Comptes Rendus
The Lyot Project: status and results
[Le projet Lyot : état actuel et résultats]
Comptes Rendus. Physique, Volume 8 (2007) no. 3-4, pp. 355-364.

Cet article présente un historique et quelques résulats du coronographe du ‘Lyot Project’, installé sur le télescope AEOS de 3,6 m à Maui (Hawaii). Cet instrument est le premier coronographe à fonctionner avec une optique adaptive extrême (941 actuateurs) qui ouvre de nouvelles possibilités pour la recherche de compagnons faibles en bande JHK autour d'étoiles proches. Cet instrument est également un précurseur pour les projets en développement comme ESO/SPHERE ou Gemini/GPI. En particulier, il a été utilisé pour tester un dispositif permettant l'astrométrie et la photométrie de précision en mode coronograhique grâce à une grille en plan pupille pour former des images satellites stables de l'étoile. Les données du projet Lyot ont également permis de montrer les effets des actuateurs bloqués sur un miroir déformable, de raffiner la technique d'imagerie différentielle angulaire dans le cas d'observations au foyer coudé d'un télescope Alt-Az et de développer une méthode pour le traitement de données coronographiques.

We present a retrospective on, and some new imaging data from The Lyot Project JHK coronagraph which is used behind the 3.6 m AEOS 941-channel AO telescope on Mt. Haleakala, on the island of Maui in Hawaii. This instrument is the first ‘extreme adaptive optics’ (ExAO) coronagraph ever; it opens up new scientific search spaces in direct imaging of faint companions of nearby stars. It also blazed a trail for current ExAO systems being developed for ESO-VLT and Gemini telescopes. Amongst other things, the Lyot Project has been used to demonstrate a device for precision coronagraphic astrometry and photometry using the novel technique of placing a wire grid over the pupil to create stable fiducial ghost images, to show the effects of frozen actuators on a deformable mirror, to refine angular differential imaging for use on the Coudé focus of Alt-Az telescopes, and to develop a coronagraphic data reduction pipeline.

Publié le :
DOI : 10.1016/j.crhy.2007.04.001
Keywords: Instrumentation, Adaptive optics, Coronagraphy, Planet detection, Simultaneous polarization, Astrometry, Photometry
Mot clés : Instrumentation, Optique adaptative, Coronographie, Detection d'exoplanètes, Polarimétrie différentielle, Astrometrie, Photométrie

Anand Sivaramakrishnan 1 ; Ben R. Oppenheimer 1 ; Sasha Hinkley 1 ; Douglas Brenner 1 ; Rémi Soummer 1 ; Jacob L. Mey 2 ; James P. Lloyd 3 ; Marshall D. Perrin 4 ; James R. Graham 4 ; Russell B. Makidon 5 ; Lewis C. Roberts 6 ; Jeffrey R. Kuhn 7

