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 J0436.9+2915

Field

Detected Excesses

Swift-XRT detections in the field for 4FGL J0436.9+2915

Detected Excesses (SNR(Sosta) > 3.0)

#	R.A. (J2000)	Dec. (J2000)	Pos. Error (")	Rate (cts/s)	Counts	SNR (Detect)	SNR (Sosta)
1	04 37 37.33	+29 23 43.45	5.59	(8 ± 2) x 10^-3	22	4.507	4.028
2	04 36 28.19	+29 22 07.22	7.48	(5 ± 2) x 10^-3	12	3.116	3.129

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	04 36 46.52	+29 18 34.07	7.48	(3.9 ± 1.4) x 10^-3	10	2.932	2.705

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known radio, optical and UV sources for 4FGL J0436.9+2915

Known X-Ray and Gamma Ray Sources

#	Source Name	R.A. (J2000)	Dec. (J2000)	Offset (')	Observatory/Database Table
1	CXOSEXSI J043736.6+292341	04 37 36.65	+29 23 41.64	11.65	CHANDRA
	X043737.04+292343.0	04 37 37.03	+29 23 43.08	11.73	CHANDRA
2	2CXO J043710.0+292653	04 37 10.08	+29 26 53.52	11.75	CHANDRA
	X043736.26+292358.2	04 37 36.26	+29 23 58.20	11.79	CHANDRA
	X043736.77+292400.7	04 37 36.77	+29 24 00.72	11.90	CHANDRA
	X043737.32+292403.0	04 37 37.32	+29 24 02.88	12.01	CHANDRA

Known Radio, Optical and UV Sources

#	Source Name	R.A. (J2000)	Dec. (J2000)	Offset (')	Database Table
1	NVSS J043655+291631	04 36 55.90	+29 16 32.16	1.34	NVSS
2	NVSS J043659+291312	04 36 59.40	+29 13 12.00	2.19	NVSS
3	NVSS J043659+291741	04 36 59.50	+29 17 40.92	2.30	NVSS
4	NVSS J043648+291336	04 36 49.01	+29 13 36.12	2.85	NVSS
5	NVSS J043655+291857	04 36 55.80	+29 18 57.96	3.65	NVSS
6	NVSS J043648+291839	04 36 48.31	+29 18 38.88	4.03	NVSS
7	NVSS J043650+291133	04 36 50.40	+29 11 34.08	4.28	NVSS
8	NVSS J043640+291358	04 36 40.39	+29 13 59.16	4.32	NVSS
9	NVSS J043702+292022	04 37 02.59	+29 20 21.84	5.04	NVSS
10	NVSS J043648+291033	04 36 48.79	+29 10 33.96	5.33	NVSS
11	NVSS J043650+290940	04 36 50.11	+29 09 39.96	6.05	NVSS
12	NVSS J043639+291049	04 36 39.79	+29 10 49.08	6.22	NVSS
13	NVSS J043658+290857	04 36 58.20	+29 08 57.12	6.44	NVSS
14	HD 282342	04 37 25.85	+29 11 54.24	6.79	HDEC
15	HD 283723	04 37 08.38	+29 08 15.72	7.41	HDEC
	PPM 93636	04 37 08.38	+29 08 15.72	7.41	PPM
	BD+28 672	04 37 08.35	+29 08 15.36	7.42	ACRS
	SAO 76674	04 37 08.52	+29 08 14.28	7.44	SAO
16	NVSS J043702+292304	04 37 02.21	+29 23 03.84	7.71	NVSS
17	NVSS J043623+291644	04 36 23.21	+29 16 45.12	7.96	NVSS
18	NVSS J043621+291739	04 36 21.50	+29 17 39.12	8.51	NVSS
	QORG J043621.3+291741	04 36 21.29	+29 17 40.92	8.56	QORGCAT
	HD 282343	04 36 20.88	+29 17 33.00	8.62	HDEC
19	NVSS J043648+290659	04 36 48.70	+29 07 00.12	8.70	NVSS
20	NVSS J043628+290922	04 36 28.70	+29 09 21.96	8.97	NVSS
21	NVSS J043744+291343	04 37 44.50	+29 13 44.04	10.03	NVSS
22	NVSS J043619+291011	04 36 19.70	+29 10 10.92	10.05	NVSS
23	NVSS J043659+292527	04 36 59.81	+29 25 27.84	10.08	NVSS
24	HD 283722	04 36 13.73	+29 07 40.44	12.56	HDEC
	PPM 93625	04 36 13.73	+29 07 40.08	12.56	PPM
	BD+28 669	04 36 13.63	+29 07 40.44	12.58	ACRS
25	NVSS J043751+292138	04 37 51.00	+29 21 38.16	12.93	NVSS
26	NVSS J043607+290417	04 36 07.30	+29 04 18.12	15.84	NVSS