Parallaxes and proper motions of interstellar masers toward the Cygnus X star-forming complex - I. Membership of the Cygnus X region

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Volume 539 (March 2012)

A&A, 539 (2012) A79

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Table 1

Source parameters of the EVN and the VLBA (AFGL 2591) observations.

Source	RA (J2000)	Dec (J2000)	l	b	φ^a	PA^a	Brightness^b	Restoring beam^b
	(h:m:s)	(° : ′ : ′′)	(°)	(°)	(°)	(°)	(Jy beam^-1)	(mas, mas, deg)

W 75N	20:38:36.426	42:37:34.80	81.87	0.78	0	–	0.2−23.8	4.87, 3.65, –50.7
DR 21A	20:39:01.993	42:24:59.29	81.75	0.59	0.2	159.5	0.1−1.4	4.95, 3.80, –50.0
DR 21B	20:39:00.376	42:24:37.11	81.74	0.59	0.2	161.3	0.2−1.3	4.90, 3.77, –52.1
DR 21(OH)	20:39:01.057	42:22:49.18	81.72	0.57	0.2	162.9	0.02−0.15	4.90, 3.80, –51.3
DR 20	20:37:00.962	41:34:55.70	80.86	0.38	1.1	–164.3	0.04−0.8	4.91, 3.82, –50.8
IRAS 20290+4052	20:30:50.673	41:02:27.54	79.74	0.99	2.1	–138.0	0.1−2.3	4.91, 3.74, –48.6
J2045+4341	20:45:07.055	43:41:44.51	83.44	0.50	1.6	48.0	0.0027	6.02, 4.47, –39.8
J2048+4310	20:48:19.521	43:10:42.09	83.41	–0.28	1.8	72.8	0.011	4,87, 3,48, –48.0
J2029+4636	20:29:18.937	46:36:02.25	84.08	4.48	4.3	23.3	0.041	4.71, 3.27, –51.4

AFGL 2591	20:29:24.823	40:11:19.59	78.89	0.71	0	–	17.7	0.80, 0.40, –14.9
J2007+4029	20:07:44.945	40:29:48.60	76.82	4.30	4.1	–63.0	0.992	0.79, 0.40, –18.6
J2033+4000	20:33:03.669	40:00:24.33	79.15	0.04	0.7	125.0	0.025	0.81, 0.40, –17.9
J2032+4057	20:32:25.771	40:57:27.83	79.85	0.70	1.0	36.8	–	–
J2033+4040	20:32:45.342	40:39:38.12	79.85	0.70	0.8	53.5	–	–

Notes.

^(a)

Separation, φ, and position angles (east of north), PA, between the phase reference sources, maser W 75 N or AFGL 2591, and the target.

^(b)

The brightness and restoring beam size (east of north) are listed for the first epoch.

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