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Planetary nebulae as tracers of the kinematic structure of the starburst galaxy IC 10

  • Denise R. Gonçalves (a1) (a2), Ana M. Teodorescu (a3), Alan Alves-Brito (a4), Roberto H. Méndez (a3) and Laura Magrini (a5)...

Abstract

The Local Group dwarf irregular galaxy IC 10 is the nearest starburst galaxy (at 725 kpc) and presents extended and complex HI kinematics. It is believed that IC 10 is still experiencing an intense and very recent burst of star formation, likely triggered by infalling gas from an extended envelope which is counter-rotating with respect to the galaxy proper rotation. In this contribution we summarize our preliminary results (Gonçalves et al. 2011, in prep.) obtained by performing a kinematic analysis of the PN population of IC 10. Our aim is to explore the kinematic connection of its intermediate to old stellar populations with that obtained from HI observations. Some PNe were found at large galactocentric distances and could therefore represent a trace of past tidal interactions.

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References

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Magrini, L., Corradi, R. L. M., Greimel, R., Leisy, P., Lennon, D. J., et al. 2003, A&A, 407, 51
Méndez, R. H., Teodorescu, A. M., Kudritzki, R. P., & Burkert, A. 2009, ApJ, 691, 228
Wilcots, E. M. & Miller, B. W. 1998, AJ, 116, 2363
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Planetary nebulae as tracers of the kinematic structure of the starburst galaxy IC 10

  • Denise R. Gonçalves (a1) (a2), Ana M. Teodorescu (a3), Alan Alves-Brito (a4), Roberto H. Méndez (a3) and Laura Magrini (a5)...

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