Image improvement from a sodium-layer laser guide star adaptive optics system

被引：160

作者：

Max, CE

Olivier, SS

Friedman, HW

An, K

Avicola, K

Beeman, BV

Bissinger, HD

Brase, JM

Erbert, GV

Gavel, DT

Kanz, K

Liu, MC

Macintosh, B

Neeb, KP

Patience, J

Waltjen, KE

机构：

[1] UNIV CALIF BERKELEY,DEPT ASTRON,BERKELEY,CA 94720

[2] UNIV CALIF LOS ANGELES,DEPT PHYS & ASTRON,LOS ANGELES,CA 90024

来源：

SCIENCE | 1997年 / 277卷 / 5332期

关键词：

D O I：

10.1126/science.277.5332.1649

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A sodium-layer laser guide star beacon with high-order adaptive optics al Lick Observatory (Mount Hamilton, California) produced a factor of 2.4 intensity increase and a factor of 2 decrease in full width at half maximum for an astronomical point source, compared with image motion compensation alone, The image full widths at half maximum were identical for laser and natural guide stars (0.3 are second). The Strehl ratio with the laser guide star was 65 percent of that with a natural guide star, This technique should allow ground-based telescopes to attain the diffraction limit, by correcting for atmospheric distortions.

引用

页码：1649 / 1652

页数：4

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