Espectroscopía 3D: Resolviendo la compleja estructura cinemática de la galaxia Haro15

V.FIRPO, G. BOSCH, G. HÄGELE, R. DÍAZ.

Mar del Plata

Congreso; 55a Reunión Anual de la Asociación Argentina de Astronomía; 2012

Asociación Argentina de Astronomía

The most intense star-forming regions in the galaxy Haro 15 show a peculiar kinematic behavior in our high resolution spectra which provided information regarding the motion of the individual knots in the galaxy potential. We focus our study in their kinematic structure with the purpose of distinguishing the presence of different components which could be contributing to the observed widths in the global emission profile. Using high quality Integral Field Unit (IFU) data from GMOS-South of Gemini Telescopes, we mapped the velocity fields and flux distribution from fits to the different emission lines. With the high spatial resolution IFU data we are able to explain the double peak profile seen in one of the knot of the Complex A as being due to the presence of a blueshifted outflow component. The external bright star-forming region, within Complex B, is located next to a giant shell structure, suggesting that the starburst phenomenon was triggered by an ancient supernova burst.