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

Published online by Cambridge University Press:  30 August 2012

Denise R. Gonçalves ,
Ana M. Teodorescu ,
Alan Alves-Brito ,
Roberto H. Méndez  and
Laura Magrini
Denise R. Gonçalves
Affiliation:
UFRJ - Observatório do Valongo, Ladeira Pedro Antonio 43, 20080-090 Rio de Janeiro, Brazil. Email: denise@astro.ufrj.br Department of Physics and Astronomy, University College London, Gower Street, WC1E 6BT London, UK
Ana M. Teodorescu
Affiliation:
Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, HI 96822 Honolulu, USA. Email: mendez@ifa.hawaii.edu; ana@ifa.hawaii.edu
Alan Alves-Brito
Affiliation:
PUC, Departamento de Astronomia y Astrofísica, Av. Vicuña Mackenna 4860, 782-0436 Santiago, Chile. Email: abrito@astro.puc.cl
Roberto H. Méndez
Affiliation:
Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, HI 96822 Honolulu, USA. Email: mendez@ifa.hawaii.edu; ana@ifa.hawaii.edu
Laura Magrini
Affiliation:
INAF - Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, I-50125 Firenze, Italy. Email: laura@arcetri.astro.it
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Abstract

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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.

Keywords

galaxies: dwarfgalaxies: kinematics and dynamicsgalaxies: individual (IC 10)Local Groupplanetary nebulae: general
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S283: Planetary Nebulae: An Eye to the Future , July 2011 , pp. 368 - 369
Copyright
Copyright © International Astronomical Union 2012

References

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Méndez, R. H., Teodorescu, A. M., Kudritzki, R. P., & Burkert, A. 2009, ApJ, 691, 228 CrossRefGoogle Scholar
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