A quantification of the butterfly effect in cosmological simulations and implications for galaxy scaling relations
We study the chaotic-like behavior of cosmological simulations by quantifying how minute perturbations grow over time and manifest as macroscopic differences in galaxy properties. When we run pairs of “shadow” simulations that are identical except for random minute initial displacements to particle...
Saved in:
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article (Journal) |
| Language: | English |
| Published: |
2019 January 18
|
| In: |
The astrophysical journal
Year: 2019, Volume: 871, Issue: 1, Pages: 1-27 |
| ISSN: | 1538-4357 |
| DOI: | 10.3847/1538-4357/aaf4bb |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.3847/1538-4357/aaf4bb
|
| Author Notes: | Shy Genel, Greg L. Bryan, Volker Springel, Lars Hernquist, Dylan Nelson, Annalisa Pillepich, Rainer Weinberger, Rüdiger Pakmor, Federico Marinacci and Mark Vogelsberger |
MARC
| LEADER | 00000caa a2200000 c 4500 | ||
|---|---|---|---|
| 001 | 1811013864 | ||
| 003 | DE-627 | ||
| 005 | 20220820230403.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 220720s2019 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.3847/1538-4357/aaf4bb |2 doi | |
| 035 | |a (DE-627)1811013864 | ||
| 035 | |a (DE-599)KXP1811013864 | ||
| 035 | |a (OCoLC)1341464184 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rda | ||
| 041 | |a eng | ||
| 084 | |a 29 |2 sdnb | ||
| 100 | 1 | |a Genel, Shy |e VerfasserIn |0 (DE-588)1011974878 |0 (DE-627)660882671 |0 (DE-576)344709817 |4 aut | |
| 245 | 1 | 2 | |a A quantification of the butterfly effect in cosmological simulations and implications for galaxy scaling relations |c Shy Genel, Greg L. Bryan, Volker Springel, Lars Hernquist, Dylan Nelson, Annalisa Pillepich, Rainer Weinberger, Rüdiger Pakmor, Federico Marinacci and Mark Vogelsberger |
| 264 | 1 | |c 2019 January 18 | |
| 300 | |a 27 | ||
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a Computermedien |b c |2 rdamedia | ||
| 338 | |a Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Gesehen am 27.07.2022 | ||
| 520 | |a We study the chaotic-like behavior of cosmological simulations by quantifying how minute perturbations grow over time and manifest as macroscopic differences in galaxy properties. When we run pairs of “shadow” simulations that are identical except for random minute initial displacements to particle positions (e.g., of order ), the results diverge from each other at the individual galaxy level (while the statistical properties of the ensemble of galaxies are unchanged). After cosmological times, the global properties of pairs of “shadow” galaxies that are matched between the simulations differ from each other, generally at a level of ∼2-25%, depending on the considered physical quantity. We perform these experiments using cosmological volumes of evolved either purely with dark matter, or with baryons and star formation but no feedback, or else using the full feedback model of the IllustrisTNG project. The runs cover four resolution levels spanning a factor of 512 in mass. We find that, without feedback, the differences between shadow galaxies generally become smaller as the resolution increases—but with the IllustrisTNG model, the results mostly converge toward a “floor.” This hints at the role of feedback in setting the chaotic properties of galaxy formation. Importantly, we compare the macroscopic differences between shadow galaxies to the overall scatter in various galaxy scaling relations, and conclude that, for the star formation-mass and the Tully-Fisher relations, the butterfly effect in our simulations contributes significantly to the overall scatter. We find that our results are robust to whether random numbers are used in the subgrid models or not. We discuss the implications for galaxy formation theory in general and for cosmological simulations in particular. | ||
| 700 | 1 | |a Bryan, Greg L. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Springel, Volker |d 1970- |e VerfasserIn |0 (DE-588)122321391 |0 (DE-627)705861503 |0 (DE-576)293218463 |4 aut | |
| 700 | 1 | |a Hernquist, Lars |d 1954- |e VerfasserIn |0 (DE-588)1264244401 |0 (DE-627)1813088241 |4 aut | |
| 700 | 1 | |a Nelson, Dylan |e VerfasserIn |0 (DE-588)115182805X |0 (DE-627)101233600X |0 (DE-576)42382581X |4 aut | |
| 700 | 1 | |a Pillepich, Annalisa |e VerfasserIn |0 (DE-588)1151829854 |0 (DE-627)1012339327 |0 (DE-576)423800841 |4 aut | |
| 700 | 1 | |a Weinberger, Rainer |d 1989- |e VerfasserIn |0 (DE-588)1151825670 |0 (DE-627)1012332446 |0 (DE-576)498072851 |4 aut | |
