Simulating high dispersion coronagraphy (HDC) observations for large ground-based telescopes (Conference Presentation)

Ji Wang; Dimitri Mawet

doi:10.1117/12.2312387

10 July 2018 Simulating high dispersion coronagraphy (HDC) observations for large ground-based telescopes (Conference Presentation)

Ji Wang, Dimitri Mawet

Author Affiliations +

Proceedings Volume 10703, Adaptive Optics Systems VI; 107031R (2018) https://doi.org/10.1117/12.2312387
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

Spectroscopy of exoplanets can potentially detect biomarkers in habitable planets around other stars. The high dispersion coronagraphy (HDC) technique provides a pathway to search for biomarkers in planets around M dwarfs with next-generation ground-based extremely large telescopes (ELTs). The HDC consists of a coronagraph operating behind an extreme adaptive optics (AO) system, a single-mode fiber injection unit, and a high resolution spectrometer (HRS). The coronagraph spatially filters out starlight while the HRS spectrally discriminates starlight from planet light, reaching a starlight suppression level that enables biomarker detection. I will simulating ELT HDC instrument performance as a function of wavelength, spectral resolution, starlight suppression, and planet types, considering realistic noise budget that includes speckle noise, thermal and sky background and exozodical background.

Conference Presentation

Citation Download Citation

Ji Wang and Dimitri Mawet "Simulating high dispersion coronagraphy (HDC) observations for large ground-based telescopes (Conference Presentation)", Proc. SPIE 10703, Adaptive Optics Systems VI, 107031R (10 July 2018); https://doi.org/10.1117/12.2312387

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