Extreme adaptive optics planet imager: XAOPI

被引：11

作者：

Macintosh, B ^{[1
]}

Graham, J ^{[1
]}

Poyneer, L ^{[1
]}

Sommargren, G ^{[1
]}

Wilhelmsen, J ^{[1
]}

Gavel, D ^{[1
]}

Jones, S ^{[1
]}

Kalas, P ^{[1
]}

Lloyd, J ^{[1
]}

Makidon, R ^{[1
]}

Olivier, S ^{[1
]}

Palmer, D ^{[1
]}

Patience, J ^{[1
]}

Perrin, M ^{[1
]}

Severson, S ^{[1
]}

Shein, A ^{[1
]}

Sivaramakrishnan, A ^{[1
]}

Troy, M ^{[1
]}

Wallace, K ^{[1
]}

机构：

[1] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA

来源：

TECHNIQUES AND INSTRUMENTATION FOR DETECTION OF EXOPLANETS | 2003年 / 5170卷

关键词：

adaptive optics; extrasolar planets; MOEMS;

D O I：

10.1117/12.506836

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Ground based adaptive optics is a potentially powerful technique for direct imaging detection of extrasolar planets. Turbulence in the Earth's atmosphere imposes some fundamental limits, but the large size of around-based telescopes compared to spacecraft can work to mitigate this. We are carrying out a design study for a dedicated ultra-high-contrast system, the eXtreme Adaptive Optics Planet Imager (XAOPI), which could be deployed on an 8-10m telescope in 2007. With a 4096-actuator MEMS deformable mirror it should achieve Strehl >0.9 in the near-IR. Using an innovative spatially filtered wavefront sensor, the system will be optimized to control scattered light over a large radius and suppress artifacts caused by static errors. We predict that it will achieve contrast levels of 10(7)-10(8) at angular separations of 0.2-0.8" around a large sample of stars (R<7-10), sufficient to detect Jupiter-like planets through their near-IR emission over a wide range of ages and masses. We are constructing, a high-contrast AO testbed to verify key concepts of our system, and present preliminary results here, showing an RMS wavefront error of <1.3 nm with a flat mirror.

引用

页码：272 / 282

页数：11

共 21 条

[1] GROUND-BASED IMAGING OF EXTRASOLAR PLANETS USING ADAPTIVE OPTICS [J].

ANGEL, JRP .

NATURE, 1994, 368 (6468) :203-207

[2] A nongray theory of extrasolar giant planets and brown dwarfs [J].

Burrows, A ;

Marley, M ;

Hubbard, WB ;

Lunine, JI ;

Guillot, T ;

Saumon, D ;

Freedman, R ;

Sudarsky, D ;

Sharp, C .

ASTROPHYSICAL JOURNAL, 1997, 491 (02) :856-875

[3]

GRAHAM J, 2003, UNPUB PASP

[4]

JAYWARDHANA R, 2001, ASP C SERIES, V244

[5]

KRULEVITCH P, 2003, P SOC PHOTO-OPT INS, V4985, P172

[6] Imaging polarimetric observations of a new circumstellar disk system [J].

Kuhn, JR ;

Potter, D ;

Parise, B .

ASTROPHYSICAL JOURNAL, 2001, 553 (02) :L189-L191

[7]

Macintosh B. A., 2002, Proceedings of the SPIE - The International Society for Optical Engineering, V4494, P60, DOI 10.1117/12.454815

[8] Efficient speckle noise attenuation in paint companion imaging [J].

Marois, C ;

Doyon, R ;

Racine, R ;

Nadeau, D .

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 2000, 112 (767) :91-96

[9]

PERRIN MD, 2003, IN PRESS AP J

[10]

POYNEER L, 2003, IN PRESS P SPIE, P5169

← 1 2 3 →