منابع مشابه
The Cosmic Origins Spectrograph and the Future of Ultraviolet Astronomy
I describe the capabilities of the Cosmic Origins Spectrograph, scheduled for May 2009 installation on the Hubble Space Telescope. With a factor-of-ten increase in far-UV throughput for moderate-resolution spectroscopy, COS will enable a range of scientific programs that study hot stars, AGN, and gas in the interstellar medium, intergalactic medium, and galactic halos. We also plan a large-scal...
متن کاملUltraviolet Astronomy Beyond 2020 Marc Postman and Matt Mountain
UV astronomy has a promising long-term future if astronomers think boldly about where the next frontiers lie in this rich field. The most exciting of these frontiers involve resolving structures near or below angular scales of 20 mas and/or obtaining modest resolution spectroscopy of nanoJansky sources across the 0.11− 2.5 μm wavelength range (the optical and NIR bands provide rest-UV coverage ...
متن کاملImaging performance of telescope mirrors for far-ultraviolet astronomy.
We describe image testing, surface metrology, and modeling of telescope mirrors (0.5 m in diameter, f/4.3) for the Far Ultraviolet Spectroscopic Explorer (FUSE) satellite. Laboratory image testing of wavelengths in the visible, vacuum, and midultraviolet validated a theoretical analysis by use of the Optical Surface Analysis Code (OSAC). Our modeling is based on surface metrology, including mea...
متن کاملPopular astronomy.
The Springer-Praxis Popular Astronomy programme covers the latest observations, techniques and discoveries in astronomy, astrophysics and cosmology, selecting key topics designed to fire the imagination of keen astronomers everywhere. Many of the topics selected for titles in this programme are refreshingly new, and away from the accepted mainstream of titles published in this area. Topics inc...
متن کاملPopular astronomy.
The Springer-Praxis Popular Astronomy programme covers the latest observations, techniques and discoveries in astronomy, astrophysics and cosmology, selecting key topics designed to fire the imagination of keen astronomers everywhere. Many of the topics selected for titles in this programme are refreshingly new, and away from the accepted mainstream of titles published in this area. Topics inc...
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ژورنال
عنوان ژورنال: Highlights of Astronomy
سال: 1968
ISSN: 1539-2996
DOI: 10.1017/s1539299600001039