3 papers
astro-ph.SR2025
Mid-infrared evidence for iron-rich dust in the multi-ringed inner disk of HD 144432
J. Varga, L. B. F. M. Waters, M. Hogerheijde +40
Context. Rocky planets form by the concentration of solid particles in the inner few au regions of planet-forming disks. Their chemical composition reflects the materials in the di…
astro-ph.SR2024
Imaging the innermost circumstellar environment of the red supergiant WOH G64 in the Large Magellanic Cloud
K. Ohnaka, K. -H. Hofmann, G. Weigelt +3
Significant mass loss in the red supergiant (RSG) phase has great influence on the evolution of massive stars and their final fate as supernovae. We present near-infrared interfero…
astro-ph.SR2024
Contemporaneous high-angular-resolution imaging of the AGB star W Hya in vibrationally excited H2O lines and visible polarized light with ALMA and VLT/SPHERE-ZIMPOL
K. Ohnaka, K. T. Wong, G. Weigelt +1
We present contemporaneous high-angular-resolution millimeter imaging and visible polarimetric imaging of the nearby asymptotic giant branch (AGB) star W Hya to better understand t…