Share Email Print

Proceedings Paper

Preliminary scientific results from UVSTAR
Author(s): Roberto Stalio; A. Lyle Broadfoot; Vojko Bratina; Jay B. Holberg; Bill R. Sandel; Paolo Trampus
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

UVSTAR, UV Spectrograph Telescope for Astronomical Research operates in the 500-1200 angstrom waveband; it has capability for long slit spectral imaging of extended cosmic sources. UVSTAR has recently flown as a Hitchhiker-M payload on the STS 85 mission of the SHuttle Discovery. UVSTAR is a joint collaboration between the University of Arizona and the University of Trieste. The instrument consists of a movable platform and an optical system The platform provides fine pointing within +/- 3 degrees from the nominal view direction, which is near the shuttle +Y axis, i.e. perpendicular to the long axis of the Shuttle and in the plane of the wings. The optical system has two channels, each formed of a telescope and Rowland concave-grating spectrograph with intensified CCD detector. The first channel, FUV, operates in the 850-1250 angstrom spectral range, the second, EUV, has covered the 500-900 angstrom region. UVSTAR includes capabilities for independent target acquisition and tracking. Here we report FUV observations, obtained in August 1997, of the sdO star BD +28 degrees 4211 which is a secondary flux standard and of the central star of the planetary nebula NGC 246, a hot degenerate star which shows strong OVI lines in the optical region. The UVSTAR spectrum of NGC 246 displays remarkable P Cygni profiles indicating a very fast stellar wind.

Paper Details

Date Published: 28 August 1998
PDF: 9 pages
Proc. SPIE 3356, Space Telescopes and Instruments V, (28 August 1998); doi: 10.1117/12.324440
Show Author Affiliations
Roberto Stalio, Univ. di Trieste and Ctr. for Advanced Research in Space Optics (Italy)
A. Lyle Broadfoot, Univ. of Arizona (United States)
Vojko Bratina, Ctr. for Advanced Research in Space Optics (Italy)
Jay B. Holberg, Ctr. for Advanced Research in Space Optics (United States)
Bill R. Sandel, Univ. of Arizona (United States)
Paolo Trampus, Ctr. for Advanced Research in Space Optics (Italy)

Published in SPIE Proceedings Vol. 3356:
Space Telescopes and Instruments V
Pierre Y. Bely; James B. Breckinridge, Editor(s)

© SPIE. Terms of Use
Back to Top