PALM-3000: EXOPLANET ADAPTIVE OPTICS FOR THE 5 m HALE TELESCOPE

被引：121

作者：

Dekany, Richard ^{[1
]}

Roberts, Jennifer ^{[2
]}

Burruss, Rick ^{[2
]}

Bouchez, Antonin ^{[1
]}

Tuan Truong ^{[2
]}

Baranec, Christoph ^{[1
]}

Guiwits, Stephen ^{[2
]}

Hale, David ^{[1
]}

Angione, John ^{[2
]}

Thang Trinh ^{[2
]}

Zolkower, Jeffry ^{[1
]}

Shelton, J. Christopher ^{[2
]}

Palmer, Dean ^{[2
]}

Henning, John ^{[1
]}

Croner, Ernest ^{[1
]}

Troy, Mitchell ^{[2
]}

McKenna, Dan ^{[1
]}

Tesch, Jonathan ^{[2
]}

Hildebrandt, Sergi ^{[1
,2
]}

Milburn, Jennifer ^{[1
]}

机构：

[1] CALTECH, Caltech Opt Observ, Pasadena, CA 91125 USA

[2] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

来源：

ASTROPHYSICAL JOURNAL | 2013年 / 776卷 / 02期

基金：

美国国家科学基金会;

关键词：

atmospheric effects; instrumentation: adaptive optics; minor planets; asteroids:; individual; (Ganymede); planets and satellites: detection; techniques: high angular resolution; techniques: imaging spectroscopy; WAVE-FRONT SENSOR; BROWN DWARF; MASKING INTERFEROMETRY; STELLAR MASS; HR; 8799; SYSTEM; PLANET; COMPANION; RECONSTRUCTION; STAR;

D O I：

10.1088/0004-637X/776/2/130

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We describe and report first results from PALM-3000, the second-generation astronomical adaptive optics (AO) facility for the 5.1 m Hale telescope at Palomar Observatory. PALM-3000 has been engineered for high-contrast imaging and emission spectroscopy of brown dwarfs and large planetary mass bodies at near-infrared wavelengths around bright stars, but also supports general natural guide star use to V approximate to 17. Using its unique 66 x 66 actuator deformable mirror, PALM-3000 has thus far demonstrated residual wavefront errors of 141 nm rms under similar to 1 '' seeing conditions. PALM-3000 can provide phase conjugation correction over a 6 ''.4 x 6 ''.4 working region at lambda = 2.2 mu m, or full electric field (amplitude and phase) correction over approximately one-half of this field. With optimized back-end instrumentation, PALM-3000 is designed to enable 10(-7) contrast at 1 '' angular separation, including post-observation speckle suppression processing. While continued optimization of the AO system is ongoing, we have already successfully commissioned five back-end instruments and begun a major exoplanet characterization survey, Project 1640.

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