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.

1FGL J0848.6+0504

Field

Detected Excesses

Swift-XRT image of the field for 1FGL J0848.6+0504 Swift-XRT detections in the field for 1FGL J0848.6+0504

Detected Excesses (SNR(Sosta) > 3.0)

# R.A. (J2000) Dec. (J2000) Pos. Error (") Rate (cts/s) Counts SNR (Detect) SNR (Sosta)
1 08 48 39.63 +05 06 20.41 3.90 (5.3 ± 0.4) x 10-2 203 13.550 13.350
2 08 48 34.90 +05 14 10.54 5.17 (10 ± 2) x 10-3 34 5.546 5.468
3 08 48 13.89 +05 09 25.68 6.52 (3.2 ± 1.0) x 10-3 11 2.945 3.028
4 08 48 35.11 +04 57 00.16 7.71 (3.0 ± 1.0) x 10-3 11 2.920 3.001

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 08 48 26.40 +05 11 35.08 7.71 (2.1 ± 0.9) x 10-3 8 2.285 2.394
2 08 48 43.66 +05 04 51.61 5.49 (3 ± 2) x 10-3 29 3.017 1.663

X-Ray and Gamma Ray Catalogs

More Catalogs

Swift-XRT image with known X-ray and gamma ray sources for 1FGL J0848.6+0504 Swift-XRT image with known radio, optical and UV sources for 1FGL J0848.6+0504

Known X-Ray and Gamma Ray Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Observatory/Database Table
1 XMMSL1 J084840.1+050617 08 48 40.10 +05 06 17.28 1.48 XMM-NEWTON
XMMSL1 J084839.1+050617 08 48 39.17 +05 06 16.92 1.53 XMM-NEWTON
1RXS J084840.1+050630 08 48 40.10 +05 06 29.88 1.69 ROSAT
1RXS J084840.1+050630 08 48 40.10 +05 06 30.60 1.70 ROSAT
2 BD+05 2061 08 48 42.02 +05 06 33.12 1.74 ROSAT
3 1RXS J084818.2+045709 08 48 18.19 +04 57 09.00 9.57 ROSAT
SDSS J084818.23+045643.1 08 48 18.24 +04 56 43.08 9.91 ROSAT

Known Radio, Optical and UV Sources

# Source Name R.A. (J2000) Dec. (J2000) Offset (') Database Table
QORG J084839.6+050618 08 48 39.60 +05 06 18.00 1.52 QORGCAT
FIRST J084839.6+050618 08 48 39.70 +05 06 19.08 1.52 FIRST
1 NVSS J084839+050623 08 48 39.19 +05 06 23.04 1.63 NVSS
2 BD+05 2061 08 48 41.76 +05 06 29.88 1.68 ACRS
PPM 155033 08 48 41.78 +05 06 29.88 1.68 PPM
SAO 117153 08 48 41.71 +05 06 30.24 1.68 SAO
3 NVSS J084834+050300 08 48 34.90 +05 02 60.00 2.40 NVSS
4 WD 0846+052 08 48 52.20 +05 01 32.88 4.29 MCKSION
FIRST J084820.5+050546 08 48 20.59 +05 05 45.96 5.20 FIRST
5 NVSS J084820+050542 08 48 20.40 +05 05 42.00 5.23 NVSS
6 FIRST J084819.3+050357 08 48 19.39 +05 03 56.88 5.49 FIRST
7 WD 0845+053 08 48 23.30 +05 08 40.56 5.87 MCKSION
QORG J084849.5+051145 08 48 49.51 +05 11 44.88 7.23 QORGCAT
FIRST J084849.4+051145 08 48 49.51 +05 11 45.96 7.24 FIRST
8 NVSS J084828+051126 08 48 28.20 +05 11 26.16 7.35 NVSS
9 SDSS J08484+0458 08 48 25.99 +04 58 27.84 7.39 VERONCAT
FIRST J084827.4+051124 08 48 27.50 +05 11 25.08 7.41 FIRST
10 NVSS J084849+051203 08 48 49.61 +05 12 02.88 7.53 NVSS
11 SDSS J084810.69+050252 08 48 10.68 +05 02 52.08 7.83 SDSSQUASAR
SDSS J08481+0502 08 48 10.70 +05 02 51.00 7.83 VERONCAT
12 FIRST J084825.3+051242 08 48 25.30 +05 12 42.12 8.80 FIRST
13 FIRST J084847.6+045605 08 48 47.59 +04 56 06.00 8.88 FIRST
14 SDSS J084818.23+045643 08 48 18.24 +04 56 43.08 9.91 SDSSQUASAR
SDSS J08483+0456 08 48 18.19 +04 56 43.08 9.92 VERONCAT
15 FIRST J084912.5+051057 08 49 12.60 +05 10 57.00 9.95 FIRST
16 FIRST J084800.7+050304 08 48 00.79 +05 03 05.04 10.19 FIRST
17 PGC 1280742 08 48 25.01 +05 16 04.08 11.93 PGC2003
18 NVSS J084813+045411 08 48 13.80 +04 54 11.88 12.62 NVSS
FIRST J084813.4+045408 08 48 13.39 +04 54 09.00 12.72 FIRST
19 FIRST J084920.7+051328 08 49 20.81 +05 13 28.92 13.13 FIRST
20 FIRST J084909.9+051618 08 49 10.01 +05 16 18.12 13.54 FIRST

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