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 J0327.6+2620

Field

Detected Excesses

Swift-XRT image of the field for 4FGL J0327.6+2620 Swift-XRT detections in the field for 4FGL J0327.6+2620

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 03 27 37.18 +26 20 07.74 4.92 (2.4 ± 0.4) x 10-2 48 6.369 6.297

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 03 28 21.07 +26 16 10.91 7.71 (5 ± 2) x 10-3 10 2.853 2.885

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0327.6+2620 Swift-XRT image with known radio, optical and UV sources for 4FGL J0327.6+2620


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 NVSS J032737+262010 03 27 37.39 +26 20 09.96 0.62 NVSS
2 PGC 1772059 03 27 54.10 +26 19 46.92 3.15 PGC2003
3 PGC 1774218 03 27 36.50 +26 23 08.16 3.19 PGC2003
4 Unknown 03 27 27.55 +26 24 23.76 5.18 NLTT
5 ZW 0325+2613 03 27 59.52 +26 23 20.40 5.46 ZWCLUSTERS
TGSSADR J032738.3+262539 03 27 38.30 +26 25 40.08 5.63 GMRTAS150M
6 NVSS J032738+262542 03 27 38.40 +26 25 41.88 5.67 NVSS
7 NVSS J032747+262547 03 27 47.30 +26 25 48.00 5.98 NVSS
8 NVSS J032806+261726 03 28 06.91 +26 17 26.88 6.56 NVSS
QORG J032807.4+261729 03 28 07.39 +26 17 29.04 6.64 QORGCAT
9 NVSS J032715+261330 03 27 15.10 +26 13 30.00 8.61 NVSS
10 NVSS J032818+261809 03 28 19.01 +26 18 10.08 8.91 NVSS
QORG J032819.0+261807 03 28 19.01 +26 18 06.84 8.93 QORGCAT
11 NVSS J032819+262249 03 28 19.20 +26 22 50.16 9.18 NVSS
12 PPM 92532 03 28 21.24 +26 16 13.80 9.98 PPM
HIP 16171 03 28 21.29 +26 16 14.88 9.99 HIPPARCOS
HD 21451 03 28 21.26 +26 16 13.80 9.99 HIC
BD+25 551 03 28 21.29 +26 16 14.16 9.99 ACRS
SAO 75943 03 28 21.34 +26 16 14.16 10.00 SAO
13 BD+25 550 03 28 17.74 +26 26 25.80 10.58 ACRS
PPM 92530 03 28 17.74 +26 26 26.52 10.58 PPM
14 NVSS J032826+262145 03 28 26.90 +26 21 46.08 10.62 NVSS
15 GB6 J0326+2620 03 26 51.41 +26 20 33.00 10.92 GB6
16 NVSS J032827+262326 03 28 27.10 +26 23 26.16 11.06 NVSS
TGSSADR J032648.2+262033 03 26 48.19 +26 20 34.08 11.63 GMRTAS150M
17 WDS J03280+2631 AB 03 28 00.00 +26 31 00.12 11.83 WDS
WDS J03280+2631 AC 03 28 00.00 +26 31 00.12 11.83 WDS
18 NVSS J032647+262041 03 26 47.11 +26 20 40.92 11.90 NVSS
QORG J032646.9+262042 03 26 46.90 +26 20 42.00 11.93 QORGCAT
19 NVSS J032649+261600 03 26 49.80 +26 16 00.84 11.97 NVSS
356- 88 03 27 59.71 +26 31 22.08 12.15 NLTT
WD 0325+263 03 27 59.78 +26 31 22.08 12.15 MCKSION
356- 87 03 27 59.74 +26 31 28.20 12.24 NLTT
20 NVSS J032808+260928 03 28 08.71 +26 09 29.16 12.36 NVSS
TGSSADR J032808.8+260929 03 28 08.81 +26 09 29.16 12.37 GMRTAS150M
21 NVSS J032653+261114 03 26 53.21 +26 11 15.00 13.70 NVSS

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