The Supernova Triggered Formation and Enrichment of Our Solar System
arXiv:1111.0012 · doi:10.1088/0004-637X/745/1/22
Abstract
We investigate the enrichment of the pre-solar cloud core with short lived radionuclides (SLRs), especially 26Al. The homogeneity and the surprisingly small spread in the ratio 26Al/27Al observed in the overwhelming majority of calcium-aluminium-rich inclusions (CAIs) in a vast variety of primitive chondritic meteorites places strong constraints on the formation of the the solar system. Freshly synthesized radioactive 26Al has to be included and well mixed within 20kyr. After discussing various scenarios including X-winds, AGB stars and Wolf-Rayet stars, we come to the conclusion that triggering the collapse of a cold cloud core by a nearby supernova is the most promising scenario. We then narrow down the vast parameter space by considering the pre-explosion survivability of such a clump as well as the cross-section necessary for sufficient enrichment. We employ numerical simulations to address the mixing of the radioactively enriched SN gas with the pre-existing gas and the forced collapse within 20kyr. We show that a cold clump of 10Msun at a distance of 5pc can be sufficiently enriched in 26Al and triggered into collapse fast enough - within 18kyr after encountering the supernova shock - for a range of different metallicities and progenitor masses, even if the enriched material is assumed to be distributed homogeneously in the entire supernova bubble. In summary, we envision an environment for the birth place of the Solar System 4.567Gyr ago similar to the situation of the pillars in M16 nowadays, where molecular cloud cores adjacent to an HII region will be hit by a supernova explosion in the future. We show that the triggered collapse and formation of the Solar System as well as the required enrichment with radioactive 26Al are possible in this scenario.
12 pages, 8 figures, accepted for publication in ApJ. Resolution of most figures degraded to fit within arXiv size limits. A full resolution version is available at http://www.usm.uni-muenchen.de/~gritschm/Gritschneder_2011_sun.pdf
References in corpus (19)
- Filamentary structure of star-forming complexes
- Analytical protostellar disk models 1: the effect of internal dissipation and surface irradiation on the structure of disks and the location of the snow line around Sun-like stars
- The Magnetic Rayleigh-Taylor Instability in Three Dimensions
- Driving Turbulence and Triggering Star Formation by Ionizing Radiation
- Radiation-magnetohydrodynamic simulations of HII regions and their associated PDRs in turbulent molecular clouds
- A perspective from extinct radionuclides on a Young Stellar Object: The Sun and its accretion disk
- Magnetohydronamic Evolution of HII Regions in Molecular Clouds: Simulation Methodology, Tests, and Uniform Media
- Detailed Numerical Simulations on the Formation of Pillars around HII-regions
- iVINE - Ionization in the parallel tree/SPH code VINE: First results on the observed age-spread around O-stars
- Fragmentation of Shocked Flows: Gravity, Turbulence and Cooling
- Radioactive Probes of the Supernova-Contaminated Solar Nebula: Evidence that the Sun was Born in a Cluster
- Simultaneous Triggered Collapse of the Presolar Dense Cloud Core and Injection of Short-Lived Radioisotopes by a Supernova Shock Wave
- Spitzer reveals what's behind Orion's Bar
- Injection of Short-Lived Radionuclides into the Early Solar System from a Faint Supernova with Mixing-Fallback
- Supernova Propagation And Cloud Enrichment: A new model for the origin of Fe in the early solar system
- On the likelihood of supernova enrichment of protoplanetary disks
- Who Pulled the Trigger: a Supernova or an AGB Star?
- Evolution of the Solar Nebula. IX. Gradients in the Spatial Heterogeneity of the Short-Lived Radioisotopes Fe and Al and the Stable Oxygen Isotopes
- Measuring 26Al and 60Fe in the Galaxy
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- Feedback in Clouds II: UV Photoionisation and the first supernova in a massive cloud
- 26Al in the Early Solar System: Not so Unusual After All
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- Short-lived radioisotopes in meteorites from Galactic-scale correlated star formation
- Triggered Star Formation Inside the Shell of a Wolf-Rayet Bubble as the origin of the Solar System
- Kinematic structure of massive star-forming regions - I. Accretion along filaments
- Isotopic enrichment of forming planetary systems from supernova pollution
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- Supernova enrichment and dynamical histories of solar-type stars in clusters
- Triggering Collapse of the Presolar Dense Cloud Core and Injecting Short-Lived Radioisotopes with a Shock Wave. III. Rotating Three Dimensional Cloud Cores
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- Hoinga: A supernova remnant discovered in the SRG/eROSITA All-Sky Survey eRASS1
- Triggering Collapse of the Presolar Dense Cloud Core and Injecting Short-Lived Radioisotopes with a Shock Wave. II. Varied Shock Wave and Cloud Core Parameters
- Radioactive nuclei in the early Solar System: analysis of the 15 isotopes produced by core-collapse supernovae
- Chemical enrichment of the pre-solar cloud by supernova dust grains
- On the Number of Stars in the Sun's Birth Cluster
- Aluminum-26 Enrichment in the Surface of Protostellar Disks Due to Protostellar Cosmic Rays
- Did the Solar System form in a sequential triggered star formation event?
- Insights on the Sun birth environment in the context of star-cluster formation in hub-filament systems
- The role of theta Oph in the formation and evolution of the Pipe Nebula - is star formation ever isolated?
- Illuminating a tadpole's metamorphosis III: quantifying past and present environmental impact
- The interaction of hydrodynamic shocks with self-gravitating clouds
- Timescales of Solar System Formation Based on Al-Ti Isotope Correlation by Supernova Ejecta
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