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 J1039.2+3258

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1039.2+3258 Swift-XRT detections in the field for 4FGL J1039.2+3258

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 10 38 52.18 +32 56 55.40 4.83 (8 ± 2) x 10-3 43 6.044 5.748
2 10 39 07.65 +32 50 02.35 6.41 (3.3 ± 0.9) x 10-3 15 3.482 3.527

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 10 39 01.95 +32 59 51.18 6.31 (1.7 ± 0.8) x 10-3 15 2.430 2.234

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1039.2+3258 Swift-XRT image with known radio, optical and UV sources for 4FGL J1039.2+3258

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 1RXS J103900.0+325816 10 39 00.00 +32 58 16.68 3.17 ROSAT
2RXS J103859.5+325814 10 38 59.59 +32 58 14.88 3.26 ROSAT
2RXS J103859.5+325814 10 38 59.59 +32 58 14.88 3.26 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J103915+325944 10 39 15.10 +32 59 44.88 1.26 NVSS
2 SDSS J10390+3259 10 39 01.51 +32 59 36.96 3.07 VERONCAT
3 PGC 31676 10 39 14.50 +32 54 56.16 3.56 PGC2003
FIRST J103852.1+325651 10 38 52.20 +32 56 52.08 5.07 FIRST
QORG J103852.2+325651 10 38 52.20 +32 56 51.00 5.07 QORGCAT
4 NVSS J103852+325651 10 38 52.10 +32 56 51.00 5.10 NVSS
5 WDS J10397+3255 10 39 42.00 +32 55 00.12 6.64 WDS
6 FIRST J103842.0+325500 10 38 42.00 +32 55 00.12 7.77 FIRST
7 SDSS J10398+3257 10 39 52.70 +32 57 11.88 7.99 VERONCAT
QORG J103944.3+330415 10 39 44.30 +33 04 14.88 8.41 QORGCAT
8 FIRST J103944.3+330415 10 39 44.30 +33 04 15.96 8.42 FIRST
PGC 2022439 10 39 44.30 +33 04 21.00 8.48 PGC2003
9 HIP 52140 10 39 07.90 +32 50 00.24 8.62 HIPPARCOS
BD+33 2016 10 39 07.80 +32 49 59.88 8.63 ACRS
HD 92194 10 39 07.85 +32 49 59.52 8.63 HIC
SAO 62179 10 39 07.85 +32 49 59.52 8.63 SAO
PPM 75377 10 39 07.85 +32 49 59.52 8.63 PPM
WDS J10391+3250 10 39 06.00 +32 49 59.88 8.70 WDS
10 263- 3 10 38 58.10 +33 06 39.96 8.92 NLTT
11 NVSS J103915+324933 10 39 15.60 +32 49 32.88 8.93 NVSS
FIRST J103915.5+324932 10 39 15.50 +32 49 32.16 8.96 FIRST
12 NVSS J103859+325008 10 38 59.30 +32 50 08.16 8.98 NVSS
13 PGC 2015638 10 38 42.79 +32 52 32.16 9.02 PGC2003
FIRST J103855.2+330640 10 38 55.30 +33 06 41.04 9.19 FIRST
14 NVSS J103855+330642 10 38 55.20 +33 06 42.12 9.21 NVSS
FIRST J103852.2+324852 10 38 52.30 +32 48 51.84 10.74 FIRST
15 NVSS J103852+324848 10 38 52.49 +32 48 47.88 10.78 NVSS
QORG J104000.5+325256 10 40 00.50 +32 52 55.92 11.03 QORGCAT
16 NVSS J104000+325256 10 40 00.70 +32 52 55.92 11.07 NVSS
FIRST J104000.7+325252 10 40 00.70 +32 52 53.04 11.10 FIRST
17 PGC 2024395 10 38 44.40 +33 08 13.92 11.68 PGC2003
18 PGC 2013723 10 39 51.60 +32 49 27.84 11.84 PGC2003
19 NVSS J103828+325133 10 38 28.70 +32 51 33.84 11.95 NVSS
20 PGC 2012180 10 39 30.31 +32 46 58.08 11.96 PGC2003
FIRST J103828.3+325135 10 38 28.30 +32 51 34.92 12.00 FIRST
TGSSADR J103845.3+330913 10 38 45.31 +33 09 12.96 12.41 GMRTAS150M
21 NVSS J103845+330915 10 38 45.41 +33 09 15.12 12.44 NVSS
FIRST J103845.3+330915 10 38 45.31 +33 09 15.12 12.44 FIRST
WN 1035.9+3324 10 38 45.31 +33 09 18.00 12.49 WENSS
FIRST J103824.0+330530 10 38 24.10 +33 05 30.12 12.79 FIRST
22 PGC 2012147 10 39 40.99 +32 46 54.84 12.79 PGC2003
23 NVSS J103823+330532 10 38 23.90 +33 05 31.92 12.85 NVSS
24 Unknown 10 38 28.99 +32 48 05.04 14.21 NLTT
25 FIRST J104010.9+330703 10 40 10.90 +33 07 03.00 14.50 FIRST

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