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Table 2.

Results of the analysis of UU Cas orbital light curves.

Quantity UBV UBVR g V Ic V Average ± std
KW P02 ASAS-SN KWS KWS INTEGRAL
q 0.52 0.52 0.52 0.52 0.52 0.52 0.52
i[°] 74.2 ± 0.3 74.7 ± 0.3 74.3 ± 0.6 74.3 ± 0.4 74.9 ± 0.4 74.6 ± 0.5 74.5 ± 0.3
Fd 0.91 ± 0.04 0.97 ± 0.03 0.95 ± 0.03 0.88 ± 0.02 0.96 ± 0.03 0.80 ± 0.03 0.91 ± 0.06
Td[K] 16 180 ± 390 14 970 ± 300 16 030 ± 300 16 320 ± 300 16 100 ± 300 15 720 ± 300 15 887 ± 491
de[aorb] 0.116 ± 0.006 0.138 ± 0.03 0.082 ± 0.01 0.109 ± 0.02 0.179 ± 0.01 0.121 ± 0.02 0.12 ± 0.03
dc[aorb] 0.171 ± 0.016 0.178 ± 0.01 0.190 ± 0.01 0.183 ± 0.01 0.107 ± 0.01 0.189 ± 0.01 0.17 ± 0.03
aT 8.5 ± 0.6 8.0 ± 1.4 8.3 ± 0.9 8.4 ± 0.6 8.5 ± 0.6 8.2 ± 0.5 8.3 ± 0.2
fg 11.8 ± 0.2 11.95 ± 0.1 11.91 ± 0.2 11.97 ± 0.2 12.0 ± 0.3 12.0 ± 0.2 11.94 ± 0.08
Fh 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Th[K] 30 260 ± 400 30 150 ± 400 30 260 ± 400 30 230 ± 400 30 200 ± 400 30 220 ± 400 30 220 ± 42
Tc[K] 22 700 22 700 22 700 22 700 22 700 22 700 22 700
Ahs = Ths/Td 1.46 ± 0.13 1.36 ± 0.12 1.50 ± 0.08 1.57 ± 0.07 1.70 ± 0.06 1.54 ± 0.07 1.52 ± 0.11
θhs[°] 22.8 ± 1.2 24.4 ± 0.9 22.9 ± 1.2 22.6 ± 1.0 22.8 ± 0.9 23.2 ± 1.1 23.1 ± 0.7
λhs[°] 313.0 ± 5.1 316.5 ± 12.8 326.0 ± 7.1 313.5 ± 5.6 320.5 ± 6.2 319.1 ± 7.1 318.1 ± 4.9
θrad[°] −31.0 ± 6.1 −30.2 ± 5.1 −27.4 ± 5.6 −29.3 ± 7.0 −31.8 ± 8.2 −30.9 ± 9.2 −30.1 ± 1.6
Abs = Tbs/Td 1.31 ± 0.05 1.24 ± 0.08 1.40 ± 0.08 1.33 ± 0.07 1.50 ± 0.08 1.34 ± 0.07 1.35 ± 0.09
θbs[°] 52.4 ± 3.1 51.8 ± 2.2 52.0 ± 2.7 51.6 ± 3.6 52.5 ± 4.0 40.5 ± 3.2 50.1 ± 4.7
λbs[°] 82.2 ± 13.2 124.9 ± 12.9 141.2 ± 9.7 107.9 ± 8.9 118.4 ± 9.4 98.2 ± 7.5 112.1 ± 20.8
Ωh 9.467 ± 0.03 9.554 ± 0.02 9.534 ± 0.06 9.562 ± 0.05 9.592 ± 0.06 9.586 ± 0.05 9.55 ± 0.04
Ωc 2.914 ± 0.02 2.914 ± 0.02 2.914 ± 0.02 2.914 ± 0.02 2.914 ± 0.02 2.914 ± 0.02 2.914 ± 0.02
h[M] 17.4 ± 0.2 17.4 ± 0.2 17.4 ± 0.3 17.4 ± 0.3 17.4 ± 0.3 17.4 ± 0.3 17.4 ± 0.3
𝒞c[M] 9.0 ± 0.2 9.0 ± 0.2 9.0 ± 0.2 9.0 ± 0.2 9.0 ± 0.2 9.0 ± 0.2 9.0 ± 0.2
h[R] 7.1 ± 0.1 7.0 ± 0.1 7.0 ± 0.1 7.0 ± 0.1 7.0 ± 0.1 7.0 ± 0.1 7.0 ± 0.1
c[R] 16.9 ± 0.1 16.9 ± 0.1 16.9 ± 0.1 16.9 ± 0.1 16.9 ± 0.1 16.9 ± 0.1 16.9 ± 0.1
log gh 3.98 ± 0.02 3.98 ± 0.02 3.98 ± 0.02 3.98 ± 0.02 3.99 ± 0.02 3.99 ± 0.02 3.983 ± 0.005
log gc 2.94 ± 0.02 2.94 ± 0.02 2.94 ± 0.02 2.94 ± 0.02 2.94 ± 0.02 2.94 ± 0.02 2.94 ± 0.02
−6.7 ± 0.1 −6.6 ± 0.1 −6.6 ± 0.1 −6.6 ± 0.1 −6.6 ± 0.1 −6.6 ± 0.1 −6.62 ± 0.04
−7.3 ± 0.1 −7.3 ± 0.1 −7.3 ± 0.1 −7.3 ± 0.1 −7.3 ± 0.1 −7.3 ± 0.1 −7.3 ± 0.1
aorb[R] 52.2 ± 0.3 52.2 ± 0.2 52.2 ± 0.3 52.2 ± 0.3 52.2 ± 0.3 52.2 ± 0.3 52.2 ± 0.3
[ℛ] 20.7 ± 1.1 22.0 ± 0.6 21.6 ± 0.3 20.1 ± 0.3 21.9 ± 0.4 18.3 ± 0.4 20.8 ± 1.4
de[R] 6.0 ± 0.4 7.2 ± 1.2 4.3 ± 0.7 5.7 ± 0.5 9.4 ± 0.4 6.3 ± 0.4 6.5 ± 1.7
dc[R] 8.9 ± 0.9 9.3 ± 0.5 9.9 ± 0.7 9.6 ± 0.7 5.6 ± 0.6 9.8 ± 0.5 8.8 ± 1.6

