Author

Benjamin J. S. Pope

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Preprint Sep 2026

A Candidate Innermost Fifth Planet In the HR 8799 System Revealed By JWST NIRISS Aperture Masking Interferometry

We detect a candidate fifth planet in the HR 8799 system, directly imaged with the JWST/NIRISS Aperture Masking Interferometer (AMI). The detected source lies just above a $3\sigma$ contrast curve at a contrast of $\sim2\times10^{-4}$ in the F380M filter at a projected separation of $\sim150$ mas, corresponding to a fe...

Jayke S. Nguyen, L. Desdoigts, A. Greenbaum et al. · 0 citations

Review Open access Sep 2026

Asteroseismology and interferometry of the F7V spectroscopic binary χ Draconis A in the TESS CVZ

Asteroseismology provides precise stellar parameters, which are particularly useful for benchmark stars with accurate independent measurements. However, most benchmark solar-like oscillators are red giants. We present a detailed analysis of the asteroseismic main-sequence benchmark star ̧hi Dra A in the Transiting Exop...

J. Rudrasingam, M. Lund, F. Grundahl et al. · Astronomy & Astrophysics · 0 citations