Cosmic nucleosynthesis: A multi-messenger challenge

Diehl, R.; Korn, A.; Leibundgut, B.; Lugaro, Maria; Wallner, A.

doi:10.1016/j.ppnp.2022.103983

Cited by 22 publications

(10 citation statements)

References 415 publications

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“…This has been only a quick survey of direct observational features related to individual nucleosynthesis sites; for a more detailed discussion of all these aspects, see a parallel review by Diehl et al (2022). Here, we want to focus more on observations of old stars as witnesses for integrated nucleosynthesis contributions as a function of galactic evolution time.…”

Section: Abundance Observations Of Individual Astrophysical Sitesmentioning

confidence: 99%

Origin of the elements

Arcones

Thielemann

2022

Astron Astrophys Rev

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What is the origin of the oxygen we breathe, the hydrogen and oxygen (in form of water H2O) in rivers and oceans, the carbon in all organic compounds, the silicon in electronic hardware, the calcium in our bones, the iron in steel, silver and gold in jewels, the rare earths utilized, e.g. in magnets or lasers, lead or lithium in batteries, and also of naturally occurring uranium and plutonium? The answer lies in the skies. Astrophysical environments from the Big Bang to stars and stellar explosions are the cauldrons where all these elements are made. The papers by Burbidge (Rev Mod Phys 29:547–650, 1957) and Cameron (Publ Astron Soc Pac 69:201, 1957), as well as precursors by Bethe, von Weizsäcker, Hoyle, Gamow, and Suess and Urey provided a very basic understanding of the nucleosynthesis processes responsible for their production, combined with nuclear physics input and required environment conditions such as temperature, density and the overall neutron/proton ratio in seed material. Since then a steady stream of nuclear experiments and nuclear structure theory, astrophysical models of the early universe as well as stars and stellar explosions in single and binary stellar systems has led to a deeper understanding. This involved improvements in stellar models, the composition of stellar wind ejecta, the mechanism of core-collapse supernovae as final fate of massive stars, and the transition (as a function of initial stellar mass) from core-collapse supernovae to hypernovae and long duration gamma-ray bursts (accompanied by the formation of a black hole) in case of single star progenitors. Binary stellar systems give rise to nova explosions, X-ray bursts, type Ia supernovae, neutron star, and neutron star–black hole mergers. All of these events (possibly with the exception of X-ray bursts) eject material with an abundance composition unique to the specific event and lead over time to the evolution of elemental (and isotopic) abundances in the galactic gas and their imprint on the next generation of stars. In the present review, we want to give a modern overview of the nucleosynthesis processes involved, their astrophysical sites, and their impact on the evolution of galaxies.

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Section: Abundance Observations Of Individual Astrophysical Sitesmentioning

confidence: 99%

Origin of the elements

Arcones

Thielemann

2022

Astron Astrophys Rev

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“…So there are suggestions that the ratio of these two SLRs 26 Al and 60 Fe can be an important indicator of the stellar population in the star-forming region. The γ ray observations show that the flux ratio of 60 Fe/ 26 Al is 0.4 , which limits the steady-state mass ratio for 60 Fe/ 26 Al to be < 0.9 [11]. Figure 3 shows the trend of this ratio with the distance from the galactic center.…”

Section: Resultsmentioning

confidence: 99%

“…The 26 Al and 60 Fe can be synthesised inside two different evolutionary phases of the massive stars [11]. So there are suggestions that the ratio of these two SLRs 26 Al and 60 Fe can be an important indicator of the stellar population in the star-forming region.…”

Section: Resultsmentioning

confidence: 99%

Short-lived Radionuclides in the Milky Way Galaxy

Kaur¹

2023

EPJ Web Conf.

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The short-lived radionuclides (SLRs) have a half-life ≤ 100 Myr. The γ-ray observations and excess abundance of their daughter nuclides in various meteoritic phases confirm the existence of SLRs in the Galaxy and early solar system (ESS), respectively. In this work, we have developed Galactic Chemical Evolution (GCE) models for SLRs, 26Al, and 60Fe along with 36Cl, 41Ca, and 53Mn. These models predict the temporal and spatial evolution of SLR abundance trends in the Galaxy from 2-18 kpc. The abundance of two SLRs, 26Al, and 60Fe, are investigated further, as their γ-ray observations are available for comparison with the model predictions. The predictions for the abundance per unit area for each ring show the decreases from the inner to outer regions of the Galaxy. The GCE predictions for the total mass of alive 26Al, and 60Fe in 2-18 kpc of the Galaxy at present time are 0.2 M⊙ and 0.08 M⊙, respectively.

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“…Several indications support the SN origin of the 60 Fe [39,40]. However, there is also the possibility of 60 Fe being formed in asymptotic giant branch (AGB) stars [41][42][43] (for a recent review on cosmic nucleosynthesis we also refer to Diehl et al [44]). Despite of a lower nucleosynthesis yield, they could be the origin of the observed 60 Fe, as well.…”

Section: Mnmentioning

confidence: 99%

“…more than 4.5 Gyr ago. The fact that stellar nucleosynthesis still occurs in our Galaxy has been proven by the observation of γ -radiation from radioactive nuclei, like 26 Al, 60 Fe, or 44 Ti (e.g. [1,2]).…”

Section: Introductionmentioning

confidence: 99%

Recent nucleosynthesis in the solar neighbourhood, detected with live radionuclides

Korschinek

2023

Eur. Phys. J. A

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In this article we try to summarize all information, gathered in the last three decades, on short-lived (order of Myr) radionuclides found in the Solar System with interstellar origin, most probably due to stellar processes like supernovae. The most important isotope is $$^{60}$$ 60 Fe, but we discuss also information on $$^{26}$$ 26 Al, $$^{244}$$ 244 Pu and $$^{53}$$ 53 Mn. We describe the environment of the Solar System during the past $$\approx 10$$ ≈ 10 Myr as well as the likely locations where the supernovae occured. Confirming evidence has been found in the composition and energy distribution of galactic cosmic rays. Finally, we discuss the effects that the recent supernova activity might have had on Earth’s climate and biosphere.

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Cosmic nucleosynthesis: A multi-messenger challenge

Cited by 22 publications

References 415 publications

Origin of the elements

Origin of the elements

Short-lived Radionuclides in the Milky Way Galaxy

Recent nucleosynthesis in the solar neighbourhood, detected with live radionuclides

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