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 J1612.4+0409

Field

Detected Excesses
Swift-XRT image of the field for 4FGL J1612.4+0409 Swift-XRT detections in the field for 4FGL J1612.4+0409


No detected excesses found.

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 16 12 08.85 +04 14 40.42 6.41 (3.5 ± 1.2) x 10-3 15 2.976 2.870

X-Ray and Gamma Ray Catalogs

More Catalogs
Swift-XRT image with known X-ray and gamma ray sources for 4FGL J1612.4+0409 Swift-XRT image with known radio, optical and UV sources for 4FGL J1612.4+0409


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 FIRST J161219.5+041213 16 12 19.61 +04 12 12.96 3.36 FIRST
FIRST J161212.2+040827 16 12 12.29 +04 08 27.96 3.65 FIRST
2 NVSS J161211+040830 16 12 11.59 +04 08 30.84 3.80 NVSS
3 BD+04 3133 16 12 36.77 +04 04 50.16 5.18 ACRS
SAO 121427 16 12 36.86 +04 04 50.52 5.19 SAO
PPM 162342 16 12 36.84 +04 04 50.16 5.19 PPM
4 PG 1610+043 16 12 45.12 +04 12 41.76 5.74 PG
FIRST J161210.4+040511 16 12 10.39 +04 05 11.04 5.76 FIRST
TGSSADR J161210.0+040507 16 12 10.10 +04 05 07.08 5.87 GMRTAS150M
5 NVSS J161209+040511 16 12 09.31 +04 05 12.12 5.96 NVSS
FIRST J161209.4+040508 16 12 09.41 +04 05 08.16 5.97 FIRST
FIRST J161208.1+040527 16 12 08.11 +04 05 27.96 5.99 FIRST
FIRST J161202.9+040801 16 12 03.00 +04 08 00.96 6.00 FIRST
6 SAO 121425 16 12 28.92 +04 15 19.08 6.01 SAO
HD 145745 16 12 28.99 +04 15 19.44 6.02 HIC
HIP 79418 16 12 28.99 +04 15 19.44 6.02 HIPPARCOS
PPM 162340 16 12 28.99 +04 15 19.80 6.03 PPM
BD+04 3132 16 12 28.94 +04 15 20.16 6.03 ACRS
TGSSADR J161208.0+040523 16 12 08.11 +04 05 22.92 6.05 GMRTAS150M
QORG J161202.7+040800 16 12 02.71 +04 07 59.88 6.07 QORGCAT
7 NVSS J161202+040801 16 12 02.59 +04 08 02.04 6.08 NVSS
TGSSADR J161254.6+040952 16 12 54.70 +04 09 51.84 7.06 GMRTAS150M
8 NVSS J161254+040952 16 12 54.70 +04 09 51.84 7.06 NVSS
FIRST J161254.7+040951 16 12 54.70 +04 09 51.84 7.07 FIRST
9 NVSS J161155+040932 16 11 55.80 +04 09 32.04 7.64 NVSS
FIRST J161155.7+040922 16 11 55.70 +04 09 21.96 7.67 FIRST
TGSSADR J161155.5+040925 16 11 55.61 +04 09 24.84 7.70 GMRTAS150M
FIRST J161255.6+040600 16 12 55.61 +04 06 01.08 8.00 FIRST
10 NVSS J161255+040559 16 12 55.80 +04 05 60.00 8.04 NVSS
11 GB6 J1612+0414 16 12 55.39 +04 14 08.88 8.68 GB6
12 FIRST J161219.7+041802 16 12 19.80 +04 18 02.88 8.87 FIRST
PMN J1612+0414 16 12 56.59 +04 14 12.12 8.95 PMN
13 NVSS J161244+041710 16 12 44.11 +04 17 11.04 9.00 NVSS
TGSSADR J161257.6+041352 16 12 57.60 +04 13 51.96 9.00 GMRTAS150M
14 NVSS J161257+041354 16 12 57.70 +04 13 54.12 9.03 NVSS
FIRST J161257.6+041354 16 12 57.70 +04 13 54.12 9.03 FIRST
FIRST J161244.2+041722 16 12 44.21 +04 17 21.84 9.18 FIRST
QORG J161245.0+035922 16 12 45.00 +03 59 21.84 10.99 QORGCAT
15 FIRST J161245.1+035921 16 12 45.10 +03 59 21.84 11.01 FIRST
16 FIRST J161310.6+040943 16 13 10.61 +04 09 43.92 11.02 FIRST
17 FIRST J161308.9+040538 16 13 08.90 +04 05 39.12 11.21 FIRST
18 FIRST J161202.9+035939 16 12 02.90 +03 59 39.12 11.32 FIRST
19 FIRST J161146.4+040329 16 11 46.39 +04 03 29.16 11.57 FIRST
QORG J161146.4+040329 16 11 46.39 +04 03 29.16 11.58 QORGCAT
FIRST J161256.2+042036 16 12 56.21 +04 20 36.96 13.50 FIRST
20 NVSS J161256+042049 16 12 56.69 +04 20 49.92 13.75 NVSS
21 16105+0428 16 12 59.21 +04 20 24.00 13.75 ZCAT
22 PG 1609+045 16 11 49.08 +04 19 37.92 13.89 PG
UZC J161259.9+042044 16 12 59.90 +04 20 44.16 14.12 UZC
PGC 57510 16 12 59.81 +04 20 45.96 14.14 PGC2003
WD 1609+044 16 11 48.22 +04 19 49.44 14.17 MCKSION
FIRST J161142.9+041841 16 11 42.91 +04 18 42.12 14.33 FIRST
23 NVSS J161142+041844 16 11 42.91 +04 18 43.92 14.36 NVSS
FIRST J161142.7+041851 16 11 42.70 +04 18 51.84 14.48 FIRST
24 FIRST J161140.8+035748 16 11 40.80 +03 57 48.96 16.19 FIRST

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