| 700 | 1 | |a Pakmor, Rüdiger |d 1982- |e VerfasserIn |0 (DE-588)14360905X |0 (DE-627)647700670 |0 (DE-576)337951543 |4 aut | |
| 700 | 1 | |a Marinacci, Federico |e VerfasserIn |0 (DE-588)1054438684 |0 (DE-627)79152194X |0 (DE-576)410132837 |4 aut | |
| 700 | 1 | |a Vogelsberger, Mark |d 1978- |e VerfasserIn |0 (DE-588)133437698 |0 (DE-627)546058434 |0 (DE-576)299848299 |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t The astrophysical journal |d London : Institute of Physics Publ., 1995 |g 871(2019), 1, Artikel-ID 21, Seite 1-27 |h Online-Ressource |w (DE-627)269019219 |w (DE-600)1473835-1 |w (DE-576)077662733 |x 1538-4357 |7 nnas |a A quantification of the butterfly effect in cosmological simulations and implications for galaxy scaling relations |
| 773 | 1 | 8 | |g volume:871 |g year:2019 |g number:1 |g elocationid:21 |g pages:1-27 |g extent:27 |a A quantification of the butterfly effect in cosmological simulations and implications for galaxy scaling relations |
| 856 | 4 | 0 | |u https://doi.org/10.3847/1538-4357/aaf4bb |x Verlag |x Resolving-System |z lizenzpflichtig |3 Volltext |
| 951 | |a AR | ||
| 992 | |a 20220720 | ||
| 993 | |a Article | ||
| 994 | |a 2019 | ||
| 998 | |g 14360905X |a Pakmor, Rüdiger |m 14360905X:Pakmor, Rüdiger |d 130000 |d 130300 |e 130000PP14360905X |e 130300PP14360905X |k 0/130000/ |k 1/130000/130300/ |p 8 | ||
| 998 | |g 1151829854 |a Pillepich, Annalisa |m 1151829854:Pillepich, Annalisa |d 130000 |e 130000PP1151829854 |k 0/130000/ |p 6 | ||
| 998 | |g 115182805X |a Nelson, Dylan |m 115182805X:Nelson, Dylan |p 5 | ||
| 999 | |a KXP-PPN1811013864 |e 4171148839 | ||
| BIB | |a Y | ||
| SER | |a journal | ||
| JSO | |a {"relHost":[{"type":{"media":"Online-Ressource","bibl":"periodical"},"disp":"A quantification of the butterfly effect in cosmological simulations and implications for galaxy scaling relationsThe astrophysical journal","note":["Gesehen am 18.01.2022","Fortsetzung der Druck-Ausgabe"],"recId":"269019219","language":["eng"],"pubHistory":["Vol. 447 (1995) [?]-"],"part":{"year":"2019","issue":"1","pages":"1-27","text":"871(2019), 1, Artikel-ID 21, Seite 1-27","volume":"871","extent":"27"},"titleAlt":[{"title":"The astrophysical journal / 1"},{"title":"ApJ"}],"title":[{"title_sort":"astrophysical journal","subtitle":"an international review of spectroscopy and astronomical physics","title":"The astrophysical journal"}],"physDesc":[{"extent":"Online-Ressource"}],"name":{"displayForm":["publ. in coll. with the American Astronomical Society. S. Chandrasekhar, managing ed"]},"origin":[{"dateIssuedDisp":"[1995?]-","publisher":"Institute of Physics Publ. ; Univ. of Chicago Press","publisherPlace":"London ; Chicago, Ill. [u.a.]"}],"id":{"zdb":["1473835-1"],"eki":["269019219"],"issn":["1538-4357"]}}],"physDesc":[{"extent":"27 S."}],"name":{"displayForm":["Shy Genel, Greg L. Bryan, Volker Springel, Lars Hernquist, Dylan Nelson, Annalisa Pillepich, Rainer Weinberger, Rüdiger Pakmor, Federico Marinacci and Mark Vogelsberger"]},"id":{"eki":["1811013864"],"doi":["10.3847/1538-4357/aaf4bb"]},"origin":[{"dateIssuedKey":"2019","dateIssuedDisp":"2019 January 18"}],"recId":"1811013864","language":["eng"],"type":{"bibl":"article-journal","media":"Online-Ressource"},"note":["Gesehen am 27.07.2022"],"person":[{"role":"aut","roleDisplay":"VerfasserIn","display":"Genel, Shy","given":"Shy","family":"Genel"},{"family":"Bryan","given":"Greg L.","roleDisplay":"VerfasserIn","display":"Bryan, Greg L.","role":"aut"},{"roleDisplay":"VerfasserIn","display":"Springel, Volker","role":"aut","family":"Springel","given":"Volker"},{"given":"Lars","family":"Hernquist","role":"aut","roleDisplay":"VerfasserIn","display":"Hernquist, Lars"},{"family":"Nelson","given":"Dylan","roleDisplay":"VerfasserIn","display":"Nelson, Dylan","role":"aut"},{"roleDisplay":"VerfasserIn","display":"Pillepich, Annalisa","role":"aut","family":"Pillepich","given":"Annalisa"},{"given":"Rainer","family":"Weinberger","role":"aut","roleDisplay":"VerfasserIn","display":"Weinberger, Rainer"},{"display":"Pakmor, Rüdiger","roleDisplay":"VerfasserIn","role":"aut","family":"Pakmor","given":"Rüdiger"},{"role":"aut","roleDisplay":"VerfasserIn","display":"Marinacci, Federico","given":"Federico","family":"Marinacci"},{"given":"Mark","family":"Vogelsberger","role":"aut","roleDisplay":"VerfasserIn","display":"Vogelsberger, Mark"}],"title":[{"title":"A quantification of the butterfly effect in cosmological simulations and implications for galaxy scaling relations","title_sort":"quantification of the butterfly effect in cosmological simulations and implications for galaxy scaling relations"}]} | ||
| SRT | |a GENELSHYBRQUANTIFICA2019 | ||