High spectral-resolution interferometry down to one micron with Asgard/BIFROST at VLTI: science drivers and project overview

Stefan Kraus; Daniel Mortimer; Sorabh Chhabra; Yi Lu; Isabelle Codron; Tyler Gardner; Narsireddy Anugu; John D. Monnier; Jean-Baptiste Le Bouquin; Michael Ireland; Frantz Martinache; Denis Defrère; Marc-Antoine Martinod

doi:10.1117/12.2627973

26 August 2022 High spectral-resolution interferometry down to one micron with Asgard/BIFROST at VLTI: science drivers and project overview

Stefan Kraus, Daniel Mortimer, Sorabh Chhabra, Yi Lu, Isabelle Codron, Tyler Gardner, Narsireddy Anugu, John D. Monnier, Jean-Baptiste Le Bouquin, Michael Ireland, Frantz Martinache, Denis Defrère, Marc-Antoine Martinod

Author Affiliations +

Proceedings Volume 12183, Optical and Infrared Interferometry and Imaging VIII; 121831S (2022) https://doi.org/10.1117/12.2627973
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

We present science cases and instrument design considerations for the BIFROST instrument that will open the short-wavelength (Y/J/H-band), high spectral dispersion (up to R=25,000) window for the VLT Interferometer. BIFROST will be part of the Asgard Suite of instruments and unlock powerful venues for studying accretion & mass-loss processes at the early/late stages of stellar evolution, for detecting accreting protoplanets around young stars, and for probing the spin-orbit alignment in directly-imaged planetary systems and multiple star systems. Our survey on GAIA binaries aims to provide masses and precision ages for a thousand stars, providing a legacy data set for improving stellar evolutionary models as well as for Galactic Archaeology. BIFROST will enable off-axis spectroscopy of exoplanets in the 0.025-1" separation range, enabling high-SNR, high spectral resolution follow-up of exoplanets detected with ELT and JWST. We give an update on the status of the project, outline our key technology choices, and discuss synergies with other instruments in the proposed Asgard Suite of instruments.

Conference Presentation

Citation Download Citation

Stefan Kraus, Daniel Mortimer, Sorabh Chhabra, Yi Lu, Isabelle Codron, Tyler Gardner, Narsireddy Anugu, John D. Monnier, Jean-Baptiste Le Bouquin, Michael Ireland, Frantz Martinache, Denis Defrère, and Marc-Antoine Martinod "High spectral-resolution interferometry down to one micron with Asgard/BIFROST at VLTI: science drivers and project overview", Proc. SPIE 12183, Optical and Infrared Interferometry and Imaging VIII, 121831S (26 August 2022); https://doi.org/10.1117/12.2627973

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