Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Magnetic Field Evolution in an Accreting White Dwarf   I discuss the evolution of the magnetic field of an accreting white dwarf. I
show that the ohmic decay time is 7-12 billion years for the lowest order decay
mode, almost independent of core temperature or mass. I then show that the
magnetic field structure is substantially altered by accretion if the white
dwarf mass increases at a rate more than 1-5 x 10^(-10) solar masses per year.
I discuss the implications of this result for observed systems, including the
possible evolutionary link between AM Hers and intermediate polars.

37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
14
The categories of this paper are: math-ph
25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga