Skip to main content Accessibility help
×
Home

High Dynamic Range and the Search for Planets

  • A. T. Tokunaga (a1), C. Ftaclas (a1), J. R. Kuhn (a1) and P. Baudoz (a1)

Abstract

General arguments for optimized coronagraphy in the search for planets are presented. First, off-axis telescopes provide the best telescopic platforms for use with coronagraphy, and telescope fabrication technology now allows the fabrication of such telescopes with diameters of up to 6.5 m. We show that in certain circumstances a smaller telescope with an off-axis primary has a signal-to-noise advantage compared with larger Cassegrain telescopes. Second, to fully exploit the advantages of the coronagraph for suppressing stray light, it is necessary to use a high Strehl ratio adaptive optics system. This can be best achieved initially with modest aperture telescopes of 3–4 m in diameter. Third, application of simultaneous differential imaging and simultaneous polarimetric techniques are required to reach the photon-limit of coronagraphic imaging. These three developments, if pursued together, will yield significant improvements in the search for planets.

    • Send article to Kindle

      To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

      Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

      Find out more about the Kindle Personal Document Service.

      High Dynamic Range and the Search for Planets
      Available formats
      ×

      Send article to Dropbox

      To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

      High Dynamic Range and the Search for Planets
      Available formats
      ×

      Send article to Google Drive

      To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

      High Dynamic Range and the Search for Planets
      Available formats
      ×

Copyright

References

Hide All
Ftaclas, C. 1994, in Infrared Tools for Solar Astrophysics, What's Next?, ed. Kuhn, J. R. & Penn, M. J. (Singapore: World Scientific)
Ftaclas, C., Martín, E. L., & Toomey, D. 2003, this volume
Jewitt, D. C., & Luu, J. X. 1993, Nature, 362, 730
Kuhn, J. R., & Hawley, S. L. 1999, PASP, 111, 601
Kuhn, J. R., Potter, D., & Parise, B. 2001a, ApJ, 553, L189
Kuhn, J. R., Moretto, G., Racine, R., Roddier, F., & Coulter, R. 2001b, PASP, 113, 1486
Lai, O. 2001, in Beyond Conventional Adaptive Optics, ed. Ragazzoni, R., Hubin, N., & Esposito, S. (Venice: ESO)
Marois, C., Doyon, R., & Nadeau, D. 2003, this volume
Mayor, M., & Queloz, D. 1995, Nature, 378, 355
Nakajima, T., Oppenheimer, B. R., Kulkarni, S. R., Golimowski, D. A., Matthews, K., & Durrance, S. T. 1995, Nature, 378, 463
Oppenheimer, B. R., Sivaramakrishnan, , & Makidon, R. B. 2002, in The Future of Small Telescopes, ed. Oswalt, T. (Dordrecht: Kluwer)
Oppenheimer, B. R., et al. 2003, this volume
Rebolo, R., Zapatero-Osorio, M. R., & Martín, E. L. 1995, Nature, 377, 129
Schroeder, D. 1987, Astronomical Optics (San Diego: Academic Press), 185
Sivaramakrishnan, A., Koresko, C. D., Makidon, R. B., Berkefeld, T., & Kuchner, M. J. 2001, ApJ, 552, 397

Related content

Powered by UNSILO

High Dynamic Range and the Search for Planets

  • A. T. Tokunaga (a1), C. Ftaclas (a1), J. R. Kuhn (a1) and P. Baudoz (a1)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed.