<s>
MOOG	B-Application
is	O
an	O
astronomical	O
software	O
package	O
.	O
</s>
<s>
It	O
is	O
an	O
example	O
of	O
Fortran	B-Application
code	O
that	O
performs	O
a	O
variety	O
of	O
spectral	O
line	O
analysis	O
and	O
spectrum	O
synthesis	O
tasks	O
under	O
the	O
assumption	O
of	O
local	O
thermodynamic	O
equilibrium	O
.	O
</s>
<s>
Moog	B-Application
uses	O
a	O
model	O
photosphere	O
together	O
with	O
a	O
list	O
of	O
atomic	O
or	O
molecular	O
transitions	O
to	O
generate	O
an	O
emergent	O
spectrum	O
by	O
solving	O
the	O
equation	O
of	O
radiative	O
transfer	O
.	O
</s>
<s>
The	O
typical	O
use	O
of	O
MOOG	B-Application
is	O
to	O
assist	O
in	O
the	O
determination	O
of	O
the	O
chemical	O
composition	O
of	O
a	O
star	O
,	O
e.g.	O
</s>
<s>
The	O
current	O
supported	O
version	O
of	O
the	O
code	O
was	O
released	O
in	O
August	O
2010	O
and	O
is	O
described	O
in	O
the	O
MOOG	B-Application
User	O
's	O
Guide	O
(	O
see	O
references	O
below	O
)	O
.	O
</s>
<s>
Moog	B-Application
is	O
written	O
in	O
FORTRAN	B-Application
77	O
.	O
</s>
<s>
The	O
coding	O
is	O
in	O
various	O
subroutines	O
that	O
are	O
called	O
from	O
a	O
few	O
driver	O
routines	O
;	O
these	O
routines	O
are	O
written	O
in	O
standard	O
FORTRAN	B-Application
.	O
</s>
<s>
The	O
standard	O
MOOG	B-Application
version	O
has	O
been	O
developed	O
on	O
unix	O
,	O
linux	O
and	O
macintosh	O
computers	O
.	O
</s>
