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.
Caution: For completeness, sources are listed if the "detection" exceeds 3 sigma. The significances and images are shown so you can make more stringent significance cuts, if desired.

4FGL J1946.1+2436

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1946.1+2436 Swift-XRT detections in the field for 4FGL J1946.1+2436

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 19 46 56.41 +24 37 54.32 6.31 (5 ± 2) x 10-3 14 3.413 3.241

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 46 21.56 +24 50 04.48 7.97 (2.7 ± 1.0) x 10-3 8 2.206 2.680
2 19 47 02.95 +24 50 53.74 8.62 (2.6 ± 1.0) x 10-3 7 2.357 2.612
3 19 46 23.47 +24 36 08.67 5.53 (1.8 ± 1.1) x 10-3 19 2.538 1.670

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1946.1+2436 Swift-XRT image with known radio, optical and UV sources for 4FGL J1946.1+2436

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2CXO J194613.6+243551 19 46 13.66 +24 35 51.36 1.15 CHANDRA
2 CXOGSG J194606.7+243735 19 46 06.72 +24 37 35.04 1.47 CHANDRA
2CXO J194606.7+243735 19 46 06.77 +24 37 35.76 1.47 CHANDRA
X194606.70+243736.3 19 46 06.70 +24 37 36.48 1.49 CHANDRA
3 X194616.05+243552.8 19 46 16.06 +24 35 52.80 1.67 CHANDRA
4 ChI J194622+2436_3 19 46 15.29 +24 38 32.28 2.76 CHANDRA
5 X194613.26+243901.2 19 46 13.27 +24 39 01.08 3.00 CHANDRA
CXOGSG J194613.2+243901 19 46 13.27 +24 39 01.44 3.00 CHANDRA
6 AX J1946.3+2436 19 46 22.01 +24 36 47.88 3.05 INTEGRAL
AX J194622+2436 19 46 22.32 +24 36 46.80 3.12 ASCA
7 X194619.23+243822.7 19 46 19.22 +24 38 22.56 3.22 CHANDRA
8 X194618.09+243855.3 19 46 18.10 +24 38 55.32 3.44 CHANDRA
CXOGSG J194618.0+243855 19 46 18.10 +24 38 55.32 3.44 CHANDRA
9 X194614.89+243932.3 19 46 14.88 +24 39 32.40 3.61 CHANDRA
10 X194624.74+243606.1 19 46 24.74 +24 36 06.12 3.62 CHANDRA
ChI J194622+2436_1 19 46 24.98 +24 35 46.68 3.70 CHANDRA
11 X194625.71+243821.2 19 46 25.70 +24 38 21.12 4.40 CHANDRA
12 ChI J194622+2436_2 19 46 34.32 +24 37 05.88 5.87 CHANDRA
CXOGSG J194634.3+243705 19 46 34.32 +24 37 05.88 5.87 CHANDRA
2CXO J194634.3+243705 19 46 34.34 +24 37 05.88 5.87 CHANDRA
X194634.35+243706.1 19 46 34.34 +24 37 06.24 5.87 CHANDRA
13 X194639.43+244008.1 19 46 39.43 +24 40 08.04 7.99 CHANDRA