1 Astrophysics Department, American Museum of Natural History, 79th Street and Central Park West, New York, NY 10024, USA
2 Microscopy and Imaging Facility, American Museum of Natural History, 79th Street and Central Park West, New York, NY 10024, USA
3 Astronomy Department, Cornell University, 230 Space Sciences Building, Ithaca, NY 14853, USA
4 Astronomy Department, 601 Campbell Hall, University of California, Berkeley, CA 94720, USA
5 Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
6 The Boeing Company, 535 Lipoa Pkwy, Suite 200, Kihei, HI 96753, USA
7 Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822, USA
@article{CRPHYS_2007__8_3-4_355_0,
     author = {Anand Sivaramakrishnan and Ben R. Oppenheimer and Sasha Hinkley and Douglas Brenner and R\'emi Soummer and Jacob L. Mey and James P. Lloyd and Marshall D. Perrin and James R. Graham and Russell B. Makidon and Lewis C. Roberts and Jeffrey R. Kuhn},
     title = {The {Lyot} {Project:} status and results},
     journal = {Comptes Rendus. Physique},
     pages = {355--364},
     publisher = {Elsevier},
     volume = {8},
     number = {3-4},
     year = {2007},
     doi = {10.1016/j.crhy.2007.04.001},
     language = {en},
}
TY  - JOUR
AU  - Anand Sivaramakrishnan
AU  - Ben R. Oppenheimer
AU  - Sasha Hinkley
AU  - Douglas Brenner
AU  - Rémi Soummer
AU  - Jacob L. Mey
AU  - James P. Lloyd
AU  - Marshall D. Perrin
AU  - James R. Graham
AU  - Russell B. Makidon
AU  - Lewis C. Roberts
AU  - Jeffrey R. Kuhn
TI  - The Lyot Project: status and results
JO  - Comptes Rendus. Physique
PY  - 2007
SP  - 355
EP  - 364
VL  - 8
IS  - 3-4
PB  - Elsevier
DO  - 10.1016/j.crhy.2007.04.001
LA  - en
ID  - CRPHYS_2007__8_3-4_355_0
ER  - 
%0 Journal Article
%A Anand Sivaramakrishnan
%A Ben R. Oppenheimer
%A Sasha Hinkley
%A Douglas Brenner
%A Rémi Soummer
%A Jacob L. Mey
%A James P. Lloyd
%A Marshall D. Perrin
%A James R. Graham
%A Russell B. Makidon
%A Lewis C. Roberts
%A Jeffrey R. Kuhn
%T The Lyot Project: status and results
%J Comptes Rendus. Physique
%D 2007
%P 355-364
%V 8
%N 3-4
%I Elsevier
%R 10.1016/j.crhy.2007.04.001
%G en
%F CRPHYS_2007__8_3-4_355_0
Anand Sivaramakrishnan; Ben R. Oppenheimer; Sasha Hinkley; Douglas Brenner; Rémi Soummer; Jacob L. Mey; James P. Lloyd; Marshall D. Perrin; James R. Graham; Russell B. Makidon; Lewis C. Roberts; Jeffrey R. Kuhn. The Lyot Project: status and results. Comptes Rendus. Physique, Volume 8 (2007) no. 3-4, pp. 355-364. doi : 10.1016/j.crhy.2007.04.001. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2007.04.001/

[1] M. Troy, R.G. Dekany, G. Brack, B.R. Oppenheimer, E.E. Bloemhof, T.L. Hayward, T. Trinh, F.G. Dekens, F. Shi, B. Brandl, Palomar adaptive optics project: Status and performance, in: Adaptive Optical Systems Technologies, Proceedings of the SPIE, vol. 4007, 2000, pp. 31–40

[2] T.L. Hayward; B. Brandl; B. Pirger; C. Blacken; G.E. Gull; J. Schoenwald; J. Houck PHARO: a near-infrared camera for the Palomar Hale 5 m telescope, Publications of the Astronomical Society of the Pacific, Volume 113 ( February 2001 ), pp. 105-118

[3] A. Sivaramakrishnan; C.D. Koresko; R.B. Makidon; T. Berkefeld; M.J. Kuchner Ground-based coronagraphy with high-order adaptive optics, Astrophys. J., Volume 552 ( May 2001 ), pp. 397-408

[4] B.R. Oppenheimer, R.G. Dekany, T.L. Hayward, B. Brandl, M. Troy, E.E. Bloemhof, Companion detection limits with adaptive optics coronagraphy, in: Adaptive Optical Systems Technologies, Proceedings of the SPIE, vol. 4007, 2000, pp. 899–905

[5] B. Lyot The study of the solar corona and prominences without eclipses (George Darwin lecture, 1939), Monthly Notices of the Royal Astronomical Society, Volume 99 ( June 1939 ), p. 580

[6] B.A. Macintosh, B. Bauman, J. Wilhelmsen Evans, J.R. Graham, C. Lockwood, L. Poyneer, D. Dillon, D.T. Gavel, J.J. Green, J.P. Lloyd, R.B. Makidon, S. Olivier, D. Palmer, M.D. Perrin, S. Severson, A.I. Sheinis, A. Sivaramakrishnan, G. Sommargren, R. Soummer, M. Troy, J.K. Wallace, E. Wishnow, Extreme adaptive optics planet imager: overview and status, in: Advancements in Adaptive Optics, Proceedings of the SPIE, vol. 5490, October 2004, 359–369

