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 J1900.9+0538

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J1900.9+0538 Swift-XRT detections in the field for 4FGL J1900.9+0538

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 19 00 54.91 +05 33 10.86 6.21 (3.8 ± 1.1) x 10-3 20 3.641 3.517

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 01 23.63 +05 41 25.12 6.31 (1.6 ± 0.8) x 10-3 14 2.689 1.993

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1900.9+0538 Swift-XRT image with known radio, optical and UV sources for 4FGL J1900.9+0538


No known X-ray or gamma ray sources found.

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 BD+05 4009 19 00 54.58 +05 39 53.28 1.72 ACRS
PPM 166987 19 00 54.53 +05 39 53.64 1.72 PPM
2 [WBH2005] G39.061+0.483 19 00 55.61 +05 40 24.96 2.28 WBHGP20CM
3 NVSS J190102+053959 19 01 02.21 +05 40 00.12 2.71 NVSS
4 NVSS J190033+054308 19 00 33.10 +05 43 09.12 7.23 NVSS
TGSSADR J190032.6+054305 19 00 32.71 +05 43 05.88 7.28 GMRTAS150M
QORG J190030.2+054227 19 00 30.19 +05 42 27.00 7.34 QORGCAT
5 VLSSr J190029.2+054226 19 00 29.30 +05 42 27.00 7.53 VLSSR
6 4C+05.72 19 00 30.10 +05 33 28.08 7.61 DIXON
7 [WBH2005] G39.070+0.349 19 01 25.20 +05 37 12.00 7.77 WBHGP6CM
TGSSADR J190027.2+054223 19 00 27.19 +05 42 23.04 7.93 GMRTAS150M
TXS 1858+056 19 00 27.41 +05 42 29.88 7.94 TEXAS
8 NVSS J190026+054224 19 00 26.71 +05 42 24.12 8.04 NVSS
9 NVSS J190126+053737 19 01 26.59 +05 37 36.84 8.07 NVSS
10 NVSS J190042+053016 19 00 42.60 +05 30 15.84 8.42 NVSS
11 NVSS J190020+053553 19 00 20.90 +05 35 53.88 8.59 NVSS
12 [WBH2005] G38.982+0.311 19 01 23.69 +05 31 30.00 9.92 WBHGP6CM
13 [WBH2005] G39.150+0.359 19 01 31.99 +05 41 48.12 10.07 WBHGP6CM
14 BD+05 4010 19 00 57.79 +05 28 07.68 10.08 ACRS
PPM 166990 19 00 57.77 +05 28 07.32 10.09 PPM
[WBH2005] G38.975+0.310 19 01 23.11 +05 31 05.16 10.09 WBHGP6CM
15 [WBH2005] G38.970+0.311 19 01 22.39 +05 30 51.84 10.14 WBHGP6CM
16 + 5:4011 19 01 00.55 +05 28 00.48 10.29 NLTT
17 PPM 166978 19 00 39.43 +05 28 19.56 10.51 PPM
BD+05 4008 19 00 39.46 +05 28 18.84 10.52 ACRS
HIP 93363 19 01 00.96 +05 27 42.12 10.61 HIPPARCOS
BD +05 4011 19 01 01.06 +05 27 37.44 10.68 HIC
LHS 3426 19 01 01.15 +05 27 36.72 10.70 REVISEDLHS
18 GB6 J1900+0528 19 00 33.91 +05 28 12.00 11.18 GB6
19 NVSS J190028+052901 19 00 28.20 +05 29 00.96 11.20 NVSS
20 NVSS J190040+054908 19 00 40.51 +05 49 08.04 11.48 NVSS
1858+0545 19 00 33.41 +05 49 46.92 12.70 NORTH6CM
TGSSADR J190031.7+054955 19 00 31.70 +05 49 55.92 13.02 GMRTAS150M
21 NVSS J190031+054956 19 00 31.70 +05 49 55.92 13.03 NVSS
TXS 1858+057 19 00 31.90 +05 49 58.08 13.04 TEXAS
[WBH2005] G39.157+0.643 19 00 31.70 +05 49 57.00 13.04 WBHGP20CM
GB6 J1900+0550 19 00 32.71 +05 50 04.92 13.06 GB6
22 NVSS J190010+054728 19 00 10.51 +05 47 29.04 14.31 NVSS

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