Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998newar..42..557a&link_type=abstract
New Astronomy Reviews, Volume 42, Issue 6-8, p. 557-562.
Astronomy and Astrophysics
Astronomy
1
Scientific paper
Some programmes in astrophysics, in early progress and being planned, needing telescopes with high light-collecting power and excellent image quality, are presented and discussed. Special references are made to a study of star formation in, and heavy element abundance and evolution of, the bar of the Large Magellanic Cloud. Passive and active optical systems as well as live optics and adaptive optics are considered. Applications to telescopes of different sizes are commented on. Main features of telescopes with mirror diameters larger than 25 metres are described, as are possible optical and mechanical layouts. Examples of live optics systems are demonstrated and some quality estimates commented on. Different types of corrections for effects of atmospheric turbulence are compared. Steerable mirror segments and their possible locations in extremely large telescopes are debated together with considerations regarding the size of such segments as well as implications regarding image quality and project cost. Finally, some potential problem areas and corresponding possible remedies are considered.
Andersen Torsten
Ardeberg Arne
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