1 / 12

UV astronomy in the post-GALEX era

UV astronomy in the post-GALEX era. Noah Brosch Wise Observatory Tel Aviv University Israel. Missions described. TAUVEX on GSAT-4 Israeli mission on Indian geo-sat (2005/6) UVIT on ASTROSAT UV/optical imagers on multi-spectral astronomy mission of India (2007/8) WSO/UV

maren
Download Presentation

UV astronomy in the post-GALEX era

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. UV astronomy in the post-GALEX era Noah Brosch Wise Observatory Tel Aviv University Israel VLST workshop; STScI February 2004

  2. Missions described • TAUVEX on GSAT-4 • Israeli mission on Indian geo-sat (2005/6) • UVIT on ASTROSAT • UV/optical imagers on multi-spectral astronomy mission of India (2007/8) • WSO/UV • International large space telescope for UV astronomy (2008+) VLST workshop; STScI February 2004

  3. GSAT-4 and TAUVEX • TAUVEX: from SRG to GSAT-4 • Mode changed from pointed observations to sky scans • Three-telescope array: 20-cm & 1 degree FOV, four filters/telescope VLST workshop; STScI February 2004

  4. The GSAT-4 satellite The GSAT-4 Spacecraft is an Experimental Technology Demonstrator for Advanced Satellite Communication Systems. TAUVEX is its only scientific payload VLST workshop; STScI February 2004

  5. TAUVEX on GSAT-4 GSAT-4 consists of: • Ka-Band Regenerative and Bent Pipe transponder • Geostationary Navigation Payload • Scientific Payload (TAUVEX) • Bus System experiments VLST workshop; STScI February 2004

  6. TAUVEX on GSAT-4 • TAUVEX on rotating platform • Constant-declination scans • Dedicated high-speed telemetry link (always available) VLST workshop; STScI February 2004

  7. Expected performance • Assume low straylight (best case) • Performance with SF-2 (210+/-20 nm) for different spectral types • Lines for monochromatic mag. 17, 18, 19, 20, 21 star VLST workshop; STScI February 2004

  8. ASTROSAT is an Indian-national scientific satellite to be launched in 2007. Polar orbit (sun-synchronous) offers long integrations only in CVZ. Operation to be targeted to interesting sources. VLST workshop; STScI February 2004

  9. UVIT to operate in conjunction with the X-ray telescopes VLST workshop; STScI February 2004

  10. World Space Observatory/UV WSO/UV: 1.7-meter telescope at 2nd Lagrangian point. Its mission: high spectral resolution UV spectroscopy, combined with high-angular-resolution imaging. Image quality: 80% enclosed energy= 0”.35@633 nm & 0”.07@122 nm Main instruments: 2xHIRES (R=55000) +one long slit R~1000 spectrograph. VLST workshop; STScI February 2004 http://wso.vilspa.esa.es

  11. WSO/UV: imaging focal plane Six imaging devices: four for UV and two for optical. Wide field=5 arcmin @ 0”.15/pixel (f/10); high resolution=1 arcmin FOV @ 0”.03/pixel (f/50). Integral filter wheels (six filters+empty position per camera) VLST workshop; STScI February 2004

  12. When will WSO/UV happen? T170M telescope @ Lavotchkin VLST workshop; STScI February 2004

More Related