Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae.
  VI: The Sixth Year (2013-2014)   Continuing the project described by Kato et al. (2009, PASJ, 61, S395,
arXiv:0905.1757), we collected times of superhump maxima for 56 SU UMa-type
dwarf novae mainly observed during the 2013-2014 season and characterized these
objects. We detected negative superhumps in VW Hyi and indicated that the low
number of normal outbursts in some supercycle can be interpreted as a result of
the disk tilt. This finding, combined with the Kepler observation of V1504 Cyg
and V344 Lyr, suggests that the disk tilt is responsible for modulating the
outburst pattern in SU UMa-type dwarf novae. We also studied the deeply
eclipsing WZ Sge-type dwarf nova MASTER OT J005740.99+443101.5 and found
evidence of a sharp eclipse during the phase of early superhumps. The profile
can be reproduced by a combination of the eclipse of the axisymmetric disk and
the uneclipsed light source of early superhumps. This finding confirms the lack
of evince of a greatly enhanced hot spot during the early stage of WZ Sge-type
outburst. We detected growing (stage A) superhumps in MN Dra and give a
suggestion that some of SU UMa-type dwarf novae situated near the critical
condition of tidal instability may show long-lasting stage A superhumps. The
large negative period derivatives reported in such systems can be understood a
result of the combination of stage A and B superhumps. The WZ Sge-type dwarf
novae AL Com and ASASSN-13ck showed a long-lasting (plateau-type)
rebrightening. In the early phase of the rebrightening, both objects showed a
precursor-like outburst, suggesting that the long-lasting rebrightening is
triggered by a precursor outburst.

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The categories of this paper are: mtrl-th
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The categories of this paper are: q-fin
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The categories of this paper are: alg-geom
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The categories of this paper are: funct-an
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The categories of this paper are: q-alg
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The categories of this paper are: ao-sci
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The categories of this paper are: q-bio
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The categories of this paper are: acc-phys
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The categories of this paper are: dg-ga
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The categories of this paper are: cond-mat
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The categories of this paper are: cmp-lg
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The categories of this paper are: adap-org
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The categories of this paper are: math
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The categories of this paper are: comp-gas
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-ex