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Table 2

Extreme synchrotron peaked sources.

Source log  ν peak log  ν peak f ν peak Note

2WHSPJ003322.3203907 17.9 –11.9 New HSP
2WHSPJ004013.7+405003 >17.5 >–11.5 5BZU, lower limit
2WHSPJ012308.5+342048 18.0 –10.8 5BZB, TeV source
2WHSPJ013803.7215530 >17.5 >–12.0 blazar candidate lower limit
2WHSPJ015657.9530159 18.0 –11.1 5BZB
2WHSPJ020412.9333339 17.9 –11.7 5BZB, new γ-ray identification
2WHSPJ023248.5+201717 18.5 –11.0 5BZG, TeV source*
2WHSPJ032056.2+042447 17.9 –11.7 Blazar candidate, new γ-ray identification
2WHSPJ032356.5010833 >17.5 >–11.9 5BZB, TeV source, lower limit
2WHSPJ034923.1115926 17.9 –11.0 5BZB, TeV source
2WHSPJ035257.4683117 18.1 –11.0 Previously known BL Lac*
2WHSPJ050419.5095631 17.9 –11.6 New HSP, new γ-ray identification
2WHSPJ050709.2385948 >17.5 >–12.2 Blazar candidate, lower limit
2WHSPJ050756.0+673723 17.9 –10.7 5BZB, TeV source
2WHSPJ055040.5321615 18.1 –10.7 5BZG, TeV source
2WHSPJ055716.7061706 17.9 –11.5 Blazar candidate, new γ-ray identification
2WHSPJ064710.0513547 17.9 –11.2 Blazar candidate
2WHSPJ071029.9+590820 18.1 –10.7 5BZB, TeV source
2WHSPJ073326.7+515354 17.9 –11.3 Blazar candidate
2WHSPJ081917.5075626 18.0 –11.5 5BZB, TeV source
2WHSPJ083251.4+330011 18.0 –12.0 5BZB, new γ-ray identification
2WHSPJ084452.2+280409 17.9 –12.3 New HSP
2WHSPJ092057.4225720 >17.5 >–11.6 New HSP, lower limit
2WHSPJ094620.2+010450 17.9 –11.8 5BZB, TeV source
2WHSPJ095849.0+013218 17.9 –12.3 New HSP, new γ-ray identification
2WHSPJ102212.6+512359 18.2 –11.7 5BZG, new γ-ray identification
2WHSPJ104651.4253544 >18.0 >–11.5 5BZB
2WHSPJ105606.6+025213 17.9 –11.5 5BZG
2WHSPJ110357.1+261117 17,9 –12.2 New HSP
2WHSPJ110651.7+650603 17.9 –12.7 Blazar candidate
2WHSPJ110804.9+164820 17.9 –12.7 New HSP
2WHSPJ112313.2090424 17.9 –12.4 Blazar candidate
2WHSPJ113209.1473853 >17.5 >–11.6 Blazar candidate, lower limit
2WHSPJ113630.1+673704 18.1 –11.1 5BZB, TeV source
2WHSPJ121323.0261806 17.9 –11.2 5BZB
2WHSPJ122044.5+690525 >17.5 >–12.0 Blazar candidate, lower limit
2WHSPJ122208.6+030718 >17.5 >–11.8 New HSP, lower limit
2WHSPJ122514.2+721447 >17.5 >–11.8 Lower limit, 5BZB
2WHSPJ125341.2393159 17.9 –11.3 5BZG, new γ-ray identification
2WHSPJ125708.2+264924 >17.5 >–12.3 New HSP, lower limit
2WHSPJ132239.1+494336 >17.5 >–12.1 New HSP, lower limit
2WHSPJ132541.8022809 17.9 –12.0 5BZB, new γ-ray identification
2WHSPJ140027.0293936 >17.5 >–12.1 Blazar candidate, lower limit
2WHSPJ140121.1+520928 >17.5 >–12.0 5BZB, lower limit
2WHSPJ142832.5+424020 18.1 –10.7 5BZB, TeV source
2WHSPJ143342.7730437 >17.5 >–11.5 Blazar candidate, lower limit, new γ-ray identification*
2WHSPJ151041.0+333503 >17.5 >–11.5 5BZG, lower limit, new γ-ray identification
2WHSPJ151618.7152344 18.0 –11.7 5BZB, new γ-ray identification
2WHSPJ153646.6+013759 >18.0 >–11.7 5BZB
2WHSPJ160519.0+542058 17.9 –12.0 5BZB, new γ-ray identification
2WHSPJ161004.0+671026 >17.5 >–11.8 5BZB, lower limit, new γ-ray identification
2WHSPJ161414.0+544251 17.9 –12.6 Blazar candidate
2WHSPJ161632.8+375603 18.0 –12.1 5BZG
2WHSPJ161632.8+375603 18.0 –12.1 5BZG
2WHSPJ162330.4+085724 >17.5 >–12.1 New HSP, lower limit, new γ-ray identification
2WHSPJ165352.2+394536 17.9 –10.2 Variability, flaring, 5BZB, TeV source*
2WHSPJ171902.2+552433 17.9 –12.5 Known blazar
2WHSPJ194333.7053352 >17.5 >–11.8 Blazar candidate
2WHSPJ194356.2+211821 18.1 –11.0 New HSP, TeV source
2WHSPJ205528.2002116 >18.0 >–10.9 5BZB, TeV source, lower limit
2WHSPJ214410.0195559 17.9 –12.4 Blazar candidate
2WHSPJ215305.2004229 >18.0 >–11.4 5BZB, lower limit*
2WHSPJ223248.7202226 17.9 –11.7 Blazar candidate
2WHSPJ225147.5320611 >18.0 >–11.3 5BZU, lower limit, new γ-ray identification

Notes. The sources marked with * are discussed in the text and shown in Figs. 4 to 8.

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