2009 Fermi Symposium, Washington, D.C., Nov. 2-5 2 TABLE II: em WMAP sources in the 3EG catalog and 0FGL bright source list – Part I. D denotes the integer part of the distance in standard deviations. WMAP 3EG / 0FGL D Counterpart WMAP 3EG / 0FGL D Counterpart J0050–0649 0FGL J0051.1–0647 [0] PKS 0048–071 J0334–4007 0FGL J0334.1–4006 [0] PKS 0332–403 J0051–0927 0FGL J0050.5–0928 [0] PKS 0048–097 J0339–0143 3EG J0340–0201 [0] CTA 026 J0108+0135 3EG J0118+0248 [2] 4C 01.02 J0407–3825 0FGL J0407.6–3829 [0] PKS 0405–385 J0132–1653 3EG J0130–1758 [1] QSO B0130–171 J0416–2051 3EG J0412–1853 [1] (QSO B0413–21)?? J0137+4753 0FGL J0137.1+4751 [0] QSO B0133+47 J0423–0120 0FGL J0423.1–0112 [0] QSO B0420–015 3EG J0422–0102 [0] J0204+1513 3EG J0204+1458 [0] 4C +15.05 J0428–3757 0FGL J0428.7–3755 [0] PKS 0426–380 J0205–1704 0FGL J0204.8–1704 [0] PKS 0202–17 J0442–0017 3EG J0442–0033 [0] QSO B0440–004 J0210–5100 0FGL J0210.8–5100 [0] QSO B0208–5115 J0455–4617 3EG J0458–4635 [0] 0454–463 3EG J0210–5055 [0] J0218+0138 0FGL J0217.8+0146 [1] PKS 0215+015 J0456–2322 0FGL J0457.1–2325 [0] QSO B0454–234 3EG J0456–2338 [0] J0220+3558 0FGL J0220.9+3607 [0] B2 0218+35 J0501–0159 3EG J0500–0159 [0] 4C –02.19 J0223+4303 0FGL J0222.6+4302 [1] 3C 66A J0506–6108 3EG J0512–6150 [1] 0506–612? 3EG J0222+4253 [0] J0237+2848 0FGL J0238.4+2855 [0] 4C +28.07 J0523–3627 3EG J0530–3626 [2] QSO J0522–3627 3EG J0239+2815 [1] J0238+1637 0FGL J0238.6+1636 [0] AO 0235+164 J0538–4405 0FGL J0538.8–4403 [0] PKS 0537–441 3EG J0237+1635 [1] QSO B0235+16 3EG J0540–4402 [0] J0319+4131 0FGL J0320.0+4131 [0] NGC 1275 J0539–2844 3EG J0531–2940 [2] (QSO J0539–2839)?? A. Matching WMAP with EGRET – 20 WMAP sources coincide with a single isolated VHE photon; – 4 WMAP sources coincide with a single VHE pho- ton and a 3EG, with no 0FGL counterpart; – 1 WMAP source (WMAP J1408–0749) coincides with a 3EG source (3EG J1409–0745) and 4 VHE photons (VHE 494, 498, 1058 and 1061) – but with no 0FGL counterpart: – 3 WMAP sources coincide with VHE photons, 3EG and 0FGL sources; of these WMAP J0210-5100 has two VHE photons; The comparison between the WMAP and 3EG cat- alogs produced 69 matches out of the 390 WMAP and 138 EGRET sources outside the WMAP Galactic mask. The number expected randomly is 20; the prob- ability of having 69 matches among the 390 WMAP sources is P < ∼ 10 − $^{17}$, indicating that most -but not all- the matches are real. When accounting for the source type we count 40 matches out of the 54 high confidence blazar associa- tion, labelled A in the 3EG catalog, compared to 6.6 expected randomly. The low confidence ”a” associa- tions have 17 matches out of 23 tries and 3.3 expected chance coincidences. On the other hand we have 11 matches among the 61 unidentified sources out of the WMAP mask, expecting 10.0 by chance. On statisti- cal grounds, we can confirm the physical association of foreground WMAP sources with 3EG blazars, ac- counted by both ”A” and ”a” classes, but not with unidentified EGRET sources (table I). We also compared the WMAP positions with the list of very high energy (VHE) photons, E > 10 GeV [7]: 510 out of the 1506 VHE photons are outside the WMAP Galactic mask. The combined po- sitional accuracy of VHE photons and WMAP sources is 30 . 2 $^{′}$. We obtained coincidences between 33 VHE photons and 29 WMAP sources as follows: eConf C091122 – 1 WMAP source (WMAP J0137+4753) coin- cides with a VHE photon and a 0FGLsource (0FGL 0137.1+4751), with no 3EG counterpart. We note that given the number and error box sizes of the VHE photons, we expect 30 random matches under our 2.5 σ criterion. Most or all of the single WMAP -VHE coincidences are likely to be spurious. We note the case of WMAP J0137+4753, which be- longed to the WMAP & VHE only category prior to the publication of the 0FGL and turned out to be a real γ -ray source.