active galactic nuclei 1millimeter interferometry 1polarization surveys 1sagittarius a 1vlbi calibration 1
From the 1 of 3 linked papers with an AI index.
3 papers
astro-ph.SR2026
ALMA high resolution observations of Betelgeuse: Persistent structure spanning the inner atmosphere
W. R. F. Dent, A. M. S. Richards, G. M. Harper +2
The extended atmosphere of red supergiants (RSGs) forms an important link in the process of mass loss and the subsequent enrichment of the interstellar medium. Large-scale convecti…
astro-ph.SR2026
New Spatially Resolved Observations of Betelgeuse from the VLA and ALMA: Evidence for Atmospheric Perturbations from a Close Companion
L. D. Matthews, A. K. Dupree, A. M. S. Richards +1
We present new spatially resolved observations of the red supergiant Betelgeuse ( Orionis) at seven frequencies: 22 GHz (1.36cm); 44 GHz (6.8mm); 107 GHz (2.8mm); 136 G…
astro-ph.GA2026
VAPOLA -- A multi-year, multi-band polarization survey of AGN and Sgr A* at mm wavelengths with ALMA I. Survey Overview and Science-Ready Archival Products
Alejandro Mus, Ciriaco Goddi, Douglas Carlos +13
The paper introduces VAPOLA, an online archive of multi‑epoch, multi‑band ALMA polarization observations of AGN and Sgr A*, providing calibrated visibilities, full‑Stokes images, a…