Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The analysis of magnetic field measurements of T Tau   It is shown that the existence of hot accretion spots at the surface of T Tau
practically has no effect on the accuracy of estimation of its magnetic field
strength at photospheric level.
  We also found that one can interpret results of T Tau's photospheric magnetic
field strength measurements carried out via different methods in the frame of
the following alternative: 1) if T Tau's inclination angle $i\le 10^\circ,$
then magnetic field of the star may be dipolar with the angle between
rotational and magnetic axes is near $85^\circ;$ 2) if it will be found (e.g.
from interferometric observations) that $i>10^\circ,$ then magnetic field of T
Tau is essentially non-dipolar or/and non-stationary.

12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat