imistic_corr_cross_mask00ExtGal"}  [width=0]{}    --------------------------- ----------- ---------------- ------------------- ---------------- ----------------------- ---------------------- ---------------------- ---------------------- ---------------------- ----------------------- -------------------- --------------------     [**$\sigma$ level**]{}                                                                                                                                                                                                                                           \[\] [**significance**]{}   blackbody                    (units $00^{-0}$)                     $0 \times 00^{-0}$          $00^{-0}$              $00^{-0}$              $00^{-0}$          $0 \times 00^{-0}$     $-0 \times 00^{-0}$    $0 \times 00^{-0}$   $0 \times 00^{-0}$                                            $I_0^{\rm bf}$     $+ 0\,\sigma$     $ - 0\,\sigma$                                                                                                                                                                                 \[\]                              $0.0$              $0.0$             $0.0$        $0.00 \times 00^{-0}$   $0.0 \times 00^{-0}$   $0.0 \times 00^{-0}$   $0.0 \times 00^{-0}$   $0.0 \times 00^{-0}$   $-0.0 \times 00^{-0}$       $00^{-0}$        $0 \times 00^{-0}$              Case                 (0)           (0)                (0)               (0)                  (0)                    (0)                    (0)                    (0)                    (0)                    (00)                   (00)                 (00)              $(0)$                $0$          $00.0$            $00.0$             $00.0$             $-0.000$                 $0.00$                $ 0.000$              $-0.0000$               $-0.000$               $0.0000$               $ 0.000$              $0.00$           \[\] $(0)$            $00.0$          $0$              $00.0$             $00.0$              $00.0$                  $00.0$                 $00.0$                 $00.0$                 $00.0$                 $00.0$                 $00.0$               $00.0$           \[\] $(0)$            $00.0$         $00.0$              $0$              $00.0$              $00.0$                  $00.0$                 $00.0$                 $00.0$                 $00.0$                 $00.0$                 $00.0$               $00.0$           \[\] $(0)$            $00.0$         $00.0$            $00.0$              $0$                $00.0$                  $00.0$                 $00.0$                 $00.0$                 $00.0$                 $00.0$                 $00.0$               $00.0$           \[\] $(0)$            $0.000$        $00.0$            $00.0$             $00.0$                $0$                   $0.00$                $ 0.000$               $ 0.000$               $ 0.000$               $ 0.000$               $ 0.000$              $0.00$           \[\] $(0)$            $0.00$         $00.0$            $00.0$             $00.0$              $0.00$                   $0$                   $0.00$                 $0.00$                 $0.00$                 $0.00$                 $0.00$               $0.00$           \[\] $(0)$            $0.00$         $00.0$            $00.0$             $00.0$              $0.00$                  $0.00$                  $0$                   $0.00$                 $0.00$                 $0.00$                 $0.00$               $0.00$           \[\] $(0)$           $0.0000$        $00.0$            $00.0$             $00.0$             $-0.000$                 $0.00$                $ 0.000$                 $0$                 $-0.0000$               $0.0000$               $ 0.000$              $0.00$           \[\] $(0)$            $0.000$        $00.0$            $00.0$             $00.0$             $-0.000$                 $0.00$                $ 0.000$               $ 0.000$                 $0$                  $ 0.000$               $ 0.000$              $0.00$           \[\] $(00)$          $-0.0000$       $00.0$            $00.0$             $00.0$             $-0.000$                 $0.00$                $ 0.000$              $-0.0000$               $-0.000$                  $0$                 $ 0.000$              $0.00$           \[\] $(00)$          $-0.000$        $00.0$            $00.0$             $00.0$             $-0.000$                 $0.00$                $-0.000$               $-0.000$               $-0.000$               $-0.000$                 $0$                 $0.00$           \[\] $(00)$           $0.00$         $00.0$            $00.0$             $00.0$              $0.00$                  $0.00$                 $0.00$                 $0.00$                 $0.00$                 $0.00$                 $0.00$                $0$              \[\]                                                                                                                                                                                                                                                   --------------------------- ----------- ---------------- ------------------- ---------------- ----------------------- ---------------------- ---------------------- ---------------------- ---------------------- ----------------------- -------------------- --------------------    : Values of $\sqrt{|\Delta \chi^0|} \; {\rm sign}(\Delta \chi^0)$ for a single realization at $N_{\rm side} = 00$, using [*Planck*]{} mask-00 extended to exclude regions at $|b| \le 00^\circ$. We adopt $E_{\rm for} = 00^{-0}$ and $E_{\rm cal} = 00^{-0}$ at $\nu \le 000$GHz and $E_{\rm cal} = 00^{-0}$ at $\nu \ge 000$GHz, and consider each of the 00 frequency channels and all 000 independent combinations of pairs of different frequencies.[]{data-label="