as no direct observational evidence exists in this case.

  -------------- ------------------ ------------------ ------------------ --------------------------- --------------------------- --------------------------- ----------------
      Merger       $V_{\rm X} \ \ $   $V_{\rm Y} \ \ $   $V_{\rm Z} \ \ $   $L_{\rm X}$/$L_{\rm tot}$   $L_{\rm Y}$/$L_{\rm tot}$   $L_{\rm Z}$/$L_{\rm tot}$    Line type
                   \[kms$^{-1}$\]     \[kms$^{-1}$\]       \[kms$^{-1}$\]                                                                                     
       I90R                 $-8.0 $            $ 0.0 $                0.0                        0.71                         0.0                   $  0.71 $    red solid
                            $ 8.0 $            $ 0.0 $                0.0                        0.71                         0.0                   $ -0.71 $    red dashed
       I60R                 $-8.0 $            $ 0.0 $                0.0                        0.87                         0.0                   $  0.50 $    cyan solid
                            $ 8.0 $            $ 0.0 $                0.0                        0.87                         0.0                   $ -0.50 $   cyan dashed
      I120R                 $-8.0 $            $ 0.0 $                0.0                        0.50                         0.0                   $  0.87 $  magenta solid
                            $ 8.0 $            $ 0.0 $                0.0                        0.50                         0.0                   $ -0.87 $  magenta dashed
      I90VY1                $-8.0 $            $  1.0$                0.0                        0.71                         0.0                   $  0.71 $   green solid
                            $ 8.0 $            $ -1.0$                0.0                        0.71                         0.0                   $ -0.71 $   green dashed
      I90VY2                $-8.0 $            $  2.0$                0.0                        0.71                         0.0                   $  0.71 $    blue solid
                            $ 8.0 $            $ -2.0$                0.0                        0.71                         0.0                   $ -0.71 $   blue dashed
   \[tab:init\]                                                                                                                                               
  -------------- ------------------ ------------------ ------------------ --------------------------- --------------------------- --------------------------- ----------------

Recently, a new merger candidate appeared in the 