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 J1834.9-0800

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1834.9-0800 Swift-XRT detections in the field for 4FGL J1834.9-0800

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 35 13.23 -08 14 56.32 3.80 (3.5 ± 0.6) x 10-3 130 10.190 5.792
2 18 35 24.69 -07 54 40.17 4.90 (1.6 ± 0.4) x 10-3 33 4.483 4.392
3 18 34 25.96 -08 05 52.73 4.59 (9 ± 3) x 10-4 29 3.711 3.338
4 18 34 45.67 -08 01 38.46 4.78 (10 ± 3) x 10-4 35 3.301 3.323
5 18 35 41.56 -07 56 02.75 5.28 (7 ± 2) x 10-4 20 2.863 3.168
6 18 34 30.05 -08 11 10.39 4.95 (7 ± 2) x 10-4 21 3.466 3.103

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 18 35 13.22 -08 14 56.18 3.80 (3.2 ± 0.6) x 10-3 131 9.037 5.611
2 18 35 13.23 -08 14 55.91 3.80 (3.2 ± 0.6) x 10-3 131 9.361 5.551
3 18 34 24.91 -07 54 49.41 4.92 (5 ± 2) x 10-4 19 2.519 2.289
4 18 35 07.34 -08 10 22.36 4.74 (4 ± 2) x 10-4 30 2.587 2.071

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1834.9-0800 Swift-XRT image with known radio, optical and UV sources for 4FGL J1834.9-0800

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 AX J1834.6-0801 18 34 40.99 -08 01 59.88 4.66 INTEGRAL
AX J183440-0801 18 34 40.56 -08 01 58.80 4.76 ASCA
2 AX J183506-0806 18 35 06.72 -08 06 28.80 6.56 ASCA
AX J1835.1-0806 18 35 07.01 -08 06 29.88 6.60 INTEGRAL
3 AX J1835.3-0754 18 35 18.00 -07 54 42.12 7.36 INTEGRAL
AX J183518-0754 18 35 18.24 -07 54 39.60 7.43 ASCA
4 2CXO J183527.8-080303 18 35 27.82 -08 03 03.24 7.79 CHANDRA
5 2CXO J183427.5-075840 18 34 27.55 -07 58 40.44 7.81 CHANDRA
6 2CXO J183529.1-075651 18 35 29.18 -07 56 51.72 8.33 CHANDRA
7 ChI J183518-0754_1 18 35 24.43 -07 54 38.16 8.54 CHANDRA
2CXO J183524.4-075438 18 35 24.46 -07 54 38.16 8.54 CHANDRA
8 2E 1832.4-0812 18 35 08.86 -08 09 39.24 9.75 EINSTEIN
2E 1832.4-0812 18 35 08.83 -08 09 39.96 9.75 EINSTEIN
9 238 18 34 25.46 -08 05 54.96 9.94 EINSTEIN
10 2CXO J183537.8-080428 18 35 37.85 -08 04 28.56 10.62 CHANDRA

