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.

2FGL J1819.3-1523

Field

Detected Excesses

Swift-XRT image of the field for 2FGL J1819.3-1523 Swift-XRT detections in the field for 2FGL J1819.3-1523

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 18 18 48.02 -15 27 51.44 4.64 (4.8 ± 0.9) x 10-3 42 5.800 5.405
2 18 19 27.56 -15 18 52.65 4.83 (2.4 ± 0.7) x 10-3 32 3.415 3.488

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 19 05.90 -15 17 52.87 4.81 (1.8 ± 0.7) x 10-3 33 3.125 2.704

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 2FGL J1819.3-1523 Swift-XRT image with known radio, optical and UV sources for 2FGL J1819.3-1523

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 3XMM J181915.2-152344s 18 19 15.19 -15 23 44.16 1.32 XMM-NEWTON
3XMM J181915.1-152344 18 19 15.14 -15 23 44.16 1.33 XMM-NEWTON
2 3XMM J181910.5-152528s 18 19 10.46 -15 25 27.48 3.13 XMM-NEWTON
3XMM J181910.4-152528 18 19 10.42 -15 25 28.20 3.15 XMM-NEWTON
3 3XMM J181916.0-152723 18 19 16.10 -15 27 23.40 4.04 XMM-NEWTON
3XMM J181916.2-152724s 18 19 16.20 -15 27 23.76 4.04 XMM-NEWTON
4 3XMM J181935.1-152619 18 19 35.11 -15 26 19.68 4.50 XMM-NEWTON
3XMM J181935.2-152620s 18 19 35.18 -15 26 19.68 4.51 XMM-NEWTON
5 3XMM J181920.4-151845 18 19 20.45 -15 18 45.72 4.73 XMM-NEWTON
3XMM J181920.5-151845s 18 19 20.50 -15 18 45.36 4.74 XMM-NEWTON
6 3XMM J181904.8-152645s 18 19 04.75 -15 26 45.24 5.01 XMM-NEWTON
3XMM J181904.7-152646 18 19 04.78 -15 26 46.68 5.03 XMM-NEWTON
7 3XMM J181928.3-151846 18 19 28.39 -15 18 46.08 5.09 XMM-NEWTON
3XMM J181928.4-151846s 18 19 28.44 -15 18 46.08 5.09 XMM-NEWTON
ALS4923 18 19 28.20 -15 18 43.92 5.10 XMM-NEWTON
8 3XMM J181859.1-152604 18 18 59.11 -15 26 03.84 5.78 XMM-NEWTON
3XMM J181859.1-152603s 18 18 59.71 -15 26 03.12 5.78 XMM-NEWTON
9 3XMM J181856.3-152345s 18 18 56.28 -15 23 45.24 5.87 XMM-NEWTON
3XMM J181856.1-152346 18 18 56.18 -15 23 46.32 5.89 XMM-NEWTON
10 3XMM J181856.8-152456s 18 18 56.81 -15 24 55.80 5.91 XMM-NEWTON
3XMM J181856.7-152455 18 18 56.76 -15 24 55.44 5.92 XMM-NEWTON
3XMM J181856.7-152455 18 18 56.66 -15 24 55.80 5.94 XMM-NEWTON
11 3XMM J181927.2-152948s 18 19 27.22 -15 29 47.76 6.50 XMM-NEWTON
3XMM J181927.2-152949 18 19 27.22 -15 29 48.84 6.52 XMM-NEWTON
12 3XMM J181904.3-152843s 18 19 04.30 -15 28 42.96 6.53 XMM-NEWTON
3XMM J181903.9-152859 18 19 03.91 -15 28 59.52 6.81 XMM-NEWTON
13 3XMM J181851.5-152239 18 18 51.58 -15 22 39.00 7.04 XMM-NEWTON
14 3XMM J181849.1-152154s 18 18 49.10 -15 21 53.64 7.76 XMM-NEWTON
3XMM J181849.0-152156 18 18 49.20 -15 21 56.88 7.77 XMM-NEWTON
15 3XMM J181915.6-153116s 18 19 15.60 -15 31 15.96 7.86 XMM-NEWTON
3XMM J181915.5-153117 18 19 15.50 -15 31 17.04 7.88 XMM-NEWTON
16 3XMM J181852.7-152745s 18 18 52.68 -15 27 44.64 7.96 XMM-NEWTON
3XMM J181852.6-152745 18 18 52.63 -15 27 45.72 7.98 XMM-NEWTON
17 3XMM J181900.6-153006s 18 19 00.65 -15 30 06.48 8.17 XMM-NEWTON
