AEOS: Transport of Metals from Minihalos following Population III Stellar Feedback
We investigate how stellar feedback from the first stars (Population III) distributes metals through the interstellar and intergalactic medium using the star-by-star cosmological hydrodynamics simulation, A eos . We find that energy injected from the supernovae (SNe) of the first stars is enough to...
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2025-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/ada3c1 |
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| author | Jennifer Mead Kaley Brauer Greg L. Bryan Mordecai-Mark Mac Low Alexander P. Ji John H. Wise Andrew Emerick Eric P. Andersson Anna Frebel Benoit Côté |
| author_facet | Jennifer Mead Kaley Brauer Greg L. Bryan Mordecai-Mark Mac Low Alexander P. Ji John H. Wise Andrew Emerick Eric P. Andersson Anna Frebel Benoit Côté |
| author_sort | Jennifer Mead |
| collection | DOAJ |
| description | We investigate how stellar feedback from the first stars (Population III) distributes metals through the interstellar and intergalactic medium using the star-by-star cosmological hydrodynamics simulation, A eos . We find that energy injected from the supernovae (SNe) of the first stars is enough to expel a majority of gas and injected metals beyond the virial radius of halos with mass M _dm ≲ 10 ^7 M _⊙ , regardless of the number of SNe. This prevents self-enrichment and results in a nonmonotonic increase in metallicity at early times. Most minihalos ( M _dm ≳ 10 ^5 M _⊙ ) do not retain significant fractions of the yields produced within their virial radii until they have grown to halo masses of M _dm ≳ 10 ^7 M _⊙ . The loss of metals to regions well beyond the virial radius delays the onset of enriched star formation and extends the period that Population III star formation can persist. We also explore the contributions of different nucleosynthetic channels to 10 individual elements. On the timescale of the simulation (lowest redshift z = 14.3), enrichment is dominated by core-collapse supernovae for all elements, but with a significant contribution from asymptotic giant branch winds to the s -process elements, which are normally thought to only be important at late times. In this work, we establish important mechanisms for early chemical enrichment, which allows us to apply A eos in later epochs to trace the evolution of enrichment during the complete transition from Population III to Population II stars. |
| format | Article |
| id | doaj-art-6eb06c5d699143eeaf6229fa6ae87308 |
| institution | Kabale University |
| issn | 1538-4357 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
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| series | The Astrophysical Journal |
| spelling | doaj-art-6eb06c5d699143eeaf6229fa6ae873082025-02-04T12:01:40ZengIOP PublishingThe Astrophysical Journal1538-43572025-01-0198016210.3847/1538-4357/ada3c1AEOS: Transport of Metals from Minihalos following Population III Stellar FeedbackJennifer Mead0https://orcid.org/0009-0006-4744-2350Kaley Brauer1https://orcid.org/0000-0002-8810-858XGreg L. Bryan2https://orcid.org/0000-0003-2630-9228Mordecai-Mark Mac Low3https://orcid.org/0000-0003-0064-4060Alexander P. Ji4https://orcid.org/0000-0002-4863-8842John H. Wise5https://orcid.org/0000-0003-1173-8847Andrew Emerick6https://orcid.org/0000-0003-2807-328XEric P. Andersson7https://orcid.org/0000-0003-3479-4606Anna Frebel8https://orcid.org/0000-0002-2139-7145Benoit Côté9https://orcid.org/0000-0002-9986-8816Department of Astronomy, Columbia University , New York, NY 10027, USACenter for Astrophysics ∣ Harvard & Smithsonian , Cambridge, MA 02138, USADepartment of Astronomy, Columbia University , New York, NY 10027, USA; Center for Computational Astrophysics , Flatiron Institute, 162 5th Ave, New York, NY 10010, USADepartment of Astronomy, Columbia University , New York, NY 10027, USA; Department of Astrophysics , American Museum of Natural History, New York, NY 10024, USADepartment of Astronomy & Astrophysics, University of Chicago , 5640 S Ellis Ave, Chicago, IL 60637, USA; Kavli Institute for Cosmological Physics, University of Chicago , Chicago, IL 60637, USACenter for Relativistic Astrophysics, School of Physics, Georgia Institute of Technology , Atlanta, GA 30332, USACarnegie Observatories , Pasadena, CA 91101, USADepartment of Astrophysics , American Museum of Natural History, New York, NY 10024, USADepartment of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology , Cambridge, MA 02139, USADepartment of Physics and Astronomy, University of Victoria , Victoria, BC, V8P 5C2, CanadaWe investigate how stellar feedback from the first stars (Population III) distributes metals through the interstellar and intergalactic medium using the star-by-star cosmological hydrodynamics simulation, A eos . We find that energy injected from the supernovae (SNe) of the first stars is enough to expel a majority of gas and injected metals beyond the virial radius of halos with mass M _dm ≲ 10 ^7 M _⊙ , regardless of the number of SNe. This prevents self-enrichment and results in a nonmonotonic increase in metallicity at early times. Most minihalos ( M _dm ≳ 10 ^5 M _⊙ ) do not retain significant fractions of the yields produced within their virial radii until they have grown to halo masses of M _dm ≳ 10 ^7 M _⊙ . The loss of metals to regions well beyond the virial radius delays the onset of enriched star formation and extends the period that Population III star formation can persist. We also explore the contributions of different nucleosynthetic channels to 10 individual elements. On the timescale of the simulation (lowest redshift z = 14.3), enrichment is dominated by core-collapse supernovae for all elements, but with a significant contribution from asymptotic giant branch winds to the s -process elements, which are normally thought to only be important at late times. In this work, we establish important mechanisms for early chemical enrichment, which allows us to apply A eos in later epochs to trace the evolution of enrichment during the complete transition from Population III to Population II stars.https://doi.org/10.3847/1538-4357/ada3c1Population III starsHydrodynamical simulationsChemical enrichmentGalaxy chemical evolutionDwarf galaxiesStellar feedback |
| spellingShingle | Jennifer Mead Kaley Brauer Greg L. Bryan Mordecai-Mark Mac Low Alexander P. Ji John H. Wise Andrew Emerick Eric P. Andersson Anna Frebel Benoit Côté AEOS: Transport of Metals from Minihalos following Population III Stellar Feedback The Astrophysical Journal Population III stars Hydrodynamical simulations Chemical enrichment Galaxy chemical evolution Dwarf galaxies Stellar feedback |
| title | AEOS: Transport of Metals from Minihalos following Population III Stellar Feedback |
| title_full | AEOS: Transport of Metals from Minihalos following Population III Stellar Feedback |
| title_fullStr | AEOS: Transport of Metals from Minihalos following Population III Stellar Feedback |
| title_full_unstemmed | AEOS: Transport of Metals from Minihalos following Population III Stellar Feedback |
| title_short | AEOS: Transport of Metals from Minihalos following Population III Stellar Feedback |
| title_sort | aeos transport of metals from minihalos following population iii stellar feedback |
| topic | Population III stars Hydrodynamical simulations Chemical enrichment Galaxy chemical evolution Dwarf galaxies Stellar feedback |
| url | https://doi.org/10.3847/1538-4357/ada3c1 |
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