Mr. Brian Dunne Profile

Brian Dunne

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 24 August 2024 Poster

Starshade Exoplanet Data Challenge: what we learned

Renyu Hu, Mario Damiano, Stuart Shaklan, Brian Dunne, Angelle Tanner, Joseph Carson, Sergi Hildebrandt, Doug Lisman

Proceedings Volume 13092, 130925B (2024) https://doi.org/10.1117/12.3018149

Read Abstract +

Starshade is one of the technologies that will enable the observation and characterization of small planets around solar-like stars through direct imaging. Extensive models have been developed to describe a starshade's optical performance and the resulting noise budget in exoplanet imaging. The Starshade Exoplanetary Data Challenge (SEDC) was designed to validate this noise budget and evaluate the capabilities of image-processing techniques, by inviting community participating teams to analyze >1000 simulated images of hypothetical exoplanetary systems observed through a starshade. One of the biggest challenges of the planetary discovery through the direct image technique is the distinction between true planets and structures in exozodiacal disks. Here we summarize the techniques used by the participating teams and compare their findings with the truth. With an independent component analysis to remove the background, about 70% of the inner planets (close to the inner working angle) have been detected and ~40 of the outer planet (fainter than the inner counterparts) have been identified. Also, the inclination of the exozodiacal disk can be inferred from individual images. Planet detection becomes more difficult in the cases of higher disk inclination, as the false negative and false positive numbers increase. Finally, we find that a non-parametric background calibration scheme, such as the independent component analysis reported here, can perform background subtraction close to the photon-noise limit, with a median residual of ~5% the background brightness, for exozodiacal density level ranging between 1 and 30 zodis. The results of the SEDC strongly corroborate the starshade noise budget with realistic images, and provide new insight into background calibration that will be useful for anticipating the science capabilities of future missions that use a starshade.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

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

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years