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Stellar Populations in the Outskirts of M33

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Environment and the Formation of Galaxies: 30 years later

Part of the book series: Astrophysics and Space Science Proceedings ((ASSSP))

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Abstract

We present V and I photometry of seven fields in the outskirts of M33 to search for stellar structures in correspondence of neutral hydrogen (Hi) clouds recently discovered in a 21-cm survey of this galaxy [2]. We analyse the stellar population out to 2 ∘  from the centre of M33 by means of V, I colour magnitude diagrams reaching the red clump (RC). We detect intermediate-age (1–10 Gyr) stars out to a deprojected radius of 30 kpc ( ∼ 20 scale lengths), but we do not find evidence for a clear correlation between the Hi complexes and the stellar substructures.

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References

  1. L. Girardi et al., A&A 391, 195 (2002)

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  2. M. Grossi et al., A&A 487, 161 (2008)

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Author information

Authors and Affiliations

  1. CAAUL, Observatório Astronómico de Lisboa, Universidade de Lisboa, Lisbon, Portugal

    M. Grossi

  2. Department of Astronomical Science, Graduate University of Advanced Studies, Tokyo, Japan

    N. Hwang, S. Okamoto & N. Arimoto

  3. INAF-Osservatorio Astrofisico di Arcetri, Florence, Italy

    E. Corbelli & C. Giovanardi

Authors
  1. M. Grossi
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  2. N. Hwang
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  3. E. Corbelli
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  4. C. Giovanardi
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  5. S. Okamoto
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  6. N. Arimoto
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Editors and Affiliations

  1. , Mullard Space Science Laboratory, University College London, Holmbury St Mary, Dorking, RH5 6NT, Surrey, United Kingdom

    Ignacio Ferreras

  2. Astronomisches Rechen-Institut, Moenchhofstrasse 12 - 14, Heidelberg, 69120, Germany

    Anna Pasquali

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© 2011 Springer-Verlag Berlin Heidelberg

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Grossi, M., Hwang, N., Corbelli, E., Giovanardi, C., Okamoto, S., Arimoto, N. (2011). Stellar Populations in the Outskirts of M33. In: Ferreras, I., Pasquali, A. (eds) Environment and the Formation of Galaxies: 30 years later. Astrophysics and Space Science Proceedings. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-20285-8_22

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  • DOI: https://doi.org/10.1007/978-3-642-20285-8_22

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-20284-1

  • Online ISBN: 978-3-642-20285-8

  • eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)

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