The Mid-infrared instrument for the James Webb space telescope, V: Predicted performance of the MIRI coronagraphs

A. Boccaletti, P. O. Lagage, P. Baudoz, C. Beichman, P. Bouchet, C. Cavarroc, D. Dubreuil, Alistair Glasse, A. M. Glauser, D. C. Hines, C. P. Lajoie, J. Lebreton, M. D. Perrin, L. Pueyo, J. M. Reess, George H. Rieke, S. Ronayette, D. Rouan, R. Soummer, G. S. Wright

Research output: Contribution to journalArticle

23 Scopus citations

Abstract

The imaging channel on the Mid-Infrared Instrument (MIRI) is equipped with four coronagraphs that provide high-contrast imaging capabilities for studying faint point sources and extended emission that would otherwise be overwhelmed by a bright point-source in its vicinity. Such targets might include stars that are orbited by exoplanets and circumstellar material, mass-loss envelopes around post-main-sequence stars, the near-nuclear environments in active galaxies, and the host galaxies of distant quasars. This paper describes the coronagraphic observing modes of MIRI, as well as performance estimates based on measurements of the MIRI flight model during cryo-vacuum testing. A brief outline of coronagraphic operations is also provided. Finally, simulated MIRI coronagraphic observations of a few astronomical targets are presented for illustration.

Original languageEnglish (US)
Pages (from-to)633-645
Number of pages13
JournalPublications of the Astronomical Society of the Pacific
Volume127
Issue number953
DOIs
StatePublished - Jul 1 2015

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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    Boccaletti, A., Lagage, P. O., Baudoz, P., Beichman, C., Bouchet, P., Cavarroc, C., Dubreuil, D., Glasse, A., Glauser, A. M., Hines, D. C., Lajoie, C. P., Lebreton, J., Perrin, M. D., Pueyo, L., Reess, J. M., Rieke, G. H., Ronayette, S., Rouan, D., Soummer, R., & Wright, G. S. (2015). The Mid-infrared instrument for the James Webb space telescope, V: Predicted performance of the MIRI coronagraphs. Publications of the Astronomical Society of the Pacific, 127(953), 633-645. https://doi.org/10.1086/682256