, D. Fraix-Burnet
, E. Davoust
Laboratoire d'Astrophysique de Grenoble,
BP 53X, F-38041 Grenoble Cédex, France
Laboratoire d'Astrophysique, Observatoire
Midi-Pyrénées,
14 Avenue Edouard Belin, 31400 Toulouse, France 
). Knots
A, B, C and G in the jet are clearly seen. The photometry of the knots reveals
that, within the error bars, the millimetric intensity is that expected
from a linear interpolation between the radio and optical values. An extended
feature of about 13
7
appears around the nucleus,
which we were not able to attribute to an artifact. It is elongated
perpendicular to the jet and its offset from the nucleus is symmetric to
that of the well known H
emission-line features in M87. If
interpreted as very cold gas (
K), this extended structure would then
have a total mass of 
. 
Figure 10: Grey map of M87 with contour level spacing of 35 mJy/beam
and a peak intensity of 1.67 Jy/beam. The beamwidth is 
at PA=22.