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Systematic variation of the stellar initial mass function in early-type galaxies

Author

Listed:
  • Michele Cappellari

    (University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, UK)

  • Richard M. McDermid

    (Gemini Observatory, Northern Operations Centre, 670 North A’ohoku Place, Hilo, Hawaii 96720, USA)

  • Katherine Alatalo

    (Campbell Hall, University of California)

  • Leo Blitz

    (Campbell Hall, University of California)

  • Maxime Bois

    (Observatoire de Paris, LERMA and CNRS, 61 Avenue de l’Observatoire, F-75014 Paris, France)

  • Frédéric Bournaud

    (Laboratoire AIM Paris-Saclay, CEA/IRFU/SAp CNRS Université Paris Diderot, 91191 Gif-sur-Yvette Cedex, France)

  • M. Bureau

    (University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, UK)

  • Alison F. Crocker

    (University of Massachusetts, 710 North Pleasant Street, Amherst, Massachusetts 01003, USA)

  • Roger L. Davies

    (University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, UK)

  • Timothy A. Davis

    (University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, UK
    European Southern Observatory, Karl-Schwarzschild-Strasse 2, 85748 Garching, Germany)

  • P. T. de Zeeuw

    (European Southern Observatory, Karl-Schwarzschild-Strasse 2, 85748 Garching, Germany
    Sterrewacht Leiden, Leiden University, Postbus 9513, 2300 RA Leiden, The Netherlands)

  • Pierre-Alain Duc

    (Laboratoire AIM Paris-Saclay, CEA/IRFU/SAp CNRS Université Paris Diderot, 91191 Gif-sur-Yvette Cedex, France)

  • Eric Emsellem

    (European Southern Observatory, Karl-Schwarzschild-Strasse 2, 85748 Garching, Germany
    Université Lyon 1, Observatoire de Lyon, Centre de Recherche Astrophysique de Lyon and Ecole Normale Supérieure de Lyon, 9 avenue Charles André, F-69230 Saint-Genis Laval, France)

  • Sadegh Khochfar

    (Max-Planck Institut für extraterrestrische Physik, PO Box 1312, D-85478 Garching, Germany)

  • Davor Krajnović

    (European Southern Observatory, Karl-Schwarzschild-Strasse 2, 85748 Garching, Germany)

  • Harald Kuntschner

    (European Southern Observatory, Karl-Schwarzschild-Strasse 2, 85748 Garching, Germany)

  • Pierre-Yves Lablanche

    (European Southern Observatory, Karl-Schwarzschild-Strasse 2, 85748 Garching, Germany
    Université Lyon 1, Observatoire de Lyon, Centre de Recherche Astrophysique de Lyon and Ecole Normale Supérieure de Lyon, 9 avenue Charles André, F-69230 Saint-Genis Laval, France)

  • Raffaella Morganti

    (Netherlands Institute for Radio Astronomy, Postbus 2, 7990 AA Dwingeloo, The Netherlands
    Kapteyn Astronomical Institute, University of Groningen, Postbus 800, 9700 AV Groningen, The Netherlands)

  • Thorsten Naab

    (Max-Planck Institut für Astrophysik, Karl-Schwarzschild-Strasse 1, 85741 Garching, Germany)

  • Tom Oosterloo

    (Netherlands Institute for Radio Astronomy, Postbus 2, 7990 AA Dwingeloo, The Netherlands
    Kapteyn Astronomical Institute, University of Groningen, Postbus 800, 9700 AV Groningen, The Netherlands)

  • Marc Sarzi

    (Centre for Astrophysics Research, University of Hertfordshire, Hatfield AL1 9AB, UK)

  • Nicholas Scott

    (University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, UK
    Centre for Astrophysics & Supercomputing, Swinburne University of Technology, PO Box 218, Hawthorn, Victoria 3122, Australia)

  • Paolo Serra

    (Netherlands Institute for Radio Astronomy, Postbus 2, 7990 AA Dwingeloo, The Netherlands)

  • Anne-Marie Weijmans

    (Dunlap Institute for Astronomy & Astrophysics, University of Toronto, 50 St George Street, Toronto, Ontario M5S 3H4, Canada)

  • Lisa M. Young

    (New Mexico Institute of Mining and Technology)

Abstract

A study of the stellar kinematics of a large sample of early-type galaxies provides evidence that the stellar initial mass function depends on the galaxy’s stellar mass-to-light ratio and thus is strongly dependent on the galaxy’s formation history.

Suggested Citation

  • Michele Cappellari & Richard M. McDermid & Katherine Alatalo & Leo Blitz & Maxime Bois & Frédéric Bournaud & M. Bureau & Alison F. Crocker & Roger L. Davies & Timothy A. Davis & P. T. de Zeeuw & Pierr, 2012. "Systematic variation of the stellar initial mass function in early-type galaxies," Nature, Nature, vol. 484(7395), pages 485-488, April.
    • Handle: RePEc:nat:nature:v:484:y:2012:i:7395:d:10.1038_nature10972
    DOI: 10.1038/nature10972
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