Acknowledgments
The FARGO code development begun in
the year 1999. At that epoch it benefited a lot from the comments and
physical input of Richard Nelson
(QMUL) and John Papaloizou
(Cambridge). The FARGO layer was written on top of a standard staggered
mesh module a la ZEUS (with some minor differences,
mainly in the momenta advection part). Many thanks to Romain Teyssier (Saclay) for
explaining to me all (well...most of) the subtleties of this kind of
schemes. The FARGO scheme, which leads to a dramatic increase of the
hydrodynamic time step in a Keplerian disk, may under some
circumstances lead to an overestimated time step. Although this can not be the case for the problem of
an embedded planet in a non self gravitating disk, it is good to keep
in mind that it may happen for other problems. I am indebted to Pawel Artymowicz (Stockholm
Observatory) for drawing my attention to this issue. The FARGO code
includes an accretion module inherited from the one described by Willy Kley (Tuebingen) in an earlier
work, and uses his conservative treatment of the Coriolis force. The
robustness and "user-friendliness" of FARGO was much improved every
time it was run by a new user. I value very much the feed back from Peggy Varnière (University of
Rochester), Aurélien Crida
and Alessandro Morbidelli
(Nice Observatory). Their questions, comments (and bug reports...) lead
to very substantial improvements. Finally, many thanks to Christophe Morisset (Instituto de
Astronomia, UNAM) for his ideas about the makefile and for his critical
review of these web pages.