MONOS: Multiplicity Of Northern O-type Spectroscopic systems - III. New orbits and Gaia–TESS analysis for ten SB2E systems

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Volume 701 (September 2025)

A&A, 701 (2025) A246

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Table 1

Summary of star information, PHOEBE model fits, orbital fits, and spectral classifications, with the horizontal lines separating the groups.

Star	BD +61 487	HDE 255 312	HD 169 727	BD −13 4929	BD +60 498	GLS 8673	GLS 19 307	BD +55 2840
ALS ID	GLS 7485	GLS 8891	GLS 5046	GLS 4913	GLS 7269	GLS 8673	GLS 19 307	GLS 12 685
$G_{3}^{'}$ $G_3^\prime$ [mag]	9.6125(50)	9.2330(60)	8.9611(52)	9.5989(50)	9.7975(48)	10. 8277(48)	11.4929(52)	9.8474(50)
G_BP,3 – G_RP,3 [mag]	1.0400	1.1578	1.1667	1.0000	0.7740	0.5339	1.8532	0.6972
ϖ_c [mas]	0.180(22)	0.614(31)	0.511(36)	0.619(89)	0.479(36)	0.258(27)	0.230(31)	0.296(29)
d [kpc]	${5.88}_{- 0.69}^{+ 0.90}$ $5.88_{ - 0.69}^{ + 0.90}$	${1.636}_{- 0.079}^{+ 0.087}$ $1.636_{ - 0.079}^{ + 0.087}$	${1.99}_{- 0.13}^{+ 0.15}$ $1.99_{ - 0.13}^{ + 0.15}$	${1.75}_{- 0.24}^{+ 0.34}$ $1.75_{ - 0.24}^{ + 0.34}$	${2.13}_{- 0.15}^{+ 0.18}$ $2.13_{ - 0.15}^{ + 0.18}$	${4.03}_{- 0.40}^{+ 0.50}$ $4.03_{ - 0.40}^{ + 0.50}$	${4.54}_{- 0.57}^{+ 0.77}$ $4.54_{ - 0.57}^{ + 0.77}$	${3.44}_{- 0.32}^{+ 0.40}$ $3.44_{ - 0.32}^{ + 0.40}$

PHOEBE type	Semidet.	Overcont.	Overcont.	Detached	Semidet.	Detached	Detached	Semidet.
P [d]	3.4537(5)	1.46972(5)	2.9302(2)	1.475230(1)	1.07845(2)	2.21910(3)	3.1240(5)	1.9631(2)
Third light	0 (fix)	0 (fix)	0 (fix)	64%	0 (fix)	0 (fix)	0 (fix)	0 (fix)
i [°]	30.5(30)	51.5(25)	33.6(53)	81.7(20)	33.1(41)	68.5(15)	62.5(12)	42.0(32)
sma [R_⊙]	36.1(32)	20.4(7)	33(4)	13.7(1)	14.7(14)	21.1(2)	33.0(3)	22.3(15)
T_{eff 1} [kK]	36.0(5)	39.0(50)	35.2(12)	30.0(16)	31.0(22)	30.0(5)	34.1(9)	34.2(11)
T_{eff 2} [kK]	36.0(11)	31.0(10)	34.0(21)	29.0(20)	18.0(28)	30.0(8)	32.0(13)	32.0(15)
M₁ [M_⊙]	31.5(84)	29.5(31)	28(12)	8.869(68)	29.2(96)	13.91(43)	27.88(91)	22.8(42)
M₂ [M_⊙]	19.3(52)	19.5(20)	17(7)	6.838(52)	7.0(23)	11.61(36)	17.3(56)	14.8(28)
R₁ [R_⊙]	13.1(12)	9.2(3)	14(2)	4.66(2)	6.3(7)	5.0(1)	11.3(1)	9.3(6)
R₂ [R_⊙]	10.4(9)	7.7(3)	12(2)	3.78(2)	4.0(4)	4.50(5)	10.3(2)	7.2(4)
f₁	1.09(7)	1.35(15)	1.77(20)	0.065(69)	–1.0(8)	–2.24(6)	–0.17(8)	1.07(7)
f₂	0.86(7)	–	–	–0.33(9)	1.06(75)	–2.24(6)	0.7(1)	0.82(10)

T₀ [d]	1.88(10)	1.1702(2)	3.278(60)	1.4466(4)	1.4637(43)	1.65(15)	4.117 (fix)	2.26(32)
e	0.167(57)	0 (fix)	0.149(17)	0 (fix)	0 (fix)	0.0067(59)	0 (fix)	0.0098(56)
ω [°]	200(14)	90 (fix)	126.7(72)	90 (fix)	90 (fix)	05(24)	90 (fix)	212(59)
γ₁ [km/s]	–49.4(51)	0.12(27)	17.8(10)	20.06(45)	–74.2(29)	8.0(10)	–6	–39.4(9)
γ₂ [km/s]	–55.3(53)	–0.10(21)	–0.9(13)	20.07(43)	–60.8(76)	10.1(13)	8	–39.2(15)
K₁ [km/s]	102.3(80)	213.60(35)	112.5(20)	201.79(84)	72.8(65)	203.5(12)	176(2)	150.3(36)
K₂ [km/s]	166.2(87)	322.97(33)	183.9(34)	261.72(69)	302.3(154)	243.7(16)	284(4)	231.2(54)
q	0.615(54)	0.6613(13)	0.6118(42)	0.7710(38)	0.241(24)	0.8351(28)	0.619(12)	0.6500(40)

Sp. class 1	Oe	O7 V((f))(n)z	O7.5 Iabfp	B0.2 V	O9.7 V	O9.7 V	O7 II(f)	O7.5 V
Sp. class 2	O	O9.5 V(n)	O7 Iabf	B0.5 V	B4: V(n)	O9.7 V	O8.5 II((f))	ON8.5 IV
B flux fr. 1	50%	55%	25%	18%	90%	50%	70%	50%
B flux fr. 2	50%	45%	75%	18%	10%	50%	30%	50%

Notes. T₀ is the heliocentric Julian date – 2456900. No disentangling was performed for GLS 19307. The binary components for BD −13 4929 are Ba and Bb. The primary (A) has the 64% of the remaining B flux and has a spectral classification of O8 V. The γ uncertainties do not include the possible systematic effects of the cross-correlation with the FASTWIND model.

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