Dena, D R, Mueller, B, Antoniadis, J, Langer, N, Dessart, L, Vigna-Gomez, A & Yoon, S-C 2023, ' Stripped-envelope stars in different metallicity environments II. Type I supernovae and compact remnants ', Astronomy & Astrophysics, vol. 671, A134 . https://doi.org/10.1051/0004-6361/202243519 |
| بيانات النشر: | EDP Sciences, 2023. |
| سنة النشر: | 2023 |
| مصطلحات موضوعية: | BLACK-HOLE FORMATION, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, MASS-LOSS RATES, general [binaries], massive [stars], SUPERLUMINOUS SUPERNOVAE, NEUTRON-STAR, Astrophysics::Solar and Stellar Astrophysics, PRESUPERNOVA EVOLUTION, winds, outflows [stars], Solar and Stellar Astrophysics (astro-ph.SR), Astrophysics::Galaxy Astrophysics, High Energy Astrophysical Phenomena (astro-ph.HE), BINARY INTERACTION, Astronomy and Astrophysics, HELIUM STARS, WOLF-RAYET STARS, Wolf-Rayet [stars], HOST GALAXIES, Astrophysics - Solar and Stellar Astrophysics, STELLAR EVOLUTION, Space and Planetary Science, Astrophysics - High Energy Astrophysical Phenomena, general [supernovae] |
| الوصف: | Stripped-envelope stars can be observed as Wolf-Rayet (WR) stars, or as less luminous hydrogen-poor stars with low mass loss rates and transparent winds. Both types are potential progenitors of Type I core-collapse supernovae (SNe). We use grids of core-collapse models obtained from helium stars at different metallicities to study the effects of metallicity on the transients and remnants these stars produce. We characterise the surface and core properties of our core collapse models, and investigate their explodability employing three criteria. In cases where explosions are predicted, we estimate the ejecta mass, explosion energy, nickel mass and neutron star (NS) mass. Otherwise, we predict the mass of the resulting black hole (BH). We construct a simplified population model, and find that the properties SNe and compact objects depend strongly on metallicity. Ejecta masses and explosion energies for Type Ic SNe are best reproduced by models with Z=0.04 which exhibit strong winds during core helium burning. This implies that either their mass loss rates are underestimated, or that Type Ic SN progenitors experience mass loss through other mechanisms before exploding. The distributions of ejecta masses, explosion energies and nickel mass for Type Ib SNe are not well reproduced by progenitor models with WR mass loss, but are better reproduced if we assume no mass loss in progenitors with luminosities below the minimum WR star luminosity. We find that Type Ic SNe become more common as metallicity increases, and that the vast majority of progenitors of Type Ib SNe must be transparent-wind stripped-envelope stars. We find several models with pre-collapse CO-masses of up to $\sim 30 M_{\odot}$ may form $\sim 3 M_{\odot}$ BHs in fallback SNe. This may carry important consequences for our understanding of SNe, binary BH and NS systems, X-ray binary systems and gravitational wave transients. 30 pages, 20 figures, submitted to Astronomy & Astrophysics |
| وصف الملف: | application/pdf |
| تدمد: | 1432-0746 0004-6361 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b26feb5e5f6a8dc97199574d967fdb54 https://doi.org/10.1051/0004-6361/202243519 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....b26feb5e5f6a8dc97199574d967fdb54 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14320746 00046361 |
|---|