Matches in SemOpenAlex for { <https://semopenalex.org/work/W2896747343> ?p ?o ?g. }
- W2896747343 endingPage "3663" @default.
- W2896747343 startingPage "3647" @default.
- W2896747343 abstract "Most stars form in binaries and the evolution of their discs remains poorly understood. To shed light on this subject, we carry out 3D ideal MHD simulations with the AMR code FLASH of binary star formation for separations of $10-20,mathrm{AU}$. We run a simulation with no initial turbulence (NT), and two with turbulent Mach numbers of $mathcal{M} = sigma_v/c_s = 0.1$ and $0.2$ (T1 and T2) for $5000,mathrm{yr}$ after protostar formation. By the end of the simulations the circumbinary discs in NT and T1, if any, have radii of $lesssim20,mathrm{AU}$ with masses $lesssim0.02,mathrm{M}_odot$, while T2 hosts a circumbinary disc with radius $sim70-80,mathrm{AU}$ and mass $sim0.12,mathrm{M}_odot$. These circumbinary discs formed from the disruption of circumstellar discs and harden the binary orbit. Our simulated binaries launch large single outflows. We find that NT drives the most massive outflows, and also removes large quantities of linear and angular momentum. T2 produces the least efficient outflows concerning mass, momentum and angular momentum ($sim$61 per cent, $sim$71 per cent, $sim$68 per cent of the respective quantities in NT). We conclude that while turbulence helps to build circumbinary discs which organise magnetic fields for efficient outflow launching, too much turbulence may also disrupt the ordered magnetic field structure required for magneto-centrifugal launching of jets and outflows. We also see evidence for episodic accretion during the binary star evolution. We conclude that the role of turbulence in building large circumbinary discs may explain some observed very old ($>10,mathrm{Myr}$) circumbinary discs. The longer lifetime of circumbinary discs may increase the likelihood of planet formation." @default.
- W2896747343 created "2018-10-26" @default.
- W2896747343 creator A5016250498 @default.
- W2896747343 creator A5041108575 @default.
- W2896747343 date "2019-04-13" @default.
- W2896747343 modified "2023-10-15" @default.
- W2896747343 title "The role of turbulence during the formation of circumbinary discs" @default.
- W2896747343 cites W1526591996 @default.
- W2896747343 cites W1622003189 @default.
- W2896747343 cites W1644058889 @default.
- W2896747343 cites W1727676384 @default.
- W2896747343 cites W1947606095 @default.
- W2896747343 cites W1966351257 @default.
- W2896747343 cites W1967433269 @default.
- W2896747343 cites W1978574709 @default.
- W2896747343 cites W1979348280 @default.
- W2896747343 cites W1980585876 @default.
- W2896747343 cites W1981001851 @default.
- W2896747343 cites W1985875051 @default.
- W2896747343 cites W1989828771 @default.
- W2896747343 cites W1993037581 @default.
- W2896747343 cites W1997860382 @default.
- W2896747343 cites W2000341424 @default.
- W2896747343 cites W2001281840 @default.
- W2896747343 cites W2004790827 @default.
- W2896747343 cites W2008733308 @default.
- W2896747343 cites W2008955166 @default.
- W2896747343 cites W2016808727 @default.
- W2896747343 cites W2018368612 @default.
- W2896747343 cites W2020913145 @default.
- W2896747343 cites W2030208846 @default.
- W2896747343 cites W2031808549 @default.
- W2896747343 cites W2033318843 @default.
- W2896747343 cites W2049997963 @default.
- W2896747343 cites W2050633144 @default.
- W2896747343 cites W2051431923 @default.
- W2896747343 cites W2051762527 @default.
- W2896747343 cites W2056833321 @default.
- W2896747343 cites W2061709220 @default.
- W2896747343 cites W2062327870 @default.
- W2896747343 cites W2062719264 @default.
- W2896747343 cites W2065189843 @default.
- W2896747343 cites W2070154021 @default.
- W2896747343 cites W2080259092 @default.
- W2896747343 cites W2085259689 @default.
- W2896747343 cites W2086373253 @default.
- W2896747343 cites W2114933536 @default.
- W2896747343 cites W2127476512 @default.
- W2896747343 cites W2147617663 @default.
- W2896747343 cites W2153970052 @default.
- W2896747343 cites W2156228074 @default.
- W2896747343 cites W2156621121 @default.
- W2896747343 cites W2170624850 @default.
- W2896747343 cites W2190287918 @default.
- W2896747343 cites W2301701831 @default.
- W2896747343 cites W2524369660 @default.
- W2896747343 cites W2530043748 @default.
- W2896747343 cites W2539898204 @default.
- W2896747343 cites W2557976643 @default.
- W2896747343 cites W2560777423 @default.
- W2896747343 cites W2618362917 @default.
- W2896747343 cites W2620070810 @default.
- W2896747343 cites W2626081547 @default.
- W2896747343 cites W2723569213 @default.
- W2896747343 cites W2734692244 @default.
- W2896747343 cites W2746808306 @default.
- W2896747343 cites W2752484966 @default.
- W2896747343 cites W2762580082 @default.
- W2896747343 cites W2762773434 @default.
- W2896747343 cites W2767992348 @default.
- W2896747343 cites W2782500209 @default.
- W2896747343 cites W2785950529 @default.
- W2896747343 cites W2799053481 @default.
- W2896747343 cites W2805613738 @default.
- W2896747343 cites W2886925859 @default.
- W2896747343 cites W2951605167 @default.
- W2896747343 cites W2952372832 @default.
- W2896747343 cites W3098023104 @default.
- W2896747343 cites W3098211658 @default.
- W2896747343 cites W3098259778 @default.
- W2896747343 cites W3098615327 @default.
- W2896747343 cites W3098624753 @default.
- W2896747343 cites W3099111041 @default.
- W2896747343 cites W3099125925 @default.
- W2896747343 cites W3099917631 @default.
- W2896747343 cites W3100689422 @default.
- W2896747343 cites W3101201750 @default.
- W2896747343 cites W3101203119 @default.
- W2896747343 cites W3101245584 @default.
- W2896747343 cites W3101288677 @default.
- W2896747343 cites W3102115841 @default.
- W2896747343 cites W3102386126 @default.
- W2896747343 cites W3103007392 @default.
- W2896747343 cites W3103073865 @default.
- W2896747343 cites W3103137987 @default.
- W2896747343 cites W3103753712 @default.
- W2896747343 cites W3103885239 @default.
- W2896747343 cites W3103901635 @default.