Warm Molecular Gas in M51: Mapping the Excitation Temperature and Mass of H2 with the Spitzer Infrared Spectrograph
Journal article published in 2008 by
Gregory Brunner,
Kartik Sheth,
Lee Armus 
,
Mark Wolfire,
Stuart Vogel,
Eva Schinnerer,
George Helou,
Reginald Dufour,
John-David Smith,
Daniel A. Dale
,
Mark Wolfire,
Stuart Vogel,
Eva Schinnerer,
George Helou,
Reginald Dufour,
John-David Smith,
Daniel A. Dale