[7] J.-L. Beuzit, M. Feldt, D. Mouillet, C. Moutou, K. Dohlen, P. Puget, T. Fusco, P. Baudoz, A. Boccaletti, S. Udry, D. Ségransan, R. Gratton, M. Turatto, H.-M. Schmid, R. Waters, D. Stam, P. Rabou, A.-M. Lagrange, F. Ménard, J.-C. Augereau, M. Langlois, F. Vakili, L. Arnold, T. Henning, D. Rouan, M. Kasper, N. Hubin, A planet finder instrument for the VLT, in: C. Aime, F. Vakili (Eds.), IAU Colloq. 200: Direct Imaging of Exoplanets: Science & Techniques, 2006, pp. 317–322

[8] J.P. Lloyd, J.R. Graham, P. Kalas, B.R. Oppenheimer, A. Sivaramakrishnan, R.B. Makidon, B.A. Macintosh, C.E. Max, P. Baudoz, J.R. Kuhn, D. Potter, Astronomical coronagraphy with high-order adaptive optics systems, in: A.R. Pirich, P.L. Repak, P.S. Idell, S.R. Czyzak (Eds.), Multifrequency Electronic/Photonic Devices and Systems for Dual-Use Applications, Proceedings of the SPIE, vol. 4490, December 2001, pp. 290–297

[9] M.D. Perrin, J.R. Graham, M. Trumpis, J.R. Kuhn, K. Whitman, R. Coulter, J.P. Lloyd, L.C. Roberts, First light with the kermit, in: P.W. Kervin, J.L. Africano (Eds.), 2002 AMOS Technical Conference, March 2003

[10] J.P. Lloyd; A. Sivaramakrishnan Tip-tilt error in Lyot coronagraphs, Astrophys. J., Volume 621 ( March 2005 ), pp. 1153-1158

[11] A. Sivaramakrishnan; R. Soummer; A.V. Sivaramakrishnan; J.P. Lloyd; B.R. Oppenheimer; R.B. Makidon Low-order aberrations in band-limited Lyot coronagraphs, Astrophys. J., Volume 634 ( December 2005 ), pp. 1416-1422

[12] A. Sivaramakrishnan; J.P. Lloyd Spiders in Lyot coronagraphs, Astrophys. J., Volume 633 ( November 2005 ), pp. 528-533

[13] A. Sivaramakrishnan, M.D. Perrin, R.B. Makidon, R. Soummer, B.R. Oppenheimer, A.P. Digby, Performance predictions of second stage adaptive optics coronagraphy on the AEOS telescope, in: P.W. Kervin, J.L. Africano (Eds.), 2003 AMOS Technical Conference, September 2003

[14] A. Sivaramakrishnan, B.R. Oppenheimer, M.D. Perrin, L.C. Roberts, R.B. Makidon, R. Soummer, A.P. Digby, L.W. Bradford, M.A. Skinner, N.H. Turner, T.A. Ten Brummelaar, Scintillation and pupil illumination in AO coronagraphy, in: C. Aime, F. Vakili (Eds.), IAU Colloq. 200: Direct Imaging of Exoplanets: Science & Techniques, 2006, pp. 613–616

[15] B.R. Oppenheimer, A. Sivaramakrishnan, M.D. Perrin, R.B. Makidon, R. Soummer, L.C. Roberts, L.W. Bradford, M.A. Skinner, T. Ten Brummelaar, N.H. Turner, Scintillation in high dynamic range coronagraphy, in: P.W. Kervin, J.L. Africano (Eds.), 2005 AMOS Technical Conference, September 2005

[16] M.D. Perrin; J.R. Graham; P. Kalas; J.P. Lloyd; C.E. Max; D.T. Gavel; D.M. Pennington; E.L. Gates Laser guide star adaptive optics imaging polarimetry of Herbig Ae/Be stars, Science, Volume 303 ( February 2004 ), pp. 1345-1348

