Detection of new point sources in WMAP cosmic microwave background maps at high Galactic latitude - A new technique to extract point sources from CMB maps

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Table 1

New detected sources and possible counterparts.

			Possible counterpart

#	l (°)	b (°)	ID	l (°)	b (°)	d (′)	Type

1	262.44	−42.41	MRC 0427−539B	262.45	−42.41	0.39	RadioS
			SUMSS J042900−534934	262.42	−42.37	2.51	RadioS
			IC 2082	262.42	−42.35	3.49	Gpair
			J042908−534940^*	262.42	−42.35
			ABELL S0463	262.29	−42.36	7.21	GClstr

2	250.75	−41.81	APMCC 521	250.71	−41.78	2.73	GClstr
			1651^**	250.84	−41.84
			PKS 0437−454	250.85	−41.76	5.47	VisS
			J043900−452222^*	250.85	−41.76

3	287.17	−52.71	SUMSS J021241−615218	287.26	−52.71	3.23	RadioS
			SUMSS J021309−615429	287.21	−52.65	3.43	RadioS
			832**	286.98	−52.65
			PKS 0212−620	286.96	−52.66	8.31	VisS^***
			J021416−614933^*	286.96	−52.66

4	283.11	−45.29	SUMSS J031459−655454	283.06	−45.28	2.50	RadioS
			SUMSS J031406−654955	283.05	−45.40	7.03	RadioS
			SUMSS J031431−660346	283.26	−45.21	7.63	RadioS
			PKS 0313−66019.0	283.00	−45.40	7.94	QSO
			J031422−654824^*	283.00	−45.40
			SUMSS J031554−655309	282.94	−45.23	8.29	RadioS
			SUMSS J031558−660153	283.08	−45.13	9.95	RadioS

5	283.31	−51.26	SUMSS J023639−613721	283.25	−51.30	3.19	RadioS
			PKS 0235−618	283.20	−51.29	4.65	QSO
			J023653−613615^*	283.20	−51.29
			SUMSS J023738−614223	283.19	−51.16	7.40	RadioS
			SUMSS J023706−613048	283.07	−51.35	10.31	RadioS

6	275.89	−47.85	SUMSS J032427−602924	275.92	−47.82	1.89	RadioS
			SUMSS J032356−602410	275.86	−47.93	4.74	RadioS
			PKS 0322−605	275.93	−47.97	7.64	RadioS
			SUMSS J032518−603151	275.88	−47.71	8.05	RadioS
			SUMSS J032331−602102	275.84	−48.00	9.17	RadioS
			PMN J0323−6026	276.00	−47.98	9.27	QSO
			J032308−602632^*	276.00	−47.98
			SUMSS J032308−602511	275.97	−48.00	9.55	RadioS
			SUMSS J032249−602546	276.01	−48.02	11.72	RadioS

7	278.33	−56.45	PKS 0226−559	278.23	−56.47	3.48	QSO
			J022821−554603^*	278.23	−56.47
			912^**	278.43	−56.51
			SUMSS J022736−555231	278.50	−56.45	5.70	RadioS
			SUMSS J022827−555607	278.41	−56.33	7.50	RadioS
			SUMSS J022847−555437	278.32	−56.32	7.75	RadioS
			SUMSS J022805−553922	278.15	−56.57	9.70	RadioS
			PMN J0228−538	278.06	−56.57	11.76	RadioS
			J022820−553725^*	278.06	−56.57

Notes. First column corresponds to the number of the new sources identified by arrows in Figs. 5 and 6 with the galactic coordinates (in degrees) in the second and third column. The fourth, fifth and sixth columns are the object name (ID) and galactic coordinates (in degrees) of the possible counterparts found in the NED database within a search radius of 12 arcmin. The ID and coordinates of the possible counterparts in the AT20G and NEWPS 5yr 3-sigma surveys is also present. The seventh column gives the distance (in arcminutes) between the WMAP coordinates and those of the possible counterparts and the last column gives the type of object.

^(*)

AT20G Survey;

^(**)

NEWPS 5yr 3-sigma Survey;

^(***)

QSO candidate.

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