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.

3FGL J0838.9-4056c

Field

Detected Excesses

Swift-XRT detections in the field for 3FGL J0838.9-4056c

Detected Excesses (SNR(Sosta) > 3.0)

#	R.A. (J2000)	Dec. (J2000)	Pos. Error (")	Rate (cts/s)	Counts	SNR (Detect)	SNR (Sosta)
1	08 38 30.33	-40 59 11.31	6.41	(5 ± 2) x 10^-3	16	3.483	3.330
2	08 38 48.92	-40 51 19.82	7.27	(4.3 ± 1.4) x 10^-3	13	3.023	3.120

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	08 38 36.26	-40 41 29.89	8.27	(2.7 ± 1.0) x 10^-3	8	2.509	2.629
2	08 38 41.75	-41 01 15.38	7.71	(2.2 ± 1.1) x 10^-3	9	2.349	2.084
3	08 38 15.35	-40 57 02.95	8.62	(1.4 ± 0.8) x 10^-3	6	2.170	1.728

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known radio, optical and UV sources for 3FGL J0838.9-4056c

Known X-Ray and Gamma Ray Sources

#	Source Name	R.A. (J2000)	Dec. (J2000)	Offset (')	Observatory/Database Table
1	1BMW 083859.1-405755	08 38 59.06	-40 57 54.72	1.64	ROSAT
2	1RXH J083849.0-405121	08 38 49.08	-40 51 21.60	5.24	ROSAT
	1RXH J083849.0-405120	08 38 49.06	-40 51 20.88	5.25	ROSAT
	1BMW 083848.9-405119	08 38 48.94	-40 51 18.36	5.30	ROSAT
	1BMW 083848.4-405117	08 38 48.38	-40 51 16.92	5.36	ROSAT
3	1BMW 083816.4-405657	08 38 16.42	-40 56 56.76	8.03	ROSAT
4	1BMW 083823.2-404849	08 38 23.21	-40 48 48.96	10.04	ROSAT
5	1RXS J083953.9-405216	08 39 53.90	-40 52 16.68	11.16	ROSAT
6	1BMW 083818.7-404716	08 38 18.74	-40 47 15.72	11.77	ROSAT

Known Radio, Optical and UV Sources

#	Source Name	R.A. (J2000)	Dec. (J2000)	Offset (')	Database Table
1	PPM 756091	08 38 53.04	-40 54 30.96	2.06	PPM
2	MGPS J083917-405832	08 39 17.11	-40 58 32.16	4.13	MGPS2
	TGSSADR J083917.1-405835	08 39 17.11	-40 58 36.12	4.17	GMRTAS150M
3	PGCC G260.65+0.32	08 39 18.91	-40 59 12.12	4.81	PLANCKGCC
4	PGCC G260.51+0.35	08 38 59.81	-40 51 14.04	5.04	PLANCKGCC
5	WDS J08388-4101	08 38 48.00	-41 01 00.12	5.15	WDS
6	QORG J083849.0-405120	08 38 49.01	-40 51 20.16	5.27	QORGCAT
7	PPM 756089	08 38 40.94	-41 01 02.28	5.84	PPM
8	MGPS J083842-410311	08 38 42.29	-41 03 11.16	7.59	MGPS2
9	PMN J0838-4048	08 38 48.00	-40 48 36.00	7.93	PMN
10	PMN J0838-4052	08 38 20.50	-40 52 41.88	8.06	PMN
11	MGPS J083851-404745	08 38 51.70	-40 47 45.96	8.61	MGPS2
	TGSSADR J083851.8-404744	08 38 51.79	-40 47 44.88	8.62	GMRTAS150M
12	MGPS J083809-405514	08 38 09.31	-40 55 14.16	9.40	MGPS2
13	PGCC G260.42+0.42	08 38 59.21	-40 44 54.96	11.36	PLANCKGCC
14	WDS J08383-4106	08 38 18.00	-41 06 00.00	12.40	WDS
15	CTB 27	08 39 25.51	-40 44 39.12	12.67	DIXON
16	TGSSADR J083934.3-410720	08 39 34.30	-41 07 21.00	12.95	GMRTAS150M
	MGPS J083934-410727	08 39 34.10	-41 07 27.84	13.03	MGPS2
17	PMN J0838-4045	08 38 21.79	-40 45 05.04	13.19	PMN
18	SAO 220247	08 40 00.60	-41 06 45.00	15.68	SAO
	HIP 42508	08 40 00.84	-41 06 44.64	15.71	HIPPARCOS
	CD-40 4497	08 40 00.79	-41 06 46.08	15.72	ACRS
	PPM 313383	08 40 00.86	-41 06 45.36	15.72	PPM
	HD 74040	08 40 00.86	-41 06 45.72	15.72	HIC