seba

A song of Ice and Fire, i.e., outbursting flaring star pushing water snow line far away allowing for it to be observed. First time for water.

The actual image shows a drop in optical depth that matches condensation temperature of water located at 50 au away from the star (that’s too far, not expected). Photons presented here are of the 220 GHz variety (1.2mm wavelengths), seen through ALMA Observatory.

Why important? Evidence for migrating snow lines during early evolution of stars = cool implications for architecture of planetary systems, and life and shenanigans…

Nature paper by Cieza et al. (including Casassus, Perez, Cánovas, Hales, Zurlo) can be found here.

Read the ALMA press release

December 13, 2016

ALMA Observes First Protoplanetary Water Snow Line Thanks to Stellar Outburst

A song of Ice and Fire, i.e., outbursting flaring star pushing water snow line far away allowing for it to be observed. First time for water. […]
November 7, 2016

Alumno del Magíster en Astrofísica publica artículo sobre visualización de simulaciones

Matías Gárate, alumno del Instituto de Astrofísica y parte del Núcleo Milenio de Discos Protoplanetarios, desarrolló una metodología para utilizar los datos de simulaciones en un […]
May 17, 2016

Cinturón de cometas alrededor de sistema multiplanetario distante arroja indicios de planetas escondidos o desplazados

(english version below) Un equipo de astrónomos usó el Atacama Large Millimeter/submillimeter Array (ALMA) para producir la primera imagen en alta resolución del cinturón de cometas […]
December 6, 2014

Research Fellowships on Planet Formation

The Disk Nucleus invites applications for two research fellowships based at Universidad de Chile. We seek astronomers with expertise in circumstellar and protoplanetary disks or planet formation, […]