Table 4.

W-type contact binaries with decreasing orbital period.

StarPeriodqf|$dP/dt$|Reference
(d)(10|$^{-7}\:$|d|$\:$|yr|$^{-1}$|⁠)
VW Boo0.342320.4286.8|$\%$||$-$|1.45Liu et al. (2011)
AO Cam0.329910.41312.0|$\%$||$-$|1.26Yang et al. (2010)
BI CVn0.384210.41018.0|$\%$||$-$|1.51Qian et al. (2008)
V1007 Cas0.332007990.2978.1|$\%$||$-$|1.78Li et al. (2018)
IK Boo0.303117000.8722.2|$\%$||$-$|2.2Kriwattanawong, Sanguansak, and Maungkorn (2017)
KV Gem0.358522400.35724.6|$\%$||$-$|3.9Zhang et al. (2014)
SS Ari0.405990.3089.4|$\%$||$-$|4.03Liu et al. (2009)
MR Com0.412740.25610.0|$\%$||$-$|5.30Qian et al. (2013)
J1613350.2297780.90918.9|$\%$||$-$|4.26The present paper
StarPeriodqf|$dP/dt$|Reference
(d)(10|$^{-7}\:$|d|$\:$|yr|$^{-1}$|⁠)
VW Boo0.342320.4286.8|$\%$||$-$|1.45Liu et al. (2011)
AO Cam0.329910.41312.0|$\%$||$-$|1.26Yang et al. (2010)
BI CVn0.384210.41018.0|$\%$||$-$|1.51Qian et al. (2008)
V1007 Cas0.332007990.2978.1|$\%$||$-$|1.78Li et al. (2018)
IK Boo0.303117000.8722.2|$\%$||$-$|2.2Kriwattanawong, Sanguansak, and Maungkorn (2017)
KV Gem0.358522400.35724.6|$\%$||$-$|3.9Zhang et al. (2014)
SS Ari0.405990.3089.4|$\%$||$-$|4.03Liu et al. (2009)
MR Com0.412740.25610.0|$\%$||$-$|5.30Qian et al. (2013)
J1613350.2297780.90918.9|$\%$||$-$|4.26The present paper
Table 4.

W-type contact binaries with decreasing orbital period.

StarPeriodqf|$dP/dt$|Reference
(d)(10|$^{-7}\:$|d|$\:$|yr|$^{-1}$|⁠)
VW Boo0.342320.4286.8|$\%$||$-$|1.45Liu et al. (2011)
AO Cam0.329910.41312.0|$\%$||$-$|1.26Yang et al. (2010)
BI CVn0.384210.41018.0|$\%$||$-$|1.51Qian et al. (2008)
V1007 Cas0.332007990.2978.1|$\%$||$-$|1.78Li et al. (2018)
IK Boo0.303117000.8722.2|$\%$||$-$|2.2Kriwattanawong, Sanguansak, and Maungkorn (2017)
KV Gem0.358522400.35724.6|$\%$||$-$|3.9Zhang et al. (2014)
SS Ari0.405990.3089.4|$\%$||$-$|4.03Liu et al. (2009)
MR Com0.412740.25610.0|$\%$||$-$|5.30Qian et al. (2013)
J1613350.2297780.90918.9|$\%$||$-$|4.26The present paper
StarPeriodqf|$dP/dt$|Reference
(d)(10|$^{-7}\:$|d|$\:$|yr|$^{-1}$|⁠)
VW Boo0.342320.4286.8|$\%$||$-$|1.45Liu et al. (2011)
AO Cam0.329910.41312.0|$\%$||$-$|1.26Yang et al. (2010)
BI CVn0.384210.41018.0|$\%$||$-$|1.51Qian et al. (2008)
V1007 Cas0.332007990.2978.1|$\%$||$-$|1.78Li et al. (2018)
IK Boo0.303117000.8722.2|$\%$||$-$|2.2Kriwattanawong, Sanguansak, and Maungkorn (2017)
KV Gem0.358522400.35724.6|$\%$||$-$|3.9Zhang et al. (2014)
SS Ari0.405990.3089.4|$\%$||$-$|4.03Liu et al. (2009)
MR Com0.412740.25610.0|$\%$||$-$|5.30Qian et al. (2013)
J1613350.2297780.90918.9|$\%$||$-$|4.26The present paper
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