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A Catalog of X-Ray Spectra of BL Lacertae Objects

Bassani, L.; Ciliegi, P.; Caroli, E.

This paper contains a list of X-ray spectra of BL Lac objects mostly collected from the literature. For a small sample of objects EXOSAT/ME spectra have also been analyzed and included in this list. In the catalog 42 objects are considered (26 radio selected and 16 X-ray selected) for a total of 311 X-ray spectra. For each object we report the X-r…

The Extreme Ultraviolet Spectrograph: A Radial Groove Grating, Sounding Rocket--borne, Astronomical Instrument

Wilkinson, Erik; Green, James C.; Cash, Webster

The design, calibration, and sounding rocket flight performance of a novel spectrograph suitable for moderate-resolution EUV spectroscopy are presented. The sounding rocket-borne instrument uses a radial groove grating to maintain a high system efficiency while controlling the aberrations induced when doing spectroscopy in a converging beam. The i…