Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Effect of Misalignment between Rotation Axis and Magnetic Field on
  Circumstellar Disk   The formation of circumstellar disks is investigated using three-dimensional
resistive magnetohydrodynamic simulations, in which the initial prestellar
cloud has a misaligned rotation axis with respect to the magnetic field. We
examine the effects of (i) the initial angle difference between the global
magnetic field and the cloud rotation axis ($\theta_0$) and (ii) the ratio of
the thermal to gravitational energy ($\alpha_0$). We study $16$ models in total
and calculate the cloud evolution until $\sim \! 5000$ yr after protostar
formation. Our simulation results indicate that an initial non-zero $\theta_0$
($> 0$) promotes the disk formation but tends to suppress the outflow driving,
for models that are moderately gravitationally unstable, $\alpha_0 \lesssim 1$.
In these models, a large-sized rotationally-supported disk forms and a weak
outflow appears, in contrast to a smaller disk and strong outflow in the
aligned case ($\theta_0 = 0$). Furthermore, we find that when the initial cloud
is highly unstable with small $\alpha_0$, the initial angle difference
$\theta_0$ does not significantly affect the disk formation and outflow
driving.

8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
4
The categories of this paper are: cond-mat
19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
18
The categories of this paper are: econ
21
The categories of this paper are: adap-org