WFIRST-AFTA coronagraph instrument overview

Feng Zhao

doi:10.1117/12.2060319

2 August 2014 WFIRST-AFTA coronagraph instrument overview

Feng Zhao

Proceedings Volume 9143, Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave; 91430O (2014) https://doi.org/10.1117/12.2060319
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

The WFIRST-AFTA coronagraph will directly image exoplanets and disks around nearby stars, and obtain spectra. The coronagraph has photometric bands covering about 400-1000 nm, and an integral field spectrometer with a resolution of about 70. The range of sensitivity in angular separation from a star is about 0.1 to 0.6 arc-seconds. The limiting contrast is about 10^-9, and a goal of 10^-10. The engineering development program is focused on low-order wavefront sensing and control, coronagraph masks, coronagraph performance, speckle detection and suppression, post-processing algorithms, an integral field spectrometer, and low-noise detectors. Progress and plans in these areas will be reviewed.

Citation Download Citation

Feng Zhao "WFIRST-AFTA coronagraph instrument overview", Proc. SPIE 9143, Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave, 91430O (2 August 2014); https://doi.org/10.1117/12.2060319

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available