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 J0949.8+7551

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J0949.8+7551 Swift-XRT detections in the field for 4FGL J0949.8+7551

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 09 50 18.69 +75 44 51.09 4.80 (7.9 ± 1.4) x 10-3 41 5.485 5.472
2 09 51 34.43 +75 48 36.66 5.05 (4.7 ± 1.1) x 10-3 27 4.200 4.097
3 09 48 28.04 +75 57 46.29 5.76 (3.7 ± 0.9) x 10-3 21 3.960 4.007
4 09 50 57.30 +75 45 08.96 5.76 (3.1 ± 0.9) x 10-3 18 3.417 3.529

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 09 50 56.73 +75 56 44.69 5.44 (1.9 ± 0.8) x 10-3 19 2.657 2.496
2 09 49 23.33 +75 58 53.24 5.59 (1.6 ± 0.7) x 10-3 12 2.460 2.255

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J0949.8+7551 Swift-XRT image with known radio, optical and UV sources for 4FGL J0949.8+7551

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 MCG+13-07-038 09 50 18.60 +75 44 53.16 7.15 ROSAT
1RXS J095021.0+754454 09 50 21.00 +75 44 53.88 7.17 ROSAT
1RXS J095021.0+754454 09 50 21.00 +75 44 53.88 7.17 ROSAT
1RXS J095021.0+754454 09 50 21.00 +75 44 53.88 7.17 ROSAT
2RXS J095021.1+754454 09 50 21.12 +75 44 53.88 7.17 ROSAT
2RXS J095021.1+754454 09 50 21.12 +75 44 53.88 7.17 ROSAT
2 2MAXI J0949+757 09 49 12.00 +75 42 00.00 10.12 MAXI

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
1 NVSS J095107+755101 09 51 07.90 +75 51 01.08 4.76 NVSS
2 NVSS J095015+754702 09 50 15.79 +75 47 03.12 5.02 NVSS
TGSSADR J095039.9+755604 09 50 40.01 +75 56 04.92 5.19 GMRTAS150M
3 NVSS J095040+755605 09 50 40.10 +75 56 04.92 5.21 NVSS
WN 0945.6+7610 09 50 39.31 +75 56 21.84 5.41 WENSS
4 MCG+13-07-038 09 49 58.80 +75 46 01.20 5.83 MCG
5 PGC 2769398 09 51 38.40 +75 50 08.16 6.77 PGC2003
6 [ZEH2003] RX J0950.3+7544 3 09 50 25.61 +75 45 23.04 6.78 HRASSOPTID
QORG J095021.0+754503 09 50 21.00 +75 45 02.88 7.02 QORGCAT
Zw 350.032 09 50 18.60 +75 44 53.16 7.15 VERONCAT
PGC 28284 09 50 18.70 +75 44 53.16 7.15 PGC2003
[ZEH2003] RX J0950.3+7544 2 09 50 18.70 +75 44 52.08 7.16 HRASSOPTID
7 NVSS J095025+754444 09 50 25.99 +75 44 44.88 7.40 NVSS
8 [ZEH2003] RX J0950.3+7544 1 09 50 31.10 +75 44 12.12 8.01 HRASSOPTID
9 18-395 09 51 57.36 +75 48 26.28 8.44 NLTT
WN 0945.4+7614 09 50 27.00 +76 00 24.12 8.84 WENSS
10 NVSS J095027+760026 09 50 27.50 +76 00 27.00 8.90 NVSS
11 NVSS J095208+754826 09 52 08.40 +75 48 25.92 9.06 NVSS
12 SAO 6971 09 49 52.66 +75 42 31.68 9.30 SAO
BD+76 366 09 49 53.26 +75 42 30.60 9.32 ACRS
PPM 7508 09 49 53.21 +75 42 30.60 9.32 PPM
13 PCCS2 857 G135.53+36.35 09 47 06.31 +75 53 03.84 10.13 PCCS857GHZ
14 PGC 2768816 09 49 12.29 +75 40 40.08 11.41 PGC2003
15 PGC 2769916 09 52 05.59 +76 00 10.08 11.68 PGC2003
16 PPM 7494 09 47 22.10 +76 01 25.32 13.19 PPM
BD+76 364 09 47 21.96 +76 01 24.96 13.19 ACRS
SAO 6961 09 47 21.72 +76 01 27.84 13.23 SAO
17 GL 366 09 46 48.62 +76 02 38.40 15.48 HIC
LHS 2188 09 46 48.48 +76 02 38.04 15.48 REVISEDLHS
GL 366 09 46 48.29 +76 02 44.88 15.57 PMSUCAT
HIP 47981 09 46 48.29 +76 02 47.04 15.59 HIPPARCOS
18 GRW +76:3952 09 46 48.19 +76 03 26.64 16.06 NLTT
Gl 366 09 46 47.26 +76 03 26.64 16.10 CNS3
GJ 366 09 46 47.26 +76 03 26.64 16.10 WOOLLEY

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