The density distribution and physical origins of intermittency in supersonic, highly magnetized turbulence with diverse modes of driving
The probability density function (PDF) of the logarithmic density contrast, s = ln (ρ/ρ0), with gas density ρ and mean density ρ0, for hydrodynamical supersonic turbulence is well known to have significant non-Gaussian (intermittent) features that monotonically increase with the turbulent Mach numbe...
Gespeichert in:
| Hauptverfasser: | , , , |
|---|---|
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2022 October 22
|
| In: |
Monthly notices of the Royal Astronomical Society
Year: 2022, Jahrgang: 517, Heft: 4, Pages: 5003-5031 |
| ISSN: | 1365-2966 |
| DOI: | 10.1093/mnras/stac3005 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1093/mnras/stac3005
|
| Verfasserangaben: | James R. Beattie, Philip Mocz, Christoph Federrath and Ralf S. Klessen |
MARC
| LEADER | 00000caa a2200000 c 4500 | ||
|---|---|---|---|
| 001 | 1832551776 | ||
| 003 | DE-627 | ||
| 005 | 20240326080439.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 230127s2022 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1093/mnras/stac3005 |2 doi | |
| 035 | |a (DE-627)1832551776 | ||
| 035 | |a (DE-599)KXP1832551776 | ||
| 035 | |a (OCoLC)1389536012 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rda | ||
| 041 | |a eng | ||
| 084 | |a 29 |2 sdnb | ||
| 100 | 1 | |a Beattie, James R. |e VerfasserIn |0 (DE-588)1192484371 |0 (DE-627)1671031458 |4 aut | |
| 245 | 1 | 4 | |a The density distribution and physical origins of intermittency in supersonic, highly magnetized turbulence with diverse modes of driving |c James R. Beattie, Philip Mocz, Christoph Federrath and Ralf S. Klessen |
| 264 | 1 | |c 2022 October 22 | |
| 300 | |a 29 | ||
| 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 27.01.2023 | ||
| 520 | |a The probability density function (PDF) of the logarithmic density contrast, s = ln (ρ/ρ0), with gas density ρ and mean density ρ0, for hydrodynamical supersonic turbulence is well known to have significant non-Gaussian (intermittent) features that monotonically increase with the turbulent Mach number, $\mathcal {M}$. By studying the mass- and volume-weighted s-PDF for an ensemble of 36 sub-to-trans-Alfv́enic mean-field, supersonic, isothermal turbulence simulations with different modes of driving, relevant to molecular gas in the cool interstellar medium, we show that a more intricate picture emerges for the non-Gaussian nature of s. Using four independent measures of the non-Gaussian components, we find hydrodynamical-like structure in the highly magnetized plasma for $\mathcal {M} \lesssim 4$. However, for $\mathcal {M} \gtrsim 4$, the non-Gaussian signatures disappear, leaving approximately Gaussian s-statistics - exactly the opposite of hydrodynamical turbulence in the high-$\mathcal {M}$ limit. We also find that the non-Gaussian components of the PDF increase monotonically with more compressive driving modes. To understand the $\mathcal {M} \lesssim 4$ non-Gaussian features, we use one-dimensional pencil beams to explore the dynamics along and across the large-scale magnetic field, $\mathrm{{\boldsymbol {\mathit {B}}}}_0$. We discuss kinetic, density, and magnetic field fluctuations from the pencil beams, and identify physical sources of non-Gaussian components to the PDF as single, strong shocks coupled to fast magnetosonic compressions that form along $\mathrm{{\boldsymbol {\mathit {B}}}}_0$. We discuss the Gaussianization of the $\mathcal {M} \gtrsim 4$s-fields through the lens of two phenomenologies: the self-similarity of the s-field and homogenization of the dynamical time-scales between the over- and underdense regions in the compressible gas. | ||
