Close binary and other variable stars in the solar-age Galactic open cluster M 67

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Volume 503 / No 1 (August III 2009)

A&A, 503 1 (2009) 165-176

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Table 8:

Photometric elements of the over contact binary AH Cnc. See text for the details.
Parameter	W	SS	Y	ZZD	YA	Q1	Q2	P	PS1	PS2
Geometric parameters:
i ${({^\circ})}$	65	86	86	82.8	87.6	90.0	90.0	89.5	88.2	88.2(7)
$\Omega_{1,2}$	-	-	2.078	2.037	2.008	2.130	2.088	2.023	2.093	2.093(3)
q	0.75	0.157	0.159	0.149	0.144	0.160	0.168	0.130	0.168	0.168(2)
f (%)	85	70	49	65	87	37	59		56	56
Radiative parameters:
T₁ (K)			6300		6300	6300	6300	6300	6300	6300
T₂ (K)			6100	6354	6525	6179	6265	6368	6275	6275(90)
Albedo^* (A₁ = A₂)			0.5		0.5	0.5	0.5	0.5	0.5	0.5
Gravity brightening^* (g₁=g₂)			0.32		0.32	0.32	0.32	0.25	0.32	0.32
$\left(\frac{l_1}{l_{\rm total}}\right)$ :
_V			0.850	0.830		0.844	0.819		0.790	0.783
_R					0.827				0.792	0.780
_I									0.795	0.783
$\left(\frac{l_3}{l_{\rm total}}\right)$ :
_V							0.007		0.034	0.036
_R									0.031	0.040
_I									0.026	0.035
Fractional radii
$\bar{r}_{1}$			0.561	0.572	0.586	0.5555	0.5603		0.5584	0.5584(14)
$\bar{r}_{2}$			0.258	0.260	0.271	0.2505	0.2658		0.2531	0.2630(60)
Spot parameters:
Colatitude ${({^\circ})}$									113(5)	98(6)
Longitude ${({^\circ})}$									121(7)	105(9)
Spot radius ${({^\circ})}$									35(2)	24(3)
Spot temperature ( $T_{\rm spot}/T_{\rm star}$ )									0.91(1)	0.92(1)
rms									0.018	0.031

Source LaTeX | All tables | In the text

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