On the origin of LS 5039 and PSR J1825−1446 | Astronomy & Astrophysics (A&A)

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Table 6

Astrometry and fit residuals of LS 5039 for optical and radio projects.

Project	MJD	Epoch	φ_orb	α_J2000	σ_αcosδ	δ_J2000	σ_δ	Res._αcosδ	Res._δ
		Y-M-D		[h, m, s]	[mas]	[°, ′, ′′]	[mas]	[mas]	[mas]


AC2000.2 (O)	17 408.47	1906-07-17	0.8(2)	18 26 15.015(8)	120	− 14 50 53.27(11)	110	40	160
USNO-A2.0 (O)	33 857.61	1951-07-30	0.0(1)	18 26 15.034(17)	260	− 14 50 53.59(25)	250	10	230
TAC2.0 (O)	44 050.66	1979-06-26	0.57(5)	18 26 15.056(5)	80	− 14 50 54.08(5)	50	140	−8
GSC1.2 (O)	46 669.35	1986-08-27	0.99(4)	18 26 15.06(2)	300	− 14 50 54.3(3)	300	80	−145
Tycho-2 (O)	48 559.95	1991-10-30	0.01(3)	18 26 15.043(10)	150	− 14 50 54.23(12)	120	−150	−55
AP357 (R)	50 913.00	1998-04-10	0.43(2)	18 26 15.0559(7)	10	− 14 50 54.240(10)	10	5.5	−8.1
2MASS (O)	51 401.02	1999-08-11	0.37(2)	18 26 15.056(4)	60	− 14 50 54.23(6)	60	−7.3	18
UCAC1 (O)	51 649.00	2000-04-15	0.85(2)	18 26 15.0563(9)	13	− 14 50 54.277(13)	13	−2.9	−28
GR021A (R)	51 698.40	2000-06-03	0.49(2)	18 26 15.05645(10)	1.5^a	− 14 50 54.2512(15)	2^b	−1.6	−0.5
AP453 (R)	52 856.20	2003-08-05	0.92(2)	18 26 15.05812(11)	1.6	−14 50 54.280(2)	2	1.0	−1.6
BD087G (R)	53 167.35	2004-06-11	0.58(2)	18 26 15.05831(14)	2^a	−14 50 54.2865(20)	2^b	−2.3	−0.7
BD105A (R)	53 532.35	2005-06-11	0.02(2)	18 26 15.05890(8)	1.3^a	−14 50 54.2964(14)	1.4^b	−0.4	−1.7
BD105G (R)	53 764.71	2006-01-29	0.51(2)	18 26 15.05916(7)	1.1^a	−14 50 54.2996(12)	1.2^b	−1.1	0.6
EF018A–C (R)	54 160.71	2007-03-01	0.89(2)	18 26 15.0597(2)	4^a	−14 50 54.3092(12)	1.2^b	−0.2	0.5
BR127A–E (R)	54 290.27	2007-07-09	0.06(2)	18 26 15.06003(8)	1.3^a	−14 50 54.3096(12)	1.2^b	1.8	3.3
EM085 (R)	55 635.15	2011-03-15	0.37(2)	18 26 15.06184(8)	1.3^a	−14 50 54.3452(20)	2.0^b	2.7	−0.2
BC196 (R)	55 803.13	2011-08-30	0.37(2)	18 26 15.06188(7)	1.1^a	−14 50 54.3511(14)	1.4^b	1.4	−2.0

Notes.

^(a)

An additional uncertainty of 0.9 mas in right ascension due to the global astrometry errors on the phase-reference source position should be included when considering this position in the ICRF.

^(b)

The phase-reference source has an additional uncertainty of 1.4 mas in declination in the ICRF.

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