A Tale of Two Transition Disks: ALMA long-baseline observations of ISO-Oph 2 reveal two closely packed non-axisymmetric rings and a $\sim$2 au cavity

no code implementations • 7 Oct 2020 • Camilo González-Ruilova, Lucas A. Cieza, Antonio S. Hales, Sebastián Pérez, Alice Zurlo, Carla Arce-Tord, Simón Casassus, Hector Cánovas, Mario Flock, Gregory J. Herczeg, Paola Pinilla, Daniel J. Price, David A. Principe, Dary Ruíz-Rodríguez, Jonathan P. Williams

ISO-Oph 2 is a wide-separation (240 au) binary system where the primary star harbors a massive (M$_{dust}$ $\sim$40 M$_{\oplus}$) ring-like disk with a dust cavity $\sim$50 au in radius and the secondary hosts a much lighter (M$_{dust}$ $\sim$0. 8 M$_{\oplus}$) disk.

Earth and Planetary Astrophysics Solar and Stellar Astrophysics 85-11 J.2

Resolved spectral variations of the centimetre-wavelength continuum from the rho Oph W photo-dissociation-region

no code implementations • 1 Oct 2020 • Simon Casassus, Matias Vidal, Carla Arce-Tord, Clive Dickinson, Glenn J. White, Michael Burton, Balthasar Indermuehle, Brandon Hensley

The EME is particularly bright in the regions of the rho Ophiuchi molecular cloud (rho Oph) that surround the earliest type star in the complex, HD 147889, where the peak signal stems from the filament known as the rho Oph-W PDR.

Image Generation Astrophysics of Galaxies