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J183459-080022 18 34 59.59 -08 00 23.04 0.32 NVSS
2 NVSS J183451-080027 18 34 51.10 -08 00 27.00 1.83 NVSS
3 MAGPIS Discrete G23.91111+0.01 18 34 49.51 -08 00 54.00 2.31 MAGPIS
[WBH2005] G23.911+0.014 18 34 49.51 -08 00 54.00 2.31 WBHGP6CM
4 NVSS J183455-075712 18 34 55.20 -07 57 11.88 3.16 NVSS
5 GPA 023.89-0.06 18 35 01.70 -08 04 13.08 4.05 GPA
6 PPM 201879 18 34 56.52 -07 56 10.68 4.10 PPM
7 MAGPIS Discrete G23.86257+0.00 18 34 45.00 -08 03 36.00 4.72 MAGPIS
8 NVSS J183441-080302 18 34 41.11 -08 03 02.16 5.12 NVSS
9 [WBH2005] G24.023+0.002 18 35 04.70 -07 55 18.12 5.19 WBHGP6CM
MAGPIS Discrete G24.02330+0.00 18 35 04.70 -07 55 15.96 5.22 MAGPIS
10 NVSS J183445-080427 18 34 45.79 -08 04 27.84 5.24 NVSS
MAGPIS Diffuse G23.9000+0.0667 18 34 37.20 -08 00 11.16 5.26 MAGPIS
[WBH2005] G23.898+0.065 18 34 37.20 -08 00 11.88 5.27 WBHGP6CM
[WBH2005] G23.898+0.065 18 34 37.20 -08 00 11.16 5.27 WBHGP20CM
MAGPIS Discrete G23.89811+0.06 18 34 37.10 -08 00 11.16 5.28 MAGPIS
MAGPIS Discrete G23.89696+0.06 18 34 37.10 -08 00 15.12 5.30 MAGPIS
[WBH2005] G23.897+0.065 18 34 37.01 -08 00 15.84 5.31 WBHGP6CM
11 NVSS J183437-075957 18 34 37.01 -07 59 57.84 5.32 NVSS
12 [WBH2005] G23.987-0.089 18 35 20.21 -07 59 40.92 5.41 WBHGP6CM
MAGPIS Discrete G23.98735-0.08 18 35 20.21 -07 59 40.92 5.42 MAGPIS
MAGPIS Diffuse G23.9875-0.1000 18 35 20.30 -07 59 40.92 5.44 MAGPIS
13 NVSS J183438-075733 18 34 38.71 -07 57 33.84 5.59 NVSS
14 NVSS J183522-075933 18 35 22.51 -07 59 34.08 5.99 NVSS
15 NVSS J183445-075429 18 34 45.00 -07 54 29.16 6.66 NVSS
16 NVSS J183431-075736 18 34 31.80 -07 57 36.00 7.11 NVSS
[WBH2005] G23.873-0.119 18 35 13.99 -08 06 38.16 7.45 WBHGP20CM
17 NVSS J183513-080644 18 35 13.70 -08 06 43.92 7.50 NVSS
[WBH2005] G23.872-0.120 18 35 14.21 -08 06 39.96 7.50 WBHGP6CM
[WBH2005] G23.868-0.118 18 35 13.10 -08 06 50.04 7.52 WBHGP20CM
[WBH2005] G23.868-0.118 18 35 13.10 -08 06 51.12 7.53 WBHGP6CM
[WBH2005] G23.868-0.120 18 35 13.61 -08 06 54.00 7.63 WBHGP20CM
PMN J1835-0806 18 35 13.90 -08 06 52.92 7.65 PMN
[WBH2005] G23.868-0.121 18 35 13.80 -08 06 54.00 7.67 WBHGP6CM
[WBH2005] G23.871-0.123 18 35 14.59 -08 06 48.96 7.67 WBHGP20CM
[WBH2005] G23.871-0.123 18 35 14.59 -08 06 48.96 7.68 WBHGP6CM
MAGPIS Diffuse G23.8667-0.1167 18 35 14.40 -08 06 50.04 7.68 MAGPIS
18 MAGPIS Discrete G23.99277+0.10 18 34 39.50 -07 54 06.12 7.74 MAGPIS
19 NVSS J183444-075319 18 34 44.50 -07 53 18.96 7.75 NVSS
SG 023.9-00.1 18 35 14.21 -08 06 56.88 7.76 DIXON
20 MAGPIS Discrete G23.86135-0.12 18 35 13.90 -08 07 23.16 8.09 MAGPIS
[WBH2005] G23.862-0.125 18 35 13.99 -08 07 23.16 8.10 WBHGP6CM
21 PGCC G24.06+0.05 18 34 59.90 -07 51 52.92 8.38 PLANCKGCC
22 MAGPIS Discrete G23.97515-0.15 18 35 32.40 -08 02 04.92 8.61 MAGPIS
23 NVSS J183428-080502 18 34 28.51 -08 05 03.12 8.84 NVSS
24 GD 023.9+00.1 18 34 25.01 -07 56 53.88 8.93 DIXON
25 NVSS J183421-080228 18 34 21.91 -08 02 27.96 9.33 NVSS
MAGPIS Diffuse G23.8361+0.1042 18 34 21.79 -08 02 26.88 9.33 MAGPIS
PMN J1834-0754 18 34 26.40 -07 54 57.96 9.54 PMN
26 MAGPIS Discrete G23.91567-0.17 18 35 30.60 -08 05 52.08 9.73 MAGPIS
27 MAGPIS Discrete G23.90075-0.17 18 35 28.61 -08 06 37.08 9.80 MAGPIS
[WBH2005] G23.956+0.149 18 34 25.51 -07 54 46.08 9.84 WBHGP6CM
MAGPIS Diffuse G23.9569+0.1528 18 34 25.39 -07 54 43.92 9.87 MAGPIS
[WBH2005] G23.955+0.150 18 34 25.30 -07 54 47.16 9.88 WBHGP20CM
