Common Envelope Jet Supernova r -process Yields Can Reproduce [Eu/Fe] Abundance Evolution in the Galaxy

Aldana Grichener; Chiaki Kobayashi; Noam Soker

doi:10.3847/2041-8213/ac4f68

Common Envelope Jet Supernova r -process Yields Can Reproduce [Eu/Fe] Abundance Evolution in the Galaxy

Aldana Grichener, Chiaki Kobayashi, Noam Soker

Research output: Contribution to journal › Article › peer-review

15 Downloads (Pure)

Abstract

We use a numerical Galactic chemical evolution model and find that the common envelope jet supernova (CEJSN) r-process scenario can account for both the very early average ratio of europium to iron and its evolution at later times in the the Milky Way. In the CEJSN scenario a neutron star (NS) spirals in inside a red supergiant (RSG) star all the way to the core and destroys it. According to this scenario r-process isotopes are nucleosynthesized inside neutron-rich jets that the accretion disk around the NS launches inside the core. The merger of an NS with an RSG core already takes place in the very young Galaxy. We conclude that CEJSNe can be a major contributor to r-process nucleosynthesis.

Original language	English
Article number	L9
Number of pages	4
Journal	Astrophysical Journal Letters
Volume	926
Issue number	2
DOIs	https://doi.org/10.3847/2041-8213/ac4f68
Publication status	Published - 16 Feb 2022

Keywords

330
High-Energy Phenomena and Fundamental Physics

Access to Document

10.3847/2041-8213/ac4f68Licence: CC BY

Final_Published_Version
© 2022. The Author(s). Published by the American Astronomical Society. This work is licenced under the terms of the Creative Commons Attribution 4.0 licence. https://creativecommons.org/licenses/by/4.0/
Final published version, 682 KBLicence: CC BY

Cite this

@article{17f00d5b0deb47c295409f09cd02c698,

title = "Common Envelope Jet Supernova r -process Yields Can Reproduce [Eu/Fe] Abundance Evolution in the Galaxy",

abstract = "We use a numerical Galactic chemical evolution model and find that the common envelope jet supernova (CEJSN) r-process scenario can account for both the very early average ratio of europium to iron and its evolution at later times in the the Milky Way. In the CEJSN scenario a neutron star (NS) spirals in inside a red supergiant (RSG) star all the way to the core and destroys it. According to this scenario r-process isotopes are nucleosynthesized inside neutron-rich jets that the accretion disk around the NS launches inside the core. The merger of an NS with an RSG core already takes place in the very young Galaxy. We conclude that CEJSNe can be a major contributor to r-process nucleosynthesis.",

keywords = "330, High-Energy Phenomena and Fundamental Physics",

author = "Aldana Grichener and Chiaki Kobayashi and Noam Soker",

note = "{\textcopyright} 2022. The Author(s). Published by the American Astronomical Society. This work is licenced under the terms of the Creative Commons Attribution 4.0 licence. https://creativecommons.org/licenses/by/4.0/",

year = "2022",

month = feb,

day = "16",

doi = "10.3847/2041-8213/ac4f68",

language = "English",

volume = "926",

journal = "Astrophysical Journal Letters",

issn = "2041-8205",

publisher = "IOP Publishing Ltd.",

number = "2",

}

TY - JOUR

T1 - Common Envelope Jet Supernova r -process Yields Can Reproduce [Eu/Fe] Abundance Evolution in the Galaxy

AU - Grichener, Aldana

AU - Kobayashi, Chiaki

AU - Soker, Noam

N1 - © 2022. The Author(s). Published by the American Astronomical Society. This work is licenced under the terms of the Creative Commons Attribution 4.0 licence. https://creativecommons.org/licenses/by/4.0/

PY - 2022/2/16

Y1 - 2022/2/16

N2 - We use a numerical Galactic chemical evolution model and find that the common envelope jet supernova (CEJSN) r-process scenario can account for both the very early average ratio of europium to iron and its evolution at later times in the the Milky Way. In the CEJSN scenario a neutron star (NS) spirals in inside a red supergiant (RSG) star all the way to the core and destroys it. According to this scenario r-process isotopes are nucleosynthesized inside neutron-rich jets that the accretion disk around the NS launches inside the core. The merger of an NS with an RSG core already takes place in the very young Galaxy. We conclude that CEJSNe can be a major contributor to r-process nucleosynthesis.

AB - We use a numerical Galactic chemical evolution model and find that the common envelope jet supernova (CEJSN) r-process scenario can account for both the very early average ratio of europium to iron and its evolution at later times in the the Milky Way. In the CEJSN scenario a neutron star (NS) spirals in inside a red supergiant (RSG) star all the way to the core and destroys it. According to this scenario r-process isotopes are nucleosynthesized inside neutron-rich jets that the accretion disk around the NS launches inside the core. The merger of an NS with an RSG core already takes place in the very young Galaxy. We conclude that CEJSNe can be a major contributor to r-process nucleosynthesis.

KW - 330

KW - High-Energy Phenomena and Fundamental Physics

U2 - 10.3847/2041-8213/ac4f68

DO - 10.3847/2041-8213/ac4f68

M3 - Article

SN - 2041-8205

VL - 926

JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

IS - 2

M1 - L9

ER -

Common Envelope Jet Supernova r -process Yields Can Reproduce [Eu/Fe] Abundance Evolution in the Galaxy

Abstract

Keywords

Access to Document

Fingerprint

Cite this