The Hestia project: simulations of the Local Group
© 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. We present the hestia simulation suite: High-resolutions Environmental Simulations of The Immediate Area, a set of cosmological simulations of the Local Group. Initial conditions constrained by the...
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| Format: | Article |
| Language: | English |
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Oxford University Press (OUP)
2022
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| Online Access: | https://hdl.handle.net/1721.1/142401 |
| _version_ | 1811079504898031616 |
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| author | Libeskind, Noam I Carlesi, Edoardo Grand, Robert JJ Khalatyan, Arman Knebe, Alexander Pakmor, Ruediger Pilipenko, Sergey Pawlowski, Marcel S Sparre, Martin Tempel, Elmo Wang, Peng Courtois, Hélène M Gottlöber, Stefan Hoffman, Yehuda Minchev, Ivan Pfrommer, Christoph Sorce, Jenny G Springel, Volker Steinmetz, Matthias Tully, R Brent Vogelsberger, Mark Yepes, Gustavo |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Libeskind, Noam I Carlesi, Edoardo Grand, Robert JJ Khalatyan, Arman Knebe, Alexander Pakmor, Ruediger Pilipenko, Sergey Pawlowski, Marcel S Sparre, Martin Tempel, Elmo Wang, Peng Courtois, Hélène M Gottlöber, Stefan Hoffman, Yehuda Minchev, Ivan Pfrommer, Christoph Sorce, Jenny G Springel, Volker Steinmetz, Matthias Tully, R Brent Vogelsberger, Mark Yepes, Gustavo |
| author_sort | Libeskind, Noam I |
| collection | MIT |
| description | © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. We present the hestia simulation suite: High-resolutions Environmental Simulations of The Immediate Area, a set of cosmological simulations of the Local Group. Initial conditions constrained by the observed peculiar velocity of nearby galaxies are employed to accurately simulate the local cosmography. Halo pairs that resemble the Local Group are found in low resolutions constrained, dark matter only simulations, and selected for higher resolution magneto hydrodynamic simulation using the arepo code. Baryonic physics follows the auriga model of galaxy formation. The simulations contain a high-resolution region of 3-5 Mpc in radius from the Local Group mid-point embedded in the correct cosmographic landscape. Within this region, a simulated Local Group consisting of a Milky Way and Andromeda like galaxy forms, whose description is in excellent agreement with observations. The simulated Local Group galaxies resemble the Milky Way and Andromeda in terms of their halo mass, mass ratio, stellar disc mass, morphology separation, relative velocity, rotation curves, bulge-disc morphology, satellite galaxy stellar mass function, satellite radial distribution, and in some cases, the presence of a Magellanic cloud like object. Because these simulations properly model the Local Group in their cosmographic context, they provide a testing ground for questions where environment is thought to play an important role. |
| first_indexed | 2024-09-23T11:16:07Z |
| format | Article |
| id | mit-1721.1/142401 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T11:16:07Z |
| publishDate | 2022 |
| publisher | Oxford University Press (OUP) |
| record_format | dspace |
| spelling | mit-1721.1/1424012023-07-28T20:33:44Z The Hestia project: simulations of the Local Group Libeskind, Noam I Carlesi, Edoardo Grand, Robert JJ Khalatyan, Arman Knebe, Alexander Pakmor, Ruediger Pilipenko, Sergey Pawlowski, Marcel S Sparre, Martin Tempel, Elmo Wang, Peng Courtois, Hélène M Gottlöber, Stefan Hoffman, Yehuda Minchev, Ivan Pfrommer, Christoph Sorce, Jenny G Springel, Volker Steinmetz, Matthias Tully, R Brent Vogelsberger, Mark Yepes, Gustavo Massachusetts Institute of Technology. Department of Physics © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. We present the hestia simulation suite: High-resolutions Environmental Simulations of The Immediate Area, a set of cosmological simulations of the Local Group. Initial conditions constrained by the observed peculiar velocity of nearby galaxies are employed to accurately simulate the local cosmography. Halo pairs that resemble the Local Group are found in low resolutions constrained, dark matter only simulations, and selected for higher resolution magneto hydrodynamic simulation using the arepo code. Baryonic physics follows the auriga model of galaxy formation. The simulations contain a high-resolution region of 3-5 Mpc in radius from the Local Group mid-point embedded in the correct cosmographic landscape. Within this region, a simulated Local Group consisting of a Milky Way and Andromeda like galaxy forms, whose description is in excellent agreement with observations. The simulated Local Group galaxies resemble the Milky Way and Andromeda in terms of their halo mass, mass ratio, stellar disc mass, morphology separation, relative velocity, rotation curves, bulge-disc morphology, satellite galaxy stellar mass function, satellite radial distribution, and in some cases, the presence of a Magellanic cloud like object. Because these simulations properly model the Local Group in their cosmographic context, they provide a testing ground for questions where environment is thought to play an important role. 2022-05-06T16:58:09Z 2022-05-06T16:58:09Z 2020 2022-05-06T16:52:23Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/142401 Libeskind, Noam I, Carlesi, Edoardo, Grand, Robert JJ, Khalatyan, Arman, Knebe, Alexander et al. 2020. "The Hestia project: simulations of the Local Group." Monthly Notices of the Royal Astronomical Society, 498 (2). en 10.1093/MNRAS/STAA2541 Monthly Notices of the Royal Astronomical Society Attribution-NonCommercial-ShareAlike 4.0 International https://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Oxford University Press (OUP) arXiv |
| spellingShingle | Libeskind, Noam I Carlesi, Edoardo Grand, Robert JJ Khalatyan, Arman Knebe, Alexander Pakmor, Ruediger Pilipenko, Sergey Pawlowski, Marcel S Sparre, Martin Tempel, Elmo Wang, Peng Courtois, Hélène M Gottlöber, Stefan Hoffman, Yehuda Minchev, Ivan Pfrommer, Christoph Sorce, Jenny G Springel, Volker Steinmetz, Matthias Tully, R Brent Vogelsberger, Mark Yepes, Gustavo The Hestia project: simulations of the Local Group |
| title | The Hestia project: simulations of the Local Group |
| title_full | The Hestia project: simulations of the Local Group |
| title_fullStr | The Hestia project: simulations of the Local Group |
| title_full_unstemmed | The Hestia project: simulations of the Local Group |
| title_short | The Hestia project: simulations of the Local Group |
| title_sort | hestia project simulations of the local group |
| url | https://hdl.handle.net/1721.1/142401 |
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