Modelando SN 2016gkg, la supernova argentina

ORELLANA, MARIANA; BERSTEN, MELINA; FOLATELLI, GASTÓN; GARCÍA, FEDERICO; BENVENUTO, OMAR; BUSO, VÍCTOR; SÁNCHEZ, JOSÉ LUIS

Congreso; 60 Reunión de la Asociación Argentina de Astronomía; 2017

Víctor Buso, an amateur astronomer from Rosario, discovered what would be called SN 2016gkg in galaxy NGC 613, recording in unique form photometric data of the arrival of the shockwave to the surface of a star when it was exploding as a supernova (SN). After the discovery, intensive campaigns were carried out to monitor it, which allowed classify it as Type IIb. In our case, we have photometric and spectroscopic data that can be interpreted differently than the one proposed by other authors, and are consistent with the pre-explosion images of the Hubble space telescope. We establish comparisons with SN 2011dh, a similar SN that has been well studied in the context of those originated in interacting binary systems, and present an hydrodynamic model that can account for the unique change of brightness of SN 2016gkg in different phases.