not sure what this message means, last command

UNIX for Advanced & Expert Users
1

in the last command..........what's this mean? i truncated the user name for obvious reasons, b

b rexecd Wed Jan 7 08:53 still logged in
b rexecd Wed Jan 7 08:53 still logged in
b rexecd Wed Jan 7 08:53 still logged in
b rexecd Wed Jan 7 08:53 still logged in
b rexecd Wed Jan 7 08:53 still logged in
b rexecd Wed Jan 7 08:53 still logged in
b rexecd Wed Jan 7 08:53 still logged in
b rexecd Wed Jan 7 08:53 still logged in
b rexecd Wed Jan 7 08:53 still logged in
b rexecd Wed Jan 7 08:53 still logged in
b rexecd Wed Jan 7 08:53 still logged in
b rexecd Wed Jan 7 08:53 still logged in
b rexecd Wed Jan 7 08:53 still logged in
b rexecd Wed Jan 7 08:53 still logged in
b rexecd Wed Jan 7 08:53 still logged in
b rexecd Wed Jan 7 08:53 still logged in
ls pts/ti Wed Jan 7 08:40 still logged in
bd dtremote Wed Jan 7 08:16 still logged in

2

b rexecd Wed Jan 7 08:53 still logged in

This means user b logged in today at 08:53 and is still connected. Why there are so many is strange but could be due to the application user b is running.