Swift-XRT Survey of Fermi Unassociated Sources

These results are part of the Swift program to follow-up Fermi unassociated sources in an attempt to find X-ray counterparts to the unidentified gamma-ray sources. As new observations are performed, these pages will be updated in nearly real time. Please use these results as a guide and proceed with caution when using them in a publication since they are the result of an automated analysis.

When using these data and results in publications, please reference M.C. Stroh & A.D. Falcone 2013, ApJS, 207, 28; arXiv: 1305.4949 for a description of many of the analysis techniques used to reduce these data (note: a more detailed paper describing the complete data set and analysis is forthcoming). Please contact Abe Falcone and Michael Stroh at unassociated@swift.psu.edu if you have any questions about the program or the analysis, or to simply to let us know that you've made use of these data.

4FGL J1256.8+5329

Field

Detected Excesses

Swift-XRT detections in the field for 4FGL J1256.8+5329

Detected Excesses (SNR(Sosta) > 3.0)

#	R.A. (J2000)	Dec. (J2000)	Pos. Error (")	Rate (cts/s)	Counts	SNR (Detect)	SNR (Sosta)
1	12 56 30.55	+53 32 02.66	5.44	(8 ± 2) x 10^-3	30	4.759	4.819
2	12 55 47.26	+53 34 26.18	5.82	(4.0 ± 1.2) x 10^-3	18	3.690	3.339

Rejected Excesses (Due to Overlaps or SNR(Sosta) < 3.0)

#	R.A. (J2000)	Dec. (J2000)	Pos. Error (")	Rate (cts/s)	Counts	SNR (Detect)	SNR (Sosta)
1	12 56 30.43	+53 42 42.68	5.76	(3.0 ± 1.2) x 10^-3	10	2.481	2.497
2	12 56 45.89	+53 21 47.01	7.27	(2.1 ± 0.9) x 10^-3	9	2.333	2.327

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1256.8+5329

No known X-ray or gamma ray sources found.

Known Radio, Optical and UV Sources

#	Source Name	R.A. (J2000)	Dec. (J2000)	Offset (')	Database Table
1	NVSS J125642+532746	12 56 42.50	+53 27 47.16	1.70	NVSS
2	PGC 2441643	12 56 56.21	+53 27 28.08	1.94	PGC2003
3	FIRST J125636.3+532550	12 56 36.41	+53 25 50.16	3.82	FIRST
	7C 125427.0+535034	12 56 38.90	+53 34 21.00	5.46	UC7C151MHZ
	GB6 J1256+5334	12 56 37.01	+53 34 17.04	5.48	GB6
	CRATES J125637+533417	12 56 38.59	+53 34 23.88	5.51	CRATES
	TXS 1254+538	12 56 38.30	+53 34 23.16	5.51	TEXAS
4	NVSS J125638+533423	12 56 38.59	+53 34 23.88	5.51	NVSS
	FIRST J125638.6+533423	12 56 38.59	+53 34 23.88	5.51	FIRST
	QORG J125638.6+533424	12 56 38.59	+53 34 23.88	5.52	QORGCAT
	WN 1254.4+5350	12 56 38.59	+53 34 23.88	5.52	WENSS
	TGSSADR J125638.5+533424	12 56 38.59	+53 34 23.88	5.52	GMRTAS150M
	VLSSr J125638.1+533427	12 56 38.21	+53 34 27.84	5.60	VLSSR
5	1254+5350	12 56 34.99	+53 34 27.12	5.75	NORTH6CM
	1254+5350	12 56 34.99	+53 34 27.12	5.75	NORTH20CM
6	PGC 2440059	12 56 24.00	+53 24 05.04	6.30	PGC2003
	1255+5351	12 57 12.29	+53 34 53.04	6.69	NORTH20CM
	1255+5351	12 57 12.29	+53 34 53.04	6.69	NORTH6CM
	TGSSADR J125713.3+533450	12 57 13.30	+53 34 50.16	6.73	GMRTAS150M
	FIRST J125713.4+533450	12 57 13.39	+53 34 50.16	6.74	FIRST
7	NVSS J125713+533450	12 57 13.80	+53 34 50.88	6.77	NVSS
8	FIRST J125630.0+533515	12 56 30.00	+53 35 15.00	6.77	FIRST
	WN 1255.0+5351	12 57 13.80	+53 34 50.88	6.78	WENSS
9	ATATS J125711+533511	12 57 11.21	+53 35 11.04	6.87	ATATS
	FIRST J125717.5+533522	12 57 17.50	+53 35 21.84	7.52	FIRST
10	NVSS J125719+533527	12 57 19.61	+53 35 27.96	7.76	NVSS
11	PGC 2440697	12 56 00.41	+53 25 24.96	8.19	PGC2003
12	PGC 2444364	12 57 40.10	+53 33 24.84	8.67	PGC2003
13	NVSS J125738+533422	12 57 38.90	+53 34 23.16	9.04	NVSS
	QORG J125739.1+533421	12 57 39.10	+53 34 21.00	9.05	QORGCAT
	FIRST J125739.1+533421	12 57 39.10	+53 34 21.00	9.05	FIRST
14	MCG+09-21-069	12 56 41.76	+53 38 45.60	9.70	MCG
15	PGC 2443420	12 57 56.21	+53 31 23.88	10.19	PGC2003
16	PGC 44168	12 56 41.40	+53 39 19.08	10.26	PGC2003
17	PGC 2445516	12 57 44.50	+53 35 48.84	10.57	PGC2003
	PGC 2445585	12 57 44.30	+53 35 58.92	10.66	PGC2003
18	MCG+09-21-070	12 57 41.52	+53 37 48.00	11.63	MCG
19	PGC 44347	12 57 44.81	+53 38 12.84	12.26	PGC2003
20	PGC 2438041	12 55 41.40	+53 19 50.88	13.74	PGC2003