First Star-Forming Structures in Fuzzy Cosmic Filaments
© 2019 American Physical Society. In hierarchical models of structure formation, the first galaxies form in low-mass dark matter potential wells, probing the behavior of dark matter on kiloparsec scales. Even though these objects are below the detection threshold of current telescopes, future missio...
| Main Authors: | , , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society (APS)
2021
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| Online Access: | https://hdl.handle.net/1721.1/133286 |
| _version_ | 1826193880950767616 |
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| author | Mocz, Philip Fialkov, Anastasia Vogelsberger, Mark Becerra, Fernando Amin, Mustafa A Bose, Sownak Boylan-Kolchin, Michael Chavanis, Pierre-Henri Hernquist, Lars Lancaster, Lachlan Marinacci, Federico Robles, Victor H Zavala, Jesús |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Mocz, Philip Fialkov, Anastasia Vogelsberger, Mark Becerra, Fernando Amin, Mustafa A Bose, Sownak Boylan-Kolchin, Michael Chavanis, Pierre-Henri Hernquist, Lars Lancaster, Lachlan Marinacci, Federico Robles, Victor H Zavala, Jesús |
| author_sort | Mocz, Philip |
| collection | MIT |
| description | © 2019 American Physical Society. In hierarchical models of structure formation, the first galaxies form in low-mass dark matter potential wells, probing the behavior of dark matter on kiloparsec scales. Even though these objects are below the detection threshold of current telescopes, future missions will open an observational window into this emergent world. In this Letter, we investigate how the first galaxies are assembled in a "fuzzy" dark matter (FDM) cosmology where dark matter is an ultralight ∼10-22 eV boson and the primordial stars are expected to form along dense dark matter filaments. Using a first-of-its-kind cosmological hydrodynamical simulation, we explore the interplay between baryonic physics and unique wavelike features inherent to FDM. In our simulation, the dark matter filaments show coherent interference patterns on the boson de Broglie scale and develop cylindrical solitonlike cores, which are unstable under gravity and collapse into kiloparsec-scale spherical solitons. Features of the dark matter distribution are largely unaffected by the baryonic feedback. On the contrary, the distributions of gas and stars, which do form along the entire filament, exhibit central cores imprinted by dark matter - a smoking gun signature of FDM. |
| first_indexed | 2024-09-23T09:46:26Z |
| format | Article |
| id | mit-1721.1/133286 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T09:46:26Z |
| publishDate | 2021 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/1332862023-02-24T19:55:54Z First Star-Forming Structures in Fuzzy Cosmic Filaments Mocz, Philip Fialkov, Anastasia Vogelsberger, Mark Becerra, Fernando Amin, Mustafa A Bose, Sownak Boylan-Kolchin, Michael Chavanis, Pierre-Henri Hernquist, Lars Lancaster, Lachlan Marinacci, Federico Robles, Victor H Zavala, Jesús Massachusetts Institute of Technology. Department of Physics MIT Kavli Institute for Astrophysics and Space Research © 2019 American Physical Society. In hierarchical models of structure formation, the first galaxies form in low-mass dark matter potential wells, probing the behavior of dark matter on kiloparsec scales. Even though these objects are below the detection threshold of current telescopes, future missions will open an observational window into this emergent world. In this Letter, we investigate how the first galaxies are assembled in a "fuzzy" dark matter (FDM) cosmology where dark matter is an ultralight ∼10-22 eV boson and the primordial stars are expected to form along dense dark matter filaments. Using a first-of-its-kind cosmological hydrodynamical simulation, we explore the interplay between baryonic physics and unique wavelike features inherent to FDM. In our simulation, the dark matter filaments show coherent interference patterns on the boson de Broglie scale and develop cylindrical solitonlike cores, which are unstable under gravity and collapse into kiloparsec-scale spherical solitons. Features of the dark matter distribution are largely unaffected by the baryonic feedback. On the contrary, the distributions of gas and stars, which do form along the entire filament, exhibit central cores imprinted by dark matter - a smoking gun signature of FDM. 2021-10-27T19:51:56Z 2021-10-27T19:51:56Z 2019 2021-06-24T13:29:14Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/133286 en 10.1103/PHYSREVLETT.123.141301 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society (APS) APS |
| spellingShingle | Mocz, Philip Fialkov, Anastasia Vogelsberger, Mark Becerra, Fernando Amin, Mustafa A Bose, Sownak Boylan-Kolchin, Michael Chavanis, Pierre-Henri Hernquist, Lars Lancaster, Lachlan Marinacci, Federico Robles, Victor H Zavala, Jesús First Star-Forming Structures in Fuzzy Cosmic Filaments |
| title | First Star-Forming Structures in Fuzzy Cosmic Filaments |
| title_full | First Star-Forming Structures in Fuzzy Cosmic Filaments |
| title_fullStr | First Star-Forming Structures in Fuzzy Cosmic Filaments |
| title_full_unstemmed | First Star-Forming Structures in Fuzzy Cosmic Filaments |
| title_short | First Star-Forming Structures in Fuzzy Cosmic Filaments |
| title_sort | first star forming structures in fuzzy cosmic filaments |
| url | https://hdl.handle.net/1721.1/133286 |
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