Keplerian molecular gas disk and black hole mass of NGC 4751

Open Access

Fig. 2.

F160W HST/WFC3 images of NGC 4751, with selected brightness contours shown in black. Left: Image covering a portion of the FOV; overplotted are four illustrative ellipses in PA = 355° with inclinations of 65° (red) and 78° (blue) and semi-minor axes of $3 \overset{″}{.} 3$ $3{{\overset{\prime\prime}{.}}}3$ and 11″. The kinematic center of the galaxy is indicated with a black cross. Right: Zoom on the left panel, now showing ellipses with semi-minor axes of $1 \overset{″}{.} 7$ $1{{\overset{\prime\prime}{.}}}7$ .

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