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Table 1.

List of blazars in the sample and information on their associated IceCube alert.

Fermi-LAT catalog designation Associated source Source classification IceCube real-time alert Alert type E/TeV
4FGL J0158.8+0101 5BZU J0158+0101 Masquerading Diffuse (II.1) 480( * )
4FGL J0244.7+1316 CRATESJ024445+132002 Undetermined IC161103A Bronze 85
4FGL J0239.5+1326 3HSP J023927.2+13273 Undetermined IC161103A Bronze 85
4FGL J0224.2+1616 VOU J022411+161500 Undetermined IC111216A Gold 891
4FGL J0232.8+2018 3HSP J023248.5+20171 True BL Lac IC111216A Gold 891
4FGL J0344.4+3432 3HSP J034424.9+34301 Undetermined IC150831A Gold 181
4FGL J0509.4+0542 TXS 0506+056 Masquerading IC170922A Gold 264
3FGL J0627.9−1517 3HSP J062753.3-15195 True BL Lac IC170321A Gold 231
4FGL J0649.5−3139 3HSP J064933.6-31392 Undetermined IC140721A Gold 157
4FGL J0854.0+2753 3HSP J085410.1+27542 True BL Lac IC150904A Gold 302
4FGL J0946.2+0104 3HSP J094620.2+01045 True BL Lac IC190819A Bronze 113
4FGL J0955.1+3551 3HSP J095507.9+35510 True BL Lac IC200107A
4FGL J1003.4+0205 3HSP J100326.6+02045 Undetermined IC190819A Bronze 113
4FGL J1055.7−1807 VOU J105603−180929 Undetermined IC171015A Gold 72
4FGL J1117.0+2013 3HSP J111706.2+20140 Masquerading IC130408A Gold 65
4FGL J1124.0+2045 3HSP J112405.3+20455 Undetermined IC130408A Gold 65
4FGL J1124.9+2143 3HSP J112503.6+21430 Undetermined IC130408A Gold 65
3FGL J1258.4+2123 3HSP J125821.5+21235 Undetermined IC151017A Gold 321
4FGL J1258.7−0452 3HSP J125848.0−04474 True BL Lac IC150926A Gold 216
4FGL J1300.0+1753 3HSP J130008.5+17553 Undetermined IC151017A Gold 321
4FGL J1314.7+2348 5BZB J1314+2348 Masquerading IC151017A Gold 321
4FGL J1321.9+3219 5BZB J1322+3216 Masquerading IC120515A Gold 194
4FGL J1507.3−3710 VOU J150720−370902 Masquerading IC181014A Bronze 62
4FGL J1528.4+2004 3HSP J152835.7+20042 Masquerading Diffuse (II.10) 420( * )
4FGL J1533.2+1855 3HSP J153311.2+18542 Undetermined Diffuse (II.10) 420( * )
4FGL J1554.2+2008 3HSP J155424.1+20112 Undetermined Diffuse (II.10) 420( * )
4FGL J1808.2+3500 CRATESJ180812+350104 Masquerading IC110610A Gold 294
4FGL J1808.8+3522 3HSP J180849.7+35204 True BL Lac IC110610A Gold 294
4FGL J2030.5+2235 3HSP J203031.6+22343 Undetermined Diffuse (II.4) 200( * )
4FGL J2030.9+1935 3HSP J203057.1+19361 Masquerading Diffuse (II.4) 200( * )
4FGL J2133.1+2529 3HSP J213314.3+25285 Undetermined IC150714A Gold 439
4FGL J2223.3+0102 3HSP J222329.5+01022 Undetermined IC140114A Bronze 54
4FGL J2227.9+0036 5BZB J2227+0037 Masquerading IC140114A Bronze 54
4FGL J2326.2+0113 CRATESJ232625+011147 Masquerading IC160510A Gold 208

Notes. ( * )High-energy tracks detected earlier than IceCube alerts listed in IceCat-1 are labeled as “Diffuse” and taken from Abbasi et al. (2022b, Table 8). The respective energies marked with asterisks are the reconstructed muon energies instead of the reconstructed neutrino energies. The event IC200107A was not part of the alert stream but was issued separately in https://gcn.gsfc.nasa.gov/gcn/gcn3/26655.gcn3.

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