Competitive roles of turbulence and magnetic field on the formation of unipolar outflows in isolated molecular cloud cores

@misc{takaishi2026competitive,
  title = {{Competitive roles of turbulence and magnetic field on the formation of unipolar outflows in isolated molecular cloud cores}},
  author = {Daisuke Takaishi and Yusuke Tsukamoto and Miyu Kido and Shigehisa Takakuwa and Yoshiaki Misugi and Yuki Kudoh and Yasushi Suto},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.26176},
  eprint = {2610.26176},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.26176},
}

TY  - UNPB
TI  - Competitive roles of turbulence and magnetic field on the formation of unipolar outflows in isolated molecular cloud cores
AU  - Daisuke Takaishi
AU  - Yusuke Tsukamoto
AU  - Miyu Kido
AU  - Shigehisa Takakuwa
AU  - Yoshiaki Misugi
AU  - Yuki Kudoh
AU  - Yasushi Suto
PY  - 2026
DA  - 2026/10/19
PB  - arXiv
DO  - 10.48550/arxiv.2610.26176
UR  - https://arxiv.org/abs/2610.26176
AB  - We investigate the impact of turbulence and magnetic field on the formation of unipolar outflows in the gravitational collapse of isolated low-mass cloud cores using three-dimensional non-ideal magnetohydrodynamics simulations. In the models explored in this study, we find that unipolar outflows are formed in cloud cores with the super-Alfvénic turbulence of M_A>1, where M_A is the Alfvén Mach number of the initial cloud core. In contrast, bipolar outflows are formed in cloud cores with M_A≲1. Our results suggest that the relative strength of the turbulence to the magnetic field in the initial cloud core plays a key role in the formation of unipolar outflows. We also find that no outflow is formed in cloud cores with the strong magnetic field of the dimensionless mass-to-flux ratio μ=2. The outflow morphologies can be used as tracers to indirectly estimate the relative strengths of the turbulence and magnetic field of the parent cloud cores.
ER  -