The SW Sextantis-type star 2MASS J01074282+4845188: an unusual bright accretion disk with non-steady emission and a hot white dwarf

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Table 5

Parameters of the light curve solution of J0107.

Parameters	Units	B	V ₁	V ₂	R	I

n		114	43	75	71	35


		2.332 ± 0.023
i	°	81.4 ± 0.1
T ₂	K	5090 ± 20
⟨ R₂ ⟩	a ₀	0.318 ± 0.001
ξ	a ₀	0.586 ± 0.001

		White dwarf
R _wd	ξ	0.0113 ± 0.0011
R _wd	a ₀	0.0066 ± 0.0006
T _wd	K	40000 ± 600

		Accretion disk
R _d	ξ	0.362 ± 0.009	0.46 ± 0.03	0.381 ± 0.005	0.462 ± 0.003	0.50 ± 0.04
a	a ₀	0.211 ± 0.005	0.27 ± 0.02	0.223 ± 0.003	0.270 ± 0.001	0.29 ± 0.02
A		4.6 ± 0.3	4.6 ± 0.9	4.5 ± 0.1	4.60 ± 0.03	4.6 ± 0.8
z/2	a ₀	0.0100 ± 0.0002	0.013 ± 0.006	0.010 ± 0.001	0.013 ± 0.001	0.014 ± 0.001
β	°	5.38 ± 0.02	5.4 ± 0.9	5.64 ± 0.02	5.43 ± 0.02	5.42 ± 0.02
T _in	K	44110 ± 820	52470 ± 7200	52350 ± 800	58780 ± 13100	58900 ± 9550
T _out	K	17300 ± 110	23800 ± 300	28600 ± 110	31350 ± 75	32150 ± 140
α _g		0.27 ± 0.04	0.22 ± 0.04	0.173 ± 0.005	0.17 ± 0.01	0.16 ± 0.04

		Hot line and hot spot
a _v	a ₀	0.02 ± 0.01	0.09 ± 0.04	0.08 ± 0.01	0.13 ± 0.01	0.04 ± 0.02
b _v	a ₀	0.213 ± 0.008	0.30 ± 0.03	0.26 ± 0.01	0.36 ± 0.01	0.24 ± 0.02
c _v	a ₀	0.010 ± 0.001	0.02 ± 0.01	0.019 ± 0.002	0.023 ± 0.001	0.017 ± 0.002
T _w	K	50000 ± 2060	77500 ± 3770	85120 ± 3700	67640 ± 1700	57110 ± 2540
T _l	K	22750 ± 3900	1710 ± 240	1850 ± 350	2510 ± 1600	27180 ± 2330
R _sp	a ₀	0.10 ± 0.02	0.2 ± 0.1	0.13 ± 0.07	0.24 ± 0.02	0.13 ± 0.04
ϕ _sp	°	8.5 ± 0.5	9 ± 2	6 ± 2	6.3 ± 0.1	14 ± 4


χ ²		9177	3419	4607	3148	1774
		168.5	78.2	120.1	115	66.9

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