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 J1948.0-2845

Field

Detected Excesses

Swift-XRT detections in the field for 4FGL J1948.0-2845

Detected Excesses (SNR(Sosta) > 3.0)

#	R.A. (J2000)	Dec. (J2000)	Pos. Error (")	Rate (cts/s)	Counts	SNR (Detect)	SNR (Sosta)
1	19 48 34.20	-28 35 26.73	6.21	(6 ± 2) x 10^-3	16	3.570	3.567

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	19 48 20.42	-28 51 01.98	6.78	(2.8 ± 1.1) x 10^-3	11	2.791	2.639
2	19 48 30.47	-28 41 41.50	6.93	(2.8 ± 1.1) x 10^-3	9	2.610	2.548
3	19 48 15.05	-28 43 59.14	7.09	(2.9 ± 1.2) x 10^-3	9	2.396	2.430
4	19 47 52.99	-28 49 37.25	6.41	(2.4 ± 1.0) x 10^-3	11	2.433	2.395
5	19 47 36.85	-28 42 55.08	5.82	(1.7 ± 1.0) x 10^-3	14	2.268	1.761

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known radio, optical and UV sources for 4FGL J1948.0-2845

Known X-Ray and Gamma Ray Sources

#	Source Name	R.A. (J2000)	Dec. (J2000)	Offset (')	Observatory/Database Table
1	2RXS J194827.0-284146	19 48 27.07	-28 41 47.04	5.97	ROSAT
	2RXS J194827.0-284146	19 48 27.07	-28 41 47.04	5.97	ROSAT
	1RXS J194827.1-284147	19 48 27.10	-28 41 47.04	5.97	ROSAT

Known Radio, Optical and UV Sources

#	Source Name	R.A. (J2000)	Dec. (J2000)	Offset (')	Database Table
1	SAO 188590	19 48 30.70	-28 41 44.88	6.65	SAO
	CD-2816180	19 48 30.62	-28 41 41.64	6.67	ACRS
	PPM 270304	19 48 30.65	-28 41 42.00	6.67	PPM
	TGSSADR J194825.0-284013	19 48 25.01	-28 40 13.08	6.67	GMRTAS150M
2	NVSS J194825-284014	19 48 25.30	-28 40 14.88	6.69	NVSS
	GLEAM J194825-284017	19 48 25.80	-28 40 17.04	6.73	GLEAMEGCAT
3	PGC 736566	19 47 47.90	-28 51 20.88	7.19	PGC2003
4	NVSS J194826-283903	19 48 25.99	-28 39 03.96	7.70	NVSS
5	NVSS J194732-284816	19 47 32.11	-28 48 15.84	7.77	NVSS
6	PGC 739349	19 48 21.50	-28 37 51.96	8.19	PGC2003
7	NVSS J194732-285001	19 47 32.11	-28 50 00.96	8.62	NVSS
8	NVSS J194807-285430	19 48 07.30	-28 54 29.88	9.34	NVSS
	TGSSADR J194807.5-285430	19 48 07.61	-28 54 29.88	9.35	GMRTAS150M
	GLEAM J194807-285434	19 48 07.51	-28 54 34.92	9.42	GLEAMEGCAT
	TGSSADR J194722.8-284819	19 47 22.80	-28 48 20.16	9.70	GMRTAS150M
9	NVSS J194722-284820	19 47 22.70	-28 48 20.16	9.74	NVSS
10	NVSS J194742-285508	19 47 42.91	-28 55 08.04	11.05	NVSS
11	SAO 188594	19 48 39.96	-28 53 58.92	11.71	SAO
	CD-2916537	19 48 39.89	-28 54 00.36	11.71	ACRS
	PPM 270307	19 48 39.86	-28 54 00.36	11.71	PPM
12	925- 50	19 48 41.30	-28 36 28.44	11.84	NLTT
13	NVSS J194830-283442	19 48 30.10	-28 34 41.88	11.87	NVSS
	TGSSADR J194830.2-283442	19 48 30.19	-28 34 42.96	11.87	GMRTAS150M
14	NVSS J194735-285514	19 47 35.30	-28 55 14.16	11.95	NVSS
	GLEAM J194831-283443	19 48 31.51	-28 34 42.96	12.00	GLEAMEGCAT
15	DENISP_G_J1948462-283456	19 48 46.20	-28 34 55.92	13.71	DENISIGAL
	PGC 161727	19 48 47.21	-28 35 00.96	13.79	PGC2003
16	NVSS J194713-285458	19 47 13.39	-28 54 57.96	14.90	NVSS