Poster abstract details

PN as tracers of the kinematic structure of the starburst galaxy IC10
Denise R. Gonçalves, Alan Alves-Brito, Roberto H. Méndez, Ana M. Teodorescu and Laura Magrini

Abstract

We present radial velocities of about 30 emission-line nebulae (~20 of
them being known PNe) in the nearest (0.8Mpc) starburst galaxy IC10 by
taking advantage of the deep
spectroscopic capabilities provided by FOCAS on the 8.2m Subaru telescope.
The slitless spectroscopy used in this project is a known efficient and
effective way of discovering new PNe and exploring the kinematics of
galaxies.

In this contribution we discuss the kinematic pattern of IC10 using PNe
out to ~12 arcmin from the galaxy centre. The results are key to
understand the dynamics of the underlying stellar population of IC10 that
could represent the trace of past tidal interactions in the Local Group.
Furthermore, this study might reveal the possible connection of PNe with
the HI envelope located around IC10, thus ruling out or confirming the
existence of a stellar population coincident with the extended gas, and
enlightening its formation and evolutionary history.