[WBH2005] G23.954+0.151 18 34 25.01 -07 54 51.12 9.90 WBHGP20CM
28 NVSS J183420-080335 18 34 20.81 -08 03 34.92 9.90 NVSS
[WBH2005] G23.954+0.151 18 34 24.91 -07 54 50.04 9.92 WBHGP6CM
29 SAO 142396 18 34 25.61 -08 05 56.04 9.92 SAO
PPM 201868 18 34 25.51 -08 05 54.96 9.93 PPM
BD-08 4634 18 34 25.51 -08 05 54.96 9.93 ACRS
BD -08 4634 18 34 25.51 -08 05 54.96 9.93 OSTARS
30 NVSS J183424-075442 18 34 25.01 -07 54 42.84 9.97 NVSS
GS 024.0+00.2 18 34 24.00 -07 54 42.12 10.18 DIXON
31 [WBH2005] G23.959+0.159 18 34 23.59 -07 54 20.88 10.45 WBHGP6CM
32 NVSS J183417-080229 18 34 17.11 -08 02 30.12 10.49 NVSS
33 MAGPIS Discrete G23.98318-0.18 18 35 40.70 -08 02 35.16 10.71 MAGPIS
SG 024.0+00.2 18 34 22.99 -07 53 51.00 10.87 DIXON
34 GPA 023.93+0.17 18 34 18.41 -07 55 39.00 10.94 GPA
35 NVSS J183422-075358 18 34 22.10 -07 53 57.84 10.99 NVSS
36 NVSS J183531-075145 18 35 31.70 -07 51 45.00 11.83 NVSS
MAGPIS Diffuse G23.7417-0.0167 18 34 36.91 -08 10 49.08 11.84 MAGPIS
MAGPIS Discrete G23.74027-0.01 18 34 37.01 -08 10 50.16 11.84 MAGPIS
37 MAGPIS Discrete G23.85069-0.19 18 35 27.10 -08 09 47.88 11.90 MAGPIS
38 NVSS J183437-081058 18 34 37.20 -08 10 59.16 11.95 NVSS
39 NVSS J183424-080848 18 34 24.31 -08 08 48.12 12.03 NVSS
40 [WBH2005] G24.036+0.163 18 34 31.39 -07 50 08.16 12.14 WBHGP6CM
MAGPIS Discrete G23.73436-0.02 18 34 37.70 -08 11 20.04 12.21 MAGPIS
41 NVSS J183447-074821 18 34 47.21 -07 48 20.88 12.22 NVSS
MAGPIS Diffuse G24.1200-0.0694 18 35 33.41 -07 51 36.00 12.24 MAGPIS
GPA 024.13-0.07 18 35 33.00 -07 51 29.16 12.25 GPA
42 MAGPIS Discrete G23.93678-0.22 18 35 43.51 -08 06 05.04 12.58 MAGPIS
43 NVSS J183540-080741 18 35 40.20 -08 07 41.16 12.72 NVSS
44 MAGPIS Discrete G23.83323-0.20 18 35 26.90 -08 10 58.08 12.82 MAGPIS
45 [WBH2005] G23.749+0.089 18 34 15.41 -08 07 27.84 12.88 WBHGP6CM
46 MAGPIS Discrete G24.15264-0.00 18 35 21.70 -07 48 42.12 12.90 MAGPIS
[WBH2005] G24.153-0.010 18 35 21.70 -07 48 39.96 12.94 WBHGP6CM
47 ADG023.9+00.2 18 34 12.00 -07 54 19.08 12.95 DIXON
MAGPIS Discrete G24.15501-0.01 18 35 22.01 -07 48 34.92 13.04 MAGPIS
[WBH2005] G23.745+0.092 18 34 14.21 -08 07 36.12 13.20 WBHGP6CM
48 [WBH2005] G23.740+0.089 18 34 14.30 -08 07 55.92 13.35 WBHGP6CM
49 [WBH2005] G23.745+0.098 18 34 13.01 -08 07 27.12 13.36 WBHGP6CM
[WBH2005] G23.747+0.103 18 34 12.10 -08 07 09.12 13.38 WBHGP6CM
[WBH2005] G23.738+0.086 18 34 14.71 -08 08 07.08 13.39 WBHGP6CM
[WBH2005] G23.741+0.093 18 34 13.70 -08 07 46.92 13.40 WBHGP6CM
50 MAGPIS Diffuse G24.0222+0.1917 18 34 23.40 -07 50 00.96 13.43 MAGPIS
51 MAGPIS Discrete G23.83385-0.21 18 35 30.10 -08 11 18.96 13.55 MAGPIS
[WBH2005] G23.743+0.102 18 34 11.90 -08 07 24.96 13.57 WBHGP6CM
[WBH2005] G23.739+0.096 18 34 12.79 -08 07 48.00 13.59 WBHGP6CM
52 MAGPIS Discrete G23.95812+0.21 18 34 12.10 -07 52 54.84 13.62 MAGPIS
MAGPIS Discrete G23.95325+0.21 18 34 11.30 -07 53 08.16 13.67 MAGPIS
53 PSR J1834-0812 18 34 29.81 -08 11 60.00 13.72 ATNFPULSAR
MAGPIS Discrete G23.90310-0.24 18 35 44.59 -08 08 30.84 14.10 MAGPIS
54 NVSS J183544-080842 18 35 44.90 -08 08 42.00 14.27 NVSS
55 NVSS J183539-074954 18 35 39.31 -07 49 54.12 14.47 NVSS
56 NVSS J183536-074829 18 35 36.79 -07 48 29.88 15.11 NVSS
57 NVSS J183544-081038 18 35 44.81 -08 10 37.92 15.48 NVSS
58 MAGPIS Discrete G24.18713-0.09 18 35 43.99 -07 49 14.16 15.76 MAGPIS
59 [WBH2005] G24.017+0.238 18 34 13.10 -07 49 05.16 15.84 WBHGP6CM

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