[17] A.P. Digby; S. Hinkley; B.R. Oppenheimer; A. Sivaramakrishnan; J.P. Lloyd; M.D. Perrin; L.C. Roberts; R. Soummer; D. Brenner; R.B. Makidon; M. Shara; J. Kuhn; J. Graham; P. Kalas; L. Newburgh The challenges of coronagraphic astrometry, Astrophys. J., Volume 650 ( October 2006 ), pp. 484-496

[18] A. Sivaramakrishnan; B.R. Oppenheimer Astrometry and photometry with coronagraphs, Astrophys. J., Volume 647 ( August 2006 ), pp. 620-629

[19] C. Marois; D. Lafrenière; B.A. Macintosh; R. Doyon Accurate astrometry and photometry of saturated and coronagraphic point spread functions, Astrophys. J., Volume 647 ( August 2006 ), pp. 612-619

[20] C. Aime; R. Soummer; A. Ferrari Total coronagraphic extinction of rectangular apertures using linear prolate apodizations, Astron. Astrophys., Volume 389 (2002), pp. 334-344

[21] R. Soummer; C. Aime; P.E. Falloon Stellar coronagraphy with prolate apodized circular apertures, Astron. Astrophys., Volume 397 ( January 2003 ), pp. 1161-1172

[22] R. Soummer Apodized pupil Lyot coronagraphs for arbitrary telescope apertures, Astrophys. J., Volume 618 ( January 2005 ), p. L161-L164

[23] B.R. Oppenheimer, A.P. Digby, L. Newburgh, D. Brenner, M. Shara, J. Mey, C. Mandeville, R.B. Makidon, A. Sivaramakrishnan, R. Soummer, J.R. Graham, P. Kalas, M.D. Perrin, L.C. Roberts, J.R. Kuhn, K. Whitman, J.P. Lloyd, The Lyot project: toward exoplanet imaging and spectroscopy, in: D. Bonaccini Calia, B.L. Ellerbroek, R. Ragazzoni (Eds.), Advancements in Adaptive Optics, Proceedings of the SPIE, vol. 5490, October 2004, pp. 433–442

[24] L.W. Bradford, L.C. Roberts, M.A. Skinner, A.P. Digby, B.R. Oppenheimer, M.D. Perrin, N.H. Turner, Observations of scintillation with AEOS, in: P.W. Kervin, J.L. Africano (Eds.), 2005 AMOS Technical Conference, September 2005

[25] S. Hinkley; B.R. Oppenheimer; R. Soummer; A. Sivaramakrishnan; L.C. Roberts; J. Kuhn; R.B. Makidon; M.D. Perrin; J.P. Lloyd; K. Kratter; D. Brenner Temporal evolution of coronagraphic dynamic range and constraints on companions to Vega, Astrophys. J., Volume 654 ( January 2007 ), pp. 633-640

[26] C. Marois; D. Lafrenière; R. Doyon; B.A. Macintosh; D. Nadeau Angular differential imaging: A powerful high contrast technique, Astrophys. J., Volume 641 ( April 2006 ), pp. 556-564

[27] B.A. Biller, L.M. Close, E. Masciadri, R. Lenzen, W. Brandner, D. McCarthy, T. Henning, E.L. Nielsen, M. Hartung, S. Kellner, K. Geissler, M. Kasper, Contrast limits with the Simultaneous Differential Extrasolar Planet Imager (SDI) at the VLT and MMT, in: B.L. Ellerbroek, C.D. Bonaccini (Eds.), Advances in Adaptive Optics II, Proceedings of the SPIE, vol. 6272, July 2006, pp. 62722D

[28] M. Kasper; N. Ageorges; A. Boccaletti; W. Brandner; L.M. Close; R. Davies; G. Finger; R. Genzel; M. Hartung; A. Kaufer; S. Kellner; N. Hubin; R. Lenzen; C. Ludman; G. Monnet; A. Moorwood; T. Ott; P. Riaud; H.-J. Roser; D. Rouan; J. Spyromilio New observing modes of NACO, The Messenger, Volume 119 ( March 2005 ), p. 11

Cité par Sources :

Commentaires - Politique