Notes. Dataset labels refers to Table 1. The models were obtained by solving the inverse problem for the Roche model with an accretion disk around the more massive (hotter) gainer in a critical nonsynchronous rotation regime (Djurašević 1992a,b, 1996). Mean values are also given. FIXED PARAMETERS: q = ℳc/ℳh = 0.52 – mass ratio of the components; Tc = 22 700 K – temperature of the less massive (cooler) donor; Fc = 1.0 – filling factor for the critical Roche lobe of the donor; fc = 1.00 – nonsynchronous rotation coefficients of the donor; Fh = Rh/Rzc – filling factor for the critical nonsynchronous lobe of the hotter, more massive gainer (ratio of the stellar polar radius to the critical Roche lobe radius along the z-axis for a star in a critical nonsynchronous rotation regime); βh, c = 0.25 – gravity-darkening coefficients of the components; Ah, c = 1.0 – albedo coefficients of the components. Note: Origin of the photometric observations; photometric band; q – mass ratio of the components;i – orbit inclination (in arc degrees); Fd = Rd/Ryc – disk dimension factor (the ratio of the disk radius to the critical Roche lobe radius along y-axis); Td – disk-edge temperature; de, dc, – disk thicknesses (at the edge and at the center of the disk, respectively) in the units of the distance between the components; aT – disk temperature distribution coefficient; fg – nonsynchronous rotation coefficient of the more massive gainer (in the synchronous rotation regime); Th – temperature of the more-massive (hotter) gainer; Ahs, bs = Ths, bs/Td – hot and bright spots’ temperature coefficients; θhs, bs and λhs, bs – spots’ angular dimensions and longitudes (in arc degrees, the longitude is measured in the direction of the orbital motion); θrad – angle between the line perpendicular to the local disk edge surface and the direction of the hot-spot maximum radiation; Ωh, c – dimensionless surface potentials of the hotter gainer and cooler donor; ℳ〈,⌋[ℳ], ℛ〈,⌋[ℛ] – stellar masses and mean radii of stars in solar units; log gh, c – logarithm (base 10) of the system components effective gravity; – absolute stellar bolometric magnitudes; aorb [R], ℛ[ℛ], de[R], dc[R] – orbital semimajor axis, disk radius, and disk thicknesses at its edge and center, respectively, given in solar units.

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