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ExEP Technology Web Colloquium



Multi-Star Wavefront Control: A Method for Exoplanet Imaging in Multi-Star Systems
Ruslan Belikov (NASA/Ames)

The technology to directly image exoplanets has been steadily advancing for more than a decade. It enables future space missions such as WFIRST, LUVOIR, and HabEx to directly image planets by reflected light and possibly find evidence of life on them. However, many prime multi-star systems are reluctantly omitted from the target lists of missions because mature starlight suppression technology for multi-star systems does not yet exist. Enabling the study of multi-star systems is very important because more than half of Sun-like stars belong to multi-star systems. This includes Alpha Centauri A and B, which would probably be the best target for any direct imaging mission (by a large margin), if it was not a binary.

This talk will cover the science motivation as well as the progress in technology development of Multi-Star Wavefront Control (MSWC), a method to directly image planets and disks in multi-star systems. This method works with almost any coronagraph (or external occulter with a DM) and requires little or no change to existing and mature hardware. Because of the ubiquity of multistar systems, this method potentially broadens the science yield of many missions and concepts such as WFIRST, Exo-C/S, HabEx, LUVOIR, and potentially enables the detection of Earth-like planets (if they exist) around our nearest neighbor star, Alpha Centauri, with a small and low-cost space telescope such as ACESat or Project Blue, in addition to the larger missions.

Webex connection info is below.

WebEx connection info:
To join the meeting:

Join by phone
+1-510-210-8882 USA Toll
Global call-in numbers

Meeting number (access code): 901 073 162

JPL Local: 818-35(4-4044)
Toll Free: 844-JPL-WEBX (844-575-9329)
As always, the talk will be recorded and archived so you can view it later, but I hope you can join us live. For more info on the seminar series, see the ExEP Technology Colloquia website. The intention of these web seminars is to provide a forum for sharing key technology advances and results that enable or enhance the direct imaging and characterization of exoplanets. Topics may include recent coronagraph and starshade demonstration results, advances in detector technology, deformable mirrors, LOWFS/C, telescope stability, polarization, RV, starshade tutorials, etc. Our target audience is the engineers and scientists working on the WFIRST project and the HabEx and LUVOIR study concepts, but all are welcome to attend.

Date October 24, 2017
Start/End Time 01:00 PM - 02:00 PM
Location WebEx
Contact Brendan Crill
Email Address
Event Type Seminars/Colloquia
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