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Young Star Clusters in the Small Magellanic Cloud: Impact of Local and Global Conditions on Star Formation

Published online by Cambridge University Press:  01 June 2008

Elena Sabbi ,
Linda J. Smith ,
Lynn R. Carlson ,
Antonella Nota ,
Monca Tosi ,
Michele Cignoni ,
Jay S. Gallagher III ,
Marco Sirianni  and
Margaret Meixner
Elena Sabbi
Affiliation:
Space Telescope Science Institute3700 San Martin Drive, Baltimore, MD, 21218, USA email: sabbi@stsci.edu
Linda J. Smith
Affiliation:
Space Telescope Science Institute3700 San Martin Drive, Baltimore, MD, 21218, USA email: sabbi@stsci.edu University College LondonLondon, UK
Lynn R. Carlson
Affiliation:
Johns Hopkins UniversityBaltimore, MD, USA
Antonella Nota
Affiliation:
Space Telescope Science Institute3700 San Martin Drive, Baltimore, MD, 21218, USA email: sabbi@stsci.edu European Space Agency, Research and Scientific Support DepartmentBaltimore, MD, USA
Monca Tosi
Affiliation:
INAF-Osservatorio Astronomico di BolognaBologna, Italy
Michele Cignoni
Affiliation:
INAF-Osservatorio Astronomico di BolognaBologna, Italy
Jay S. Gallagher III
Affiliation:
University of WisconsinMadison, WI, USA
Marco Sirianni
Affiliation:
Space Telescope Science Institute3700 San Martin Drive, Baltimore, MD, 21218, USA email: sabbi@stsci.edu European Space Agency, Research and Scientific Support DepartmentBaltimore, MD, USA
Margaret Meixner
Affiliation:
Space Telescope Science Institute3700 San Martin Drive, Baltimore, MD, 21218, USA email: sabbi@stsci.edu
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Abstract

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We compared deep images acquired with the Advanced Camera for Surveys on board of the Hubble Space Telescope with mid-IR Spitzer Space Telescope images and University College London Echelle Spectrograph spectra of NGC 346 and NGC 602, two of the youngest star clusters in the Small Magellanic Cloud. Our multi-wavelength approach allowed us to infer very different origins for the clusters: while NGC 346 is likely the result of the hierarchical collapse of a giant molecular cloud, NGC 602 is probably the result of the collision and consequent interaction of two H I shells of gas.

Keywords

Magellanic Cloudsgalaxies: star clustersstars: formationstars: mass functionstars: pre–main-sequence
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Issue S255: Low-Metallicity Star Formation: From the First Stars to Dwarf Galaxies , June 2008 , pp. 157 - 161
Copyright
Copyright © International Astronomical Union 2008

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