3XMM J181900.6-153007 18 19 00.60 -15 30 07.56 8.20 XMM-NEWTON
18 3XMM J181913.2-153143s 18 19 13.20 -15 31 42.96 8.41 XMM-NEWTON
3XMM J181913.2-153144 18 19 13.22 -15 31 44.76 8.44 XMM-NEWTON
19 3XMM J181907.9-153131s 18 19 07.87 -15 31 31.08 8.59 XMM-NEWTON
AX J181848-1527 18 18 48.96 -15 27 46.80 8.74 ASCA
AX J1818.8-1527 18 18 49.01 -15 27 47.88 8.75 INTEGRAL
20 3XMM J181848.2-152753s 18 18 48.14 -15 27 53.28 8.97 XMM-NEWTON
3XMM J181848.0-152754 18 18 48.79 -15 27 54.36 8.99 XMM-NEWTON
3XMM J181848.0-152754 18 18 48.70 -15 27 54.36 8.99 XMM-NEWTON
XMMSL2 J181847.5-152753 18 18 47.59 -15 27 52.56 9.08 XMM-NEWTON
21 3XMM J181843.3-152658s 18 18 43.34 -15 26 58.56 9.63 XMM-NEWTON
3XMM J181843.2-152700 18 18 43.27 -15 27 00.36 9.65 XMM-NEWTON
22 3XMM J181852.2-153024s 18 18 52.18 -15 30 24.12 9.73 XMM-NEWTON
23 3XMM J181841.4-152612s 18 18 41.38 -15 26 12.48 9.83 XMM-NEWTON
24 3XMM J181852.2-151619 18 18 52.22 -15 16 19.20 9.91 XMM-NEWTON
3XMM J181852.2-151618s 18 18 52.18 -15 16 17.76 9.94 XMM-NEWTON
3XMM J181841.4-152655s 18 18 41.40 -15 26 54.96 10.05 XMM-NEWTON
3XMM J181841.3-152659 18 18 41.40 -15 26 59.64 10.07 XMM-NEWTON
25 3XMM J181910.1-153330 18 19 10.13 -15 33 30.24 10.32 XMM-NEWTON
26 3XMM J181839.4-152733s 18 18 39.43 -15 27 33.48 10.72 XMM-NEWTON
3XMM J181839.3-152735 18 18 39.38 -15 27 35.64 10.74 XMM-NEWTON
27 3XMM J181836.7-152640s 18 18 36.72 -15 26 39.48 11.03 XMM-NEWTON
3XMM J181836.3-152639 18 18 36.55 -15 26 40.56 11.08 XMM-NEWTON
3XMM J181836.3-152639 18 18 36.24 -15 26 38.76 11.14 XMM-NEWTON
28 3XMM J181920.1-153454s 18 19 20.81 -15 34 53.76 11.40 XMM-NEWTON
3XMM J181920.0-153454 18 19 20.30 -15 34 54.12 11.41 XMM-NEWTON
29 3XMM J181840.1-153009s 18 18 40.13 -15 30 09.00 11.80 XMM-NEWTON
30 3XMM J181836.1-152837 18 18 36.12 -15 28 37.56 11.88 XMM-NEWTON
31 3XMM J181835.7-151822s 18 18 35.74 -15 18 22.32 11.97 XMM-NEWTON
3XMM J181835.4-151823 18 18 35.47 -15 18 23.04 12.01 XMM-NEWTON
32 3XMM J181831.3-152523s 18 18 31.27 -15 25 22.80 12.04 XMM-NEWTON
3XMM J181831.0-152524 18 18 31.51 -15 25 23.88 12.09 XMM-NEWTON
33 3XMM J181934.3-153518 18 19 34.39 -15 35 18.24 12.27 XMM-NEWTON
3XMM J181934.3-153518 18 19 34.37 -15 35 18.60 12.27 XMM-NEWTON
3XMM J181934.4-153519s 18 19 34.39 -15 35 18.60 12.27 XMM-NEWTON
34 3XMM J181833.9-152957s 18 18 33.94 -15 29 57.48 12.97 XMM-NEWTON
3XMM J181833.8-152959 18 18 33.91 -15 29 59.28 12.99 XMM-NEWTON
35 3XMM J181838.5-151445 18 18 38.59 -15 14 45.24 13.38 XMM-NEWTON
36 3XMM J181831.5-151710 18 18 31.56 -15 17 10.32 13.40 XMM-NEWTON
3XMM J181831.6-151708s 18 18 31.63 -15 17 08.52 13.41 XMM-NEWTON
37 3XMM J181833.8-153056s 18 18 33.77 -15 30 55.44 13.51 XMM-NEWTON
3XMM J181833.7-153056 18 18 33.77 -15 30 56.88 13.52 XMM-NEWTON
38 3XMM J181834.8-153134s 18 18 34.80 -15 31 33.60 13.67 XMM-NEWTON
3XMM J181834.7-153135 18 18 34.70 -15 31 35.40 13.70 XMM-NEWTON

