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 J1848.2-0016

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J1848.2-0016 Swift-XRT detections in the field for 4FGL J1848.2-0016


No detected excesses found.

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 48 25.29 -00 21 22.16 7.97 (2.4 ± 1.0) x 10-3 10 2.312 2.432

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1848.2-0016 Swift-XRT image with known radio, optical and UV sources for 4FGL J1848.2-0016

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 2CXO J184829.7-000944 18 48 29.74 -00 09 44.28 7.34 CHANDRA
4XMMs J184829.8-000943 18 48 29.83 -00 09 43.20 7.36 XMM-NEWTON
4XMM J184829.8-000942 18 48 29.88 -00 09 42.12 7.39 XMM-NEWTON
2 2CXO J184831.6-000806 18 48 31.68 -00 08 06.36 9.02 CHANDRA
4XMMs J184832.6-000753 18 48 32.66 -00 07 53.40 9.32 XMM-NEWTON
4XMM J184832.7-000753 18 48 32.76 -00 07 53.40 9.33 XMM-NEWTON
3 2CXO J184829.2-000630 18 48 29.21 -00 06 30.24 10.28 CHANDRA
4 2CXO J184827.1-000615 18 48 27.19 -00 06 15.48 10.36 CHANDRA
5 4XMMs J184852.9-000956 18 48 52.94 -00 09 56.88 11.14 XMM-NEWTON
6 4XMM J184823.3-000447 18 48 23.33 -00 04 48.00 11.59 XMM-NEWTON
4XMMs J184823.3-000447 18 48 23.35 -00 04 47.64 11.60 XMM-NEWTON
7 4XMMs J184841.5-000451 18 48 41.59 -00 04 51.60 13.04 XMM-NEWTON
8 2CXO J184852.7-000627 18 48 52.73 -00 06 27.36 13.39 CHANDRA
9 4XMMs J184851.6-000556 18 48 51.60 -00 05 56.40 13.58 XMM-NEWTON
10 2CXO J184855.5-000630 18 48 55.58 -00 06 30.96 13.85 CHANDRA
4XMM J184855.6-000629 18 48 55.63 -00 06 29.88 13.86 XMM-NEWTON
4XMMs J184855.7-000630 18 48 55.75 -00 06 30.24 13.88 XMM-NEWTON
4XMM J184857.0-000638 18 48 57.05 -00 06 38.16 14.02 XMM-NEWTON
11 4XMMs J184847.2-000418 18 48 47.28 -00 04 18.12 14.25 XMM-NEWTON
12 CXOGSG J184857.0-000452 18 48 57.05 -00 04 53.04 15.28 CHANDRA
2CXO J184857.0-000452 18 48 57.07 -00 04 53.04 15.29 CHANDRA
13 2CXO J184901.8-000524 18 49 01.87 -00 05 24.72 15.74 CHANDRA
CXOGSG J184901.8-000524 18 49 01.87 -00 05 24.00 15.75 CHANDRA
14 2CXO J184858.9-000430 18 48 58.99 -00 04 30.72 15.88 CHANDRA

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NK1.22 18 48 23.11 -00 16 42.96 1.79 DIXON
2 NVSS J184809-001645 18 48 09.31 -00 16 45.84 1.81 NVSS
TGSSADR J184809.2-001650 18 48 09.19 -00 16 50.16 1.85 GMRTAS150M
[WBH2005] G32.304+0.602 18 48 09.00 -00 17 02.04 1.96 WBHGP20CM
3 NVSS J184814-002243 18 48 14.50 -00 22 44.04 6.49 NVSS
4 NVSS J184836-001110 18 48 36.31 -00 11 11.04 7.14 NVSS
TGSSADR J184836.5-001112 18 48 36.50 -00 11 12.84 7.16 GMRTAS150M
5 PPM 180444 18 48 20.83 -00 24 20.16 8.16 PPM
SAO 142634 18 48 20.76 -00 24 21.60 8.19 SAO
6 HIP 92224 18 47 44.45 -00 14 10.68 8.21 HIPPARCOS
HD 173883 18 47 44.42 -00 14 10.68 8.22 HIC
PPM 180442 18 47 44.42 -00 14 09.96 8.22 PPM
SAO 142626 18 47 44.35 -00 14 10.68 8.23 SAO
7 PSR J1848-0023 18 48 37.90 -00 23 17.16 8.87 ATNFPULSAR
8 NVSS J184747-001042 18 47 47.71 -00 10 41.88 9.04 NVSS
9 PPM 707329 18 47 58.22 -00 24 23.40 9.30 PPM
10 NVSS J184826-002635 18 48 26.71 -00 26 35.88 10.67 NVSS
11 NVSS J184850-002319 18 48 50.81 -00 23 20.04 11.17 NVSS
12 NVSS J184856-002701 18 48 57.00 -00 27 01.08 14.82 NVSS
13 NVSS J184731-002744 18 47 31.80 -00 27 43.92 15.97 NVSS

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