S^4^MC project: 6 star forming regions PAHs Virtual Observatory Resource

Authors
  1. Sandstrom K.M.
  2. Bolatto A.D.
  3. Bot C.
  4. Draine B.T.
  5. Ingalls J.G.,Israel F.P.
  6. Jackson J.M.
  7. Leroy A.K.
  8. Li A.
  9. Rubio M.
  10. Simon J.D.,Smith J.D.T.
  11. Stanimirovic S.Z.
  12. Tielens A.G.G.M.
  13. van Loon J.T.
  14. Published by
    CDS
Abstract

We present results of mid-infrared spectroscopic mapping observations of six star-forming regions in the Small Magellanic Cloud (SMC) from the Spitzer Spectroscopic Survey of the SMC (S^4^MC). We detect the mid-IR emission from polycyclic aromatic hydrocarbons (PAHs) in all of the mapped regions, greatly increasing the range of environments where PAHs have been spectroscopically detected in the SMC. We investigate the variations of the mid-IR bands in each region and compare our results to studies of the PAH bands in the SINGS sample and in a sample of low-metallicity starburst galaxies. PAH emission in the SMC is characterized by low ratios of the 6-9um features relative to the 11.3um feature and weak 8.6 and 17.0um features. Interpreting these band ratios in the light of laboratory and theoretical studies, we find that PAHs in the SMC tend to be smaller and less ionized than those in higher metallicity galaxies.

Keywords
  1. magellanic-clouds
  2. interstellar-medium
  3. infrared-astronomy
  4. spectroscopy
  5. h-ii-regions
Bibliographic source Bibcode
2012ApJ...744...20S
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/744/20
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJ/744/20
Document Object Identifer DOI
doi:10.26093/cds/vizier.17440020

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http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/744/20
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History

2013-08-01T12:59:08Z
Resource record created
2013-08-01T12:59:08Z
Created
2017-09-29T09:03:54Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr