Solar system genealogy revealed by extinct short-lived radionuclides in meteorites

@article{Gounelle2012SolarSG,
  title={Solar system genealogy revealed by extinct short-lived radionuclides in meteorites},
  author={Matthieu Gounelle and Georges Meynet},
  journal={Astronomy and Astrophysics},
  year={2012},
  volume={545}
}
Context. Little is known about the stellar environment and the genealogy of our solar system. Short-lived radionuclides (SLRs, mean lifetime τ shorter than 100 Myr) that were present in the solar protoplanetary disk 4.56 Gyr ago could potentially provide insight into that key aspect of our history, were their origin understood.Aims. Previous models failed to provide a reasonable explanation of the abundance of two key SLRs, 26 Al (τ 26  = 1.1 Myr) and 60 Fe (τ 60  = 3.7 Myr), at the birth of… 

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References

SHOWING 1-10 OF 86 REFERENCES

The Origin of Short-lived Radionuclides and the Astrophysical Environment of Solar System Formation

Based on early solar system abundances of short-lived radionuclides (SRs), such as 26Al (T1/2 = 0.74 Myr) and 60Fe (T1/2 = 1.5 Myr), it is often asserted that the Sun was born in a large stellar

Short-Lived Radioactivities and the Birth of the sun

Now extinct short-lived radioactive isotopes were apparently extant in the early solar system. Their abundances can be inferred from isotopic effects in their daughter nuclei in primitive meteorites,

Short-Lived Nuclei in the Early Solar System: A Low Mass Stellar Source?

Abstract We discuss possible stellar origins of short-lived radioactive nuclei with meanlife τ ≤ 100 Myr, which were shown to be alive in the Early Solar System (ESS). We first review current ideas

A RUNAWAY WOLF–RAYET STAR AS THE ORIGIN OF 26Al IN THE EARLY SOLAR SYSTEM

Establishing the origin of the short-lived radionuclide (SLR) 26Al, which was present in refractory inclusions in primitive meteorites, has profound implications for the astrophysical context of

26Al AND THE FORMATION OF THE SOLAR SYSTEM FROM A MOLECULAR CLOUD CONTAMINATED BY WOLF–RAYET WINDS

In agreement with previous work, we show that the presence of the short-lived radionuclide (SLR) 26Al in the early solar system was unlikely (less than 2% a priori probability) to be the result of

The role of massive AGB stars in the early solar system composition

Abstract— We demonstrate that a massive asymptotic giant branch (AGB) star is a good candidate as the main source of short‐lived radionuclides in the early solar system. Recent identification of

An Interstellar Origin for the Beryllium 10 in Calcium-rich, Aluminum-rich Inclusions

Beryllium 10 is a short-lived radionuclide (t1/2 = 1.5 Myr) that was incorporated live into calcium-rich, aluminum-rich inclusions (CAIs) at the birth of our solar system. Beryllium 10 is unique

FORMATION OF THE SHORT-LIVED RADIONUCLIDE 36Cl IN THE PROTOPLANETARY DISK DURING LATE-STAGE IRRADIATION OF A VOLATILE-RICH RESERVOIR

Short-lived radionuclides (SLRs) in the early solar system provide fundamental insight into protoplanetary disk evolution. We measured the 36Cl–36S-isotope abundance in wadalite (<15 μm), a secondary

The Initial Abundance of 60Fe in the Solar System

60Fe, which decays to radiogenic 60Ni (60Ni*), is a now extinct radionuclide. 60Fe is produced only in stars and thus provides a constraint on the stellar contribution to solar system radionuclides.
...