Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Time dependent black holes and scalar hair   We show how to correctly account for scalar accretion onto black holes in
scalar field models of dark energy by a consistent expansion in terms of a slow
roll parameter. We find an exact solution for the scalar field within our
Hubble volume which is regular on both black hole and cosmological event
horizons, and compute the back reaction of the scalar on the black hole,
calculating the resulting expansion of the black hole. Our results are
independent of the relative size of black hole and cosmological event horizons.
We comment on the implications for more general black hole accretion, and the
no hair theorems.

18
The categories of this paper are: econ
13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics