Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Differences in the fast optical variability of the dwarf nova V1504 Cyg
  between quiescence and outbursts detected in Kepler data and simulations of
  the rms-flux relations   An optical light curve of SU UMa type dwarf nova V1504 Cyg taken by Kepler
was analysed in order to study fast optical variability (flickering). We
calculated power density spectra and rms-flux relations for two different
stages of activity, i.e. quiescence and regular outbursts. A multicomponent
power density spectrum with two break frequencies was found during both
activity stages. The rms-flux relation is obvious only in the quiescent data.
However, while the collection of all outburst data do not show this
variability, every individual outburst does show it in the majority of cases
keeping the rms value approximately in the same interval. Furthermore, the same
analysis was performed for light curve subsamples taken from the beginning,
middle and the end of the supercycle both for quiescence and regular outbursts.
Every light curve subsample shows the same multicomponent power density
spectrum. The stability of the break frequencies over the supercycle can be
confirmed for all frequencies except for the high break frequency during
outburst, which shows variability, but with rather low confidence. Finally, the
low break frequency can be associated with the geometrically thin disc or its
inner edge, while the high break frequency can originate from the inner
geometrically thick hot disc. Furthermore, with our statistical method to
simulate flickering light curves, we show that the outburst flickering light
curve of V1504 Cyg needs an additional constant flux level to explain the
observed rms-flux behaviour. Therefore, during the outbursts another
non-turbulent radiation source should be present.

27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
19
The categories of this paper are: eess
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol