#sql files

[Mike Connell]

Hi,

Using some i/o tools, I'm seeing heavy traffic to
/db/mysqldata/rpt/#sql-13ab_ee.MYD and
/db/mysqldata/rpt/#sql-13ab_ee.MYI files.

When I do an ls -lat of this directory, there are
no such files listed.

A couple of days ago, I dropped two indexes on
my 'token' table. After that, I started noticing these
files being read/written to by MySQL.

1) Are these files somehow related to my 'token' table?
2) What are they for?
3) Is it a good idea to get rid of them?
4) How do I get rid of them?

Thanks,

Mike