The University of Florida astronomers adhere to the AAS ethics statement (recently adopted) concerning co-authorship:

http://aas.org/about/ethics_statement

"All persons who have made significant contributions to a work
intended for publication should be offered the opportunity to be
listed as authors. This includes all those who have contributed
significantly to the inception, design, execution, or interpretation
of the research to be reported. People who have not contributed
significantly should not be included as authors."

WebMaster: B. Gary.  Nothing on this web page is copyrighted. This site opened:  2010.04.12, Last Update:  2010.04.12