Ephemeris, orbital decay, and masses of ten eclipsing high-mass X-ray binaries

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Volume 577 (May 2015)

A&A, 577 (2015) A130

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Table 7

Input and output parameters for the MC simulations used to finally estimate the mass of the NSs hosted in the ten HMXBs.

		Input					Output

Source	K_x	K_opt	q	Ω	i	M_ns	M_opt	R_opt	R_L/a	a

	km s^-1	km s^-1			deg	M_⊙	M_⊙	R_⊙		R_⊙

LMC X-4	407.8(3)	35(2)^a	0.086(4)	0.97(13)^a	59.3(9)	1.57(11)	18(1)	7.4(4)	0.59(1)	14.2(2)^j
Cen X-3	414.317(9)	28(2)^a	0.066(5)	0.75(13)^a	65(1)	1.57(16)	24(1)	11.4(7)	0.63(1)	20.2(4)
4U 1700-377^*	435(10)	19(1)^b	0.043(2)	0.47(4)^cc	62(1)	1.96(19)	46(5)	22(2)	0.694(6)	35(1)
4U 1538-522	316(10)	20(3)^c	0.06(1)	0.91(20)^k	67(1)	1.02(17)	16(2)	13(1)	0.53(3)	22(1)^j
SMC X-1	299.631(5)	20(1)^a	0.067(4)	0.91(20)^a	62(2)	1.21(12)	18(2)	15(1)	0.61(2)	27.9(7)^j
SAX J1802.7-2017	324(5)	24(3)^d	0.07(1)	0.91(20)^m	72(2)	1.57(25)	22(2)	18(1)	0.61(2)	33(1)
XTE J18f55-026	289(5)	20(3)^l	0.07(1)	0.91(20)^m	71(2)	1.41(24)	21(2)	22(2)	0.63(3)	40(1)^j
Vela X-1	278.1(3)	23(2)^e	0.081(5)	0.67(4)^hⁱ	72.8(4)	2.12(16)	26(1)	29(1)	0.595(6)	59.6(7)^j
EXO 1722-363	226(2)	25(5)^f	0.11(2)	0.91(20)^m	68(2)	1.91(45)	18(2)	26(2)	0.58(3)	52(2)
OAO 1657-415	222.60(6)	21(4)^g	0.09(1)	0.91(20)^m	67.9(9)	1.74(30)	17.5(8)	25(2)	0.52(2)	53.1(8)^j

Notes. We indicate in brackets the uncertainties at 1σ c.l. on the last digits of each reported value.

^(a)

van der Meer et al. (2007);

^(b)

Hammerschlag-Hensberge et al. (2003);

^(c)

van Kerkwijk et al. (1995a, see reference therein),

^(cc)

v_rotsin i = 150(10) km s^-1 (Clark et al., 2002);

^(d)

Mason et al. (2011);

^(e)

Quaintrell et al. (2003);

^(f)

Mason et al. (2010),

^(g)

Mason et al. (2012);

^(h)

Howarth et al. (1997);

⁽ⁱ⁾

Zuiderwijk (1995);

^(j)

evaluated at periastron;

^(k)

we used the same Ω as for SMC X-1 since the values of v_rotsin i for these systems are compatible to within the uncertainties (see also Rawls et al. 2011);

^(l)

we assumed a value of K_opt derived from the average of the other systems in this table with properties close to XTE J1855-026;

^(m)

we assume a conservative Ω value to be close to the Roche lobe radius;

^(*)

we treat 4U 1700-377 differently, since the project semi-major axis, a_xsini, is unknown; see Sect. 5.1.

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