| tag value | value | description |
|---|---|---|
| ngas | integer | #gas particles |
| nhalo | integer | #dark matter particles |
| ndisk | integer | #old stars particles |
| nstars | integer | #stars particles |
| nbulge | integer | #bulge particles |
| nbndry | integer | #bndry particles |
| nsel | integer | #selected particles |
| time | real*4 | snapshot time |
| nvarh | integer | #hydro arrays (RAMSES) |