HST previews are not currently working. We are investigating and apologize for the inconvenience. For image previews we suggest that you try the Aladin option, and for spectral previews the SpecView option. Links to these options are found near the bottom of the preview page. For ACS, STIS and NICMOS grism data you may find the HLA another good option.

Acknowledgments

The MAST staff would like to thank the following groups and individuals for help in making the BEFS data, documentation, and WEB site available to the public:

• BEFS Project members Mark Hurwitz, Stuart Bowyer, and Van Dixon (University of California, Berkeley) for advice, permissions to reprint some documentation and information in general on the BEFS project;

• Kluwer Academic Publishers, publishers of "Astrophysics in the Extreme Ultraviolet", for permission to reprint the article "The Berkeley Spectrometer for ORFEUS: Laboratory and In-Flight Performance" by Hurwitz and Bowyer (1996,601). Special thanks go to Berendina Schermers-van Straalen, Rights and Permissions Manager for Kluwer Academic Publishers.