| 700 | 1 | |a Mocz, Philip |e VerfasserIn |0 (DE-588)1283261367 |0 (DE-627)1839064862 |4 aut | |
| 700 | 1 | |a Federrath, Christoph |e VerfasserIn |0 (DE-588)141657138 |0 (DE-627)630407959 |0 (DE-576)324891598 |4 aut | |
| 700 | 1 | |a Klessen, Ralf S. |d 1968- |e VerfasserIn |0 (DE-588)120533820 |0 (DE-627)392381532 |0 (DE-576)178685399 |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |a Royal Astronomical Society |t Monthly notices of the Royal Astronomical Society |d Oxford : Oxford Univ. Press, 1827 |g 517(2022), 4 vom: Dez., Seite 5003-5031 |h Online-Ressource |w (DE-627)314059164 |w (DE-600)2016084-7 |w (DE-576)090955420 |x 1365-2966 |7 nnas |
| 773 | 1 | 8 | |g volume:517 |g year:2022 |g number:4 |g month:12 |g pages:5003-5031 |g extent:29 |a The density distribution and physical origins of intermittency in supersonic, highly magnetized turbulence with diverse modes of driving |
| 856 | 4 | 0 | |u https://doi.org/10.1093/mnras/stac3005 |x Verlag |x Resolving-System |z lizenzpflichtig |3 Volltext |
| 951 | |a AR | ||
| 992 | |a 20230127 | ||
| 993 | |a Article | ||
| 994 | |a 2022 | ||
| 998 | |g 120533820 |a Klessen, Ralf S. |m 120533820:Klessen, Ralf S. |d 700000 |d 714000 |d 714200 |e 700000PK120533820 |e 714000PK120533820 |e 714200PK120533820 |k 0/700000/ |k 1/700000/714000/ |k 2/700000/714000/714200/ |p 4 |y j | ||
| 999 | |a KXP-PPN1832551776 |e 4252344255 | ||
| BIB | |a Y | ||
| SER | |a journal | ||
| JSO | |a {"relHost":[{"recId":"314059164","origin":[{"publisher":"Oxford Univ. Press ; Blackwell ; Wiley-Blackwell","dateIssuedDisp":"1827-","dateIssuedKey":"1827","publisherPlace":"Oxford ; Oxford [u.a.] ; Oxford [u.a.]"}],"physDesc":[{"extent":"Online-Ressource"}],"id":{"doi":["10.1111/(ISSN)1365-2966"],"zdb":["2016084-7"],"issn":["1365-2966"],"eki":["314059164"]},"title":[{"title_sort":"Monthly notices of the Royal Astronomical Society","title":"Monthly notices of the Royal Astronomical Society"}],"note":["Gesehen am 15.01.2018"],"pubHistory":["1.1827 -"],"part":{"year":"2022","volume":"517","text":"517(2022), 4 vom: Dez., Seite 5003-5031","issue":"4","extent":"29","pages":"5003-5031"},"language":["eng"],"corporate":[{"role":"aut","display":"Royal Astronomical Society"}],"disp":"Royal Astronomical SocietyMonthly notices of the Royal Astronomical Society","type":{"media":"Online-Ressource","bibl":"periodical"}}],"origin":[{"dateIssuedDisp":"2022 October 22","dateIssuedKey":"2022"}],"title":[{"title":"The density distribution and physical origins of intermittency in supersonic, highly magnetized turbulence with diverse modes of driving","title_sort":"density distribution and physical origins of intermittency in supersonic, highly magnetized turbulence with diverse modes of driving"}],"type":{"bibl":"article-journal","media":"Online-Ressource"},"id":{"eki":["1832551776"],"doi":["10.1093/mnras/stac3005"]},"physDesc":[{"extent":"29 S."}],"person":[{"given":"James R.","display":"Beattie, James R.","role":"aut","family":"Beattie"},{"role":"aut","family":"Mocz","display":"Mocz, Philip","given":"Philip"},{"display":"Federrath, Christoph","given":"Christoph","family":"Federrath","role":"aut"},{"role":"aut","family":"Klessen","display":"Klessen, Ralf S.","given":"Ralf S."}],"recId":"1832551776","note":["Gesehen am 27.01.2023"],"language":["eng"],"name":{"displayForm":["James R. Beattie, Philip Mocz, Christoph Federrath and Ralf S. Klessen"]}} | ||
| SRT | |a BEATTIEJAMDENSITYDIS2022 | ||