THE LOST SIBLINGS OF THE SUN

@article{Zwart2009THELS,
  title={THE LOST SIBLINGS OF THE SUN},
  author={Simon Portegies Zwart},
  journal={The Astrophysical Journal},
  year={2009},
  volume={696}
}
  • S. Zwart
  • Published 2 March 2009
  • Physics
  • The Astrophysical Journal
The anomalous chemical abundances and the structure of the Edgeworth-Kuiper belt observed in the solar system constrain the initial mass and radius of the star cluster in which the Sun was born to M 500-3000M ☉ and R 1-3 pc. When the cluster dissolved, the siblings of the Sun dispersed through the galaxy, but they remained on a similar orbit around the Galactic center. Today these stars hide among the field stars, but 10-60 of them are still present within a distance of ~100 pc. These siblings… Expand
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4
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References

SHOWING 1-10 OF 27 REFERENCES
The Cradle of the Solar System
The recent discovery of decay products of 60Fe in meteorites challenges conventional wisdom about the environment in which the Sun and planets formed. Rather than a region like the well-studied… Expand
Radioactive Probes of the Supernova-contaminated Solar Nebula: Evidence that the Sun Was Born in a Cluster
We construct a simple model for radioisotopic enrichment of the protosolar nebula by injection from a nearby supernova, based on the inverse square law for ejecta dispersion. In this parameter study,… Expand
Debris streams in the solar neighbourhood as relicts from the formation of the Milky Way
It is now generally believed that galaxies were built up through gravitational amplification of primordial fluctuations and the subsequent merging of smaller precursor structures. The stars of the… Expand
Galactic-Field IMFs of Massive Stars
Over the past years observations of young and populous star clusters have shown that the stellar IMF appears to be an invariant featureless Salpeter power-law with an exponent alpha=2.35 for stars… Expand
Two Distinct Ancient Components in the Sculptor Dwarf Spheroidal Galaxy: First Results from the Dwarf Abundances and Radial Velocities Team
We have found evidence for the presence of two distinct ancient stellar components (bothgreater than or equal to10 Gyr old) in the Sculptor dwarf spheroidal galaxy. We used the ESO Wide Field Imager… Expand
Galactic-Field Initial Mass Functions of Massive Stars
Over the past years observations of young and populous star clusters have shown that the stellar initial mass function (IMF) appears to be an invariant featureless Salpeter power law with an exponent… Expand
Disruption time scales of star clusters in different galaxies
The observed average lifetime of the population of star clusters in the Solar Neighbourhood, the Small Magellanic Cloud and in selected regions of M 51 and M 33 is compared with simple theoretical… Expand
Has the Black Hole in XTE J1118+480 Experienced an Asymmetric Natal Kick?
We explore the origin of the high Galactic latitude black hole X-ray binary XTE J1118+480 and in particular its birth location and the magnitude of the kick received by the black hole upon formation… Expand
A test of the galactic origin of gamma-ray bursts
Models in which gamma-ray bursters are young neutron stars may be difficult to reconcile with the apparently isotropic distribution of observed bursts. To justify this statement, the distribution of… Expand
Dynamics of Planetary Systems in Star Clusters
At least 10%-15% of nearby Sunlike stars have known Jupiter-mass planets. In contrast, very few planets are found in mature open and globular clusters such as the Hyades and 47 Tuc. We explore here… Expand
...
1
2
3
...