Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Environmental Influences on the LIGO Gravitational Wave Detectors during
  the 6th Science Run   We describe the influence of environmental noise on LIGO detectors in the
sixth science run (S6), from July 2009 to October 2010. We show results from
experimental investigations testing the coupling level and mechanisms for
acoustic, electromagnetic/magnetic and seismic noise to the instruments. We
argument the sensors' importance for vetoes of false positive detections,
report estimates of the noise sources' contributions to the detector
background, and discuss the ways in which environmental coupling should be
reduced in the LIGO upgrade, Advanced LIGO.

9
The categories of this paper are: nlin
1
The categories of this paper are: cs
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
13
The categories of this paper are: quant-ph