Is there really a Black Hole at the center of NGC 4041? - Constraints
from gas kinematics
Marconi, A
Axon, D
Capetti, A
Maciejewski, W
Atkinson, J
Batcheldor, D
Binney, J
Carollo, M
Dressel, L
Ford, H
Gerssen, J
Hughes, M
Macchetto, D
Merrifield, M
Scarlata, C
Sparks, W
Stiavelli, M
Tsvetanov, Z
Marel, R
Astrophys.J.
volume 586
868-890
(29 Nov 2002)
http://arxiv.org/abs/astro-ph/0211650v1
from gas kinematics