We are grateful to F. Bertoldi, M. Fernández, E. Guenther, L. Hillenbrand, G. Morfill, S. Röser, and H. Zinnecker for useful discussion about P1724 and also would like to thank the referee, G. Tagliaferri, who has helped us a lot in improving the paper. M. Gagné originally pointed our interest to P1724. We acknowledge the supporting staff at the many different telescopes used in this research. SJW would especially like to thank the observers who took data at Stony Brook. GT wishes to acknowledge the help of the CfA observers at Oak Ridge, the Whipple Observatory, and the MMT. We are grateful to S. Melchert for the reduction of the RW photometry data set. R. Durisen provided the possibility to observe P1724 at WIYN and participated in the observing run. T. Dame computed for us the velocity of the cloud material near the location of P1724. G. Cutispoto kindly provided his photometric data of P1724. Also, we are grateful to the Principle Investigators of the ROSAT observations used in this research. The ROSAT project is supported by the Max-Planck-Gesellschaft and Germany's federal government (BMBF/DLR). APH acknowledges the support of NSF grant AST-9315115; RN, MFS, TP, SF, and RK acknowledge grants from the Deutsche Forschungsgemeinschaft (Schwerpunktprogramm `Physics of star formation'). SJW was supported through NASA contract NASB-39073. NMSB is grateful to the Dep. of Astrofisica, Rio de Janeiro, and the Fundacao de Amparoa do Estado.
© European Southern Observatory (ESO) 1998
Online publication: June 2, 1998