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J181930-152223 18 19 30.50 -15 22 23.16 2.64 NVSS
2 NVSS J181929-152022 18 19 29.21 -15 20 21.84 3.75 NVSS
3 NVSS J181935-152139 18 19 35.11 -15 21 39.96 3.95 NVSS
4 MAGPIS Discrete G15.57045-0.12 18 19 25.51 -15 27 28.08 4.15 MAGPIS
[SPT2015] ATCA J1819-1527 18 19 25.61 -15 27 28.08 4.15 FER2FUSRID
[WBH2005] G15.570-0.121 18 19 25.61 -15 27 29.88 4.19 WBHGP6CM
[PME2013] J1819-1527 18 19 25.51 -15 27 37.08 4.28 AT2FGLUS
5 NVSS J181932-151912 18 19 31.99 -15 19 12.00 5.10 NVSS
6 ADG015.6-00.1 18 19 27.19 -15 28 23.16 5.15 DIXON
7 NVSS J181858-152438 18 18 58.01 -15 24 38.88 5.56 NVSS
8 NVSS J181856-152321 18 18 56.81 -15 23 21.84 5.74 NVSS
9 MAGPIS Discrete G15.63751-0.17 18 19 44.59 -15 25 22.08 6.07 MAGPIS
10 MAGPIS Discrete G15.51002-0.08 18 19 09.70 -15 29 33.00 6.60 MAGPIS
11 NVSS J181945-152619 18 19 45.41 -15 26 20.04 6.62 NVSS
[WBH2005] G15.510-0.081 18 19 09.70 -15 29 35.16 6.62 WBHGP6CM
[SPT2015] ATCA J1819-1530 18 19 24.31 -15 30 29.88 7.05 FER2FUSRID
[WBH2005] G15.526-0.144 18 19 25.51 -15 30 28.08 7.07 WBHGP6CM
12 NVSS J181923-153033 18 19 24.00 -15 30 33.12 7.10 NVSS
PMN J1819-1530 18 19 22.39 -15 30 37.08 7.13 PMN
[WBH2005] G15.523-0.142 18 19 24.50 -15 30 36.00 7.17 WBHGP6CM
[WBH2005] G15.518-0.136 18 19 22.80 -15 30 42.84 7.24 WBHGP6CM
NVSS J181923-153048 18 19 23.40 -15 30 47.88 7.34 NVSS
13 NVSS J181953-152301 18 19 53.71 -15 23 00.96 8.00 NVSS
14 NVSS J181954-152357 18 19 54.70 -15 23 57.12 8.23 NVSS
15 NVSS J181848-152823 18 18 48.10 -15 28 23.16 9.24 NVSS
16 MAGPIS Discrete G15.54578-0.20 18 19 41.59 -15 31 14.16 9.26 MAGPIS
[WBH2005] G15.546-0.208 18 19 41.71 -15 31 14.88 9.28 WBHGP6CM
17 PMN J1819-1525 18 19 59.40 -15 25 32.16 9.57 PMN
18 GPA 015.76-0.16 18 19 56.11 -15 18 42.12 9.81 GPA
19 [WBH2005] G15.483+0.022 18 18 43.99 -15 28 03.00 9.93 WBHGP6CM
MAGPIS Discrete G15.48256+0.02 18 18 43.70 -15 28 04.08 9.98 MAGPIS
20 NVSS J181950-153029 18 19 50.90 -15 30 29.88 10.12 NVSS
21 NVSS J181901-151410 18 19 01.80 -15 14 11.04 10.37 NVSS
22 MAGPIS Discrete G15.43945-0.03 18 18 50.21 -15 31 50.16 11.09 MAGPIS
23 NVSS J181958-153020 18 19 58.10 -15 30 20.16 11.34 NVSS
24 [WBH2005] G15.799-0.006 18 19 27.31 -15 12 07.92 11.48 WBHGP6CM
MAGPIS Discrete G15.79940-0.00 18 19 27.31 -15 12 06.84 11.49 MAGPIS
[WBH2005] G15.800-0.006 18 19 27.41 -15 12 06.84 11.50 WBHGP20CM
25 NVSS J181847-153211 18 18 47.50 -15 32 12.12 11.81 NVSS
26 NVSS J182001-151653 18 20 01.49 -15 16 53.04 11.88 NVSS
27 MAGPIS Discrete G15.65569+0.12 18 18 41.71 -15 16 00.12 12.01 MAGPIS
28 NVSS J182007-151926 18 20 07.51 -15 19 27.12 12.01 NVSS
29 [WBH2005] G15.821-0.053 18 19 40.30 -15 12 18.00 12.16 WBHGP6CM
30 NVSS J181835-152938 18 18 35.40 -15 29 39.12 12.50 NVSS
31 NVSS J182000-151502 18 20 00.50 -15 15 02.88 12.80 NVSS
32 NVSS J181843-151350 18 18 43.10 -15 13 50.88 13.23 NVSS
33 NVSS J181839-153240 18 18 39.19 -15 32 39.84 13.55 NVSS
34 NVSS J181838-151221 18 18 38.71 -15 12 20.88 15.03 NVSS

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