Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Repeatability of Spitzer/IRAC exoplanetary eclipses with Independent
  Component Analysis   The research of effective and reliable detrending methods for Spitzer data is
of paramount importance for the characterization of exoplanetary atmospheres.
To date, the totality of exoplanetary observations in the mid- and
far-infrared, at wavelengths $>$3 $\mu$m, have been taken with Spitzer. In some
cases, in the past years, repeated observations and multiple reanalyses of the
same datasets led to discrepant results, raising questions about the accuracy
and reproducibility of such measurements. Morello et al. 2014, 2015 proposed a
blind-source separation method based on the Independent Component Analysis of
pixel time series (pixel-ICA) to analyze IRAC data, obtaining coherent results
when applied to repeated transit observations previously debated in the
literature. Here we introduce a variant to pixel-ICA through the use of wavelet
transform, wavelet pixel-ICA, which extends its applicability to low-S/N cases.
We describe the method and discuss the results obtained over twelve eclipses of
the exoplanet XO3b observed during the "Warm Spitzer" era in the 4.5 $\mu$m
band. The final results will be reported also in Ingalls et al. (in prep.),
together with results obtained with other detrending methods, and over ten
synthetic eclipses that were analyzed for the "IRAC Data Challenge 2015". Our
results are consistent within 1 $\sigma$ with the ones reported in Wong et al.
2014. The self-consistency of individual measurements of eclipse depth and
phase curve slope over a span of more than three years proves the stability of
Warm Spitzer/IRAC photometry within the error bars, at the level of 1 part in
10$^4$ in stellar flux.

14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
4
The categories of this paper are: cond-mat
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
19
The categories of this paper are: eess
32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin