activity
20222024
most citedHigh spectral-resolution interferometry down to 1 micron with Asgard/BIFROST at VLTI: Science drivers and project overview

2 citations · 8 across the 9 of their papers we have counts for

collaborators

9 papers

astro-ph.IM2024

Recent and Upcoming Upgrades for MIRC-X and MYSTIC on the CHARA Array

Noura Ibrahim, Mayra Gutierrez, John D. Monnier +17

MIRC-X and MYSTIC are six-telescope near-infrared beam (1.08-2.38 m) combiners at the CHARA Array on Mt Wilson CA, USA. Ever since the commissioning of MIRC-X (J and H bands) in…

astro-ph.IM20242 cited

Pushing high angular resolution and high contrast observations on the VLTI from Y to L band with the Asgard instrumental suite: integration status and plans

Marc-Antoine Martinod, Denis Defrère, Michael J. Ireland +35

ESO's Very Large Telescope Interferometer has a history of record-breaking discoveries in astrophysics and significant advances in instrumentation. The next leap forward is its new…

astro-ph.EP2024

Vortex Fiber Nulling for Exoplanet Observations: First Direct Detection of M Dwarf Companions around HIP 21543, HIP 94666, and HIP 50319

Daniel Echeverri, Jerry W. Xuan, John D. Monnier +35

Vortex fiber nulling (VFN) is a technique for detecting and characterizing faint companions at small separations from their host star. A near-infrared (m) VFN demonstrat…

astro-ph.IM20231 cited

High-angular resolution and high-contrast VLTI observations from Y to L band with the Asgard instrumental suite

Marc-Antoine Martinod, Denis Defrère, Michael Ireland +17

The Very Large Telescope Interferometer is one of the most proficient observatories in the world for high angular resolution. Since its first observations, it has hosted several in…

astro-ph.IM2022

Gaussian phase autocorrelation as an accurate compensator for FFT-based atmospheric phase screen simulations

Sorabh Chhabra, Jyotirmay Paul, A. N. Ramaprakash +1

Accurately simulating the atmospheric turbulence behaviour is always challenging. The well-known FFT based method falls short in correctly predicting both the low and high frequenc…

astro-ph.IM2022

Speckle simulation tool for automated modelling of a large range of telescope aperture to fried parameter ratios

Sorabh Chhabra, Abhay A. Kohok, Bhushan S. Joshi +3

The Speckle Imager via MUlti Layer Atmospheric Turbulence Object Reconstructor (SIMULATOR) is a lab-based testbed instrument developed to test for speckle correlation-based techniq…