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J194613+243537 19 46 13.70 +24 35 38.04 1.25 NVSS
2 ADG060.9-00.1 19 46 10.39 +24 37 36.12 1.44 DIXON
3 WDS J19463+2437 19 46 18.00 +24 37 00.12 2.23 WDS
4 HD 338941 19 46 13.25 +24 34 00.12 2.42 HDEC
[WBH2005] G60.883-0.129 19 46 20.21 +24 35 24.00 2.70 WBHGP20CM
5 WDS J19463+2438 AB 19 46 18.00 +24 37 59.88 2.76 WDS
WDS J19463+2438 AC 19 46 18.00 +24 37 59.88 2.76 WDS
1944+2427 19 46 19.99 +24 35 03.12 2.78 NORTH6CM
GB6 J1946+2435 19 46 20.50 +24 35 16.08 2.81 GB6
[WBH2005] G60.883-0.131 19 46 20.69 +24 35 21.12 2.83 WBHGP20CM
B2.2 1944+24 19 46 20.69 +24 35 06.00 2.90 DIXON
CGPS J194620+243514 19 46 20.90 +24 35 15.00 2.91 CGPSNGPCAT
WSRTGP 1944+2427 19 46 20.90 +24 35 12.84 2.92 WSRTGP
6 NVSS J194620+243514 19 46 21.00 +24 35 13.92 2.92 NVSS
[WBH2005] G60.880-0.134 19 46 21.00 +24 35 07.08 2.96 WBHGP20CM
MITG J1946+2435a 19 46 21.31 +24 35 03.12 3.06 MITGB6CM
MITG J1946+2435b 19 46 23.11 +24 35 21.12 3.35 MITGB6CM
7 V491 Vul 19 46 22.68 +24 37 48.00 3.53 GCVS
HD 338936 19 46 22.70 +24 37 49.08 3.55 HDEC
8 DCC060.9-00.1 19 46 24.41 +24 37 24.96 3.75 DIXON
9 NVSS J194604+243955 19 46 04.90 +24 39 56.16 3.84 NVSS
S 87 19 46 24.48 +24 37 40.80 3.85 HIIREGION
WDS J19464+2438 19 46 24.00 +24 37 59.88 3.89 WDS
10 Dolidze 53 19 46 22.99 +24 39 05.04 4.32 OPENCLUST
11 MITG J1946+2440a 19 46 03.41 +24 40 37.92 4.60 MITGB6CM
12 WDS J19461+2441 19 46 06.00 +24 40 59.88 4.85 WDS
13 TXS 1943+245 19 46 03.60 +24 41 12.84 5.16 TEXAS
14 NVSS J194630+243802 19 46 30.19 +24 38 03.12 5.20 NVSS
MITG J1946+2440b 19 46 25.51 +24 40 03.00 5.40 MITGB6CM
[WBH2005] G60.922-0.003 19 45 56.40 +24 41 12.84 5.76 WBHGP20CM
WSRTGP 1943+2433 19 45 56.21 +24 41 12.84 5.78 WSRTGP
15 NVSS J194556+244114 19 45 56.40 +24 41 15.00 5.78 NVSS
TGSSADR J194556.4+244114 19 45 56.40 +24 41 15.00 5.78 GMRTAS150M
16 NVSS J194627+244014 19 46 27.31 +24 40 14.16 5.82 NVSS
CGPS J194556+244117 19 45 56.30 +24 41 17.16 5.83 CGPSNGPCAT
VLSSr J194556.4+244120 19 45 56.50 +24 41 20.04 5.86 VLSSR
17 LBN 136 19 46 06.29 +24 42 23.40 6.22 LBN
18 CGPS J194541+243746 19 45 41.40 +24 37 46.92 6.43 CGPSNGPCAT
19 BD+24 3867 19 45 42.55 +24 40 37.56 7.43 ACRS
PPM 109659 19 45 42.58 +24 40 37.92 7.43 PPM
HD 338937 19 45 42.58 +24 40 37.92 7.43 HDEC
SAO 87678 19 45 42.55 +24 40 38.28 7.44 SAO
20 HD 338942 19 46 30.48 +24 29 44.88 8.11 HDEC
21 NVSS J194636+244153 19 46 36.50 +24 41 53.16 8.48 NVSS
22 HD 338930 19 46 13.34 +24 44 54.24 8.77 HDEC
23 HD 338939 19 45 33.98 +24 32 24.36 8.78 HDEC
24 CGPS J194528+243652 19 45 28.20 +24 36 51.84 9.25 CGPSNGPCAT
WSRTGP 1944+2425 19 46 48.41 +24 32 56.04 9.56 WSRTGP
CGPS J194648+243302 19 46 48.60 +24 33 02.16 9.58 CGPSNGPCAT
25 NVSS J194648+243254 19 46 48.41 +24 32 53.88 9.59 NVSS
26 WDS J19455+2432 19 45 30.00 +24 31 59.88 9.78 WDS
27 HD 338940 19 45 41.64 +24 27 05.04 11.01 HDEC
28 PPM 109709 19 46 58.51 +24 33 11.52 11.69 PPM
BD+24 3880 19 46 58.54 +24 33 12.24 11.69 ACRS
SAO 87700 19 46 25.54 +24 47 28.68 11.90 SAO
PPM 109688 19 46 25.58 +24 47 29.40 11.92 PPM
BD+24 3874 19 46 25.56 +24 47 29.76 11.92 ACRS
29 WDS J19463+2448 19 46 18.00 +24 48 00.00 11.98 WDS
30 NVSS J194627+244734 19 46 27.60 +24 47 34.08 12.15 NVSS
31 CGPS J194529+242804 19 45 29.11 +24 28 05.16 12.15 CGPSNGPCAT
32 HD 338943 19 46 44.42 +24 27 04.68 12.19 HDEC
33 WDS J19453+2432 19 45 18.00 +24 31 59.88 12.30 WDS
34 NVSS J194526+242738 19 45 26.81 +24 27 38.16 12.83 NVSS
CGPS J194526+242737 19 45 26.81 +24 27 38.16 12.83 CGPSNGPCAT
CGPS J194524+242724 19 45 24.91 +24 27 24.12 13.31 CGPSNGPCAT
35 V415 Vul 19 46 46.87 +24 46 46.92 13.66 GCVS
36 WDS J19454+2447 19 45 24.00 +24 46 59.88 14.85 WDS

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