Statistics and Tempdb

OS - Windows 2008 R2

SQL Server - 2008 R2 SP2

I executed the following t-sql to gather statistics info on a server:

declare @temp1 table (DbName varchar(250), TableName varchar(250), IndexName varchar(250), IndexType varchar(100), Date_Updated datetime)
insert into @temp1
EXEC sp_MSForEachDB
'use [?]; SELECT  ''[?]'' AS DbName,
  t.name AS Table_Name
        ,i.name AS Index_Name
        ,i.type_desc AS Index_Type
        ,STATS_DATE(i.object_id,i.index_id) AS Date_Updated
FROM         
  sys.indexes i JOIN
  sys.tables t ON t.object_id = i.object_id
WHERE         
  i.type > 0
ORDER BY
  t.name ASC
 ,i.type_desc ASC
 ,i.name ASC '

select * from @temp1
order by DbName desc

I noticed some indexes on tempdb.





I was wondering if someone could shed some light on this tempdb activity and if I could trace theses indexes/table objects to original source database/table objects, if possible. In addition, is such an activity on tempdb a potential performance hazard?

Thank you.

-Jeelani