Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Eigenvector Sky Subtraction   We develop a new method for estimating and removing the spectrum of the sky
from deep spectroscopic observations; our method does not rely on simultaneous
measurement of the sky spectrum with the object spectrum. The technique is
based on the iterative subtraction of continuum estimates and Eigenvector sky
models derived from Singular Value Decompositions (SVD) of sky spectra, and sky
spectra residuals. Using simulated data derived from small telescope
observations we demonstrate that the method is effective for faint objects on
large telescopes. We discuss simple methods to combine our new technique with
the simultaneous measurement of sky to obtain sky subtraction very near the
Poisson limit.

36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
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The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
3
The categories of this paper are: physics
9
The categories of this paper are: nlin