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Comparison of NIR and Hα emission from the HII regions of M100

Published online by Cambridge University Press:  21 March 2013

S. J. Chan
Affiliation:
43 Tamar Way, Didcot, OX11 7QH, United Kingdom. email: [email protected]
J. E. Beckman
Affiliation:
Instituto de Astrofisica de Canarias38205 La Laguna, Spain. email: [email protected] CSIC, 28006 Madrid, Spain Department of Astrophysics, University of La Laguna, E-38200 La Laguna, Tenerife, Spain
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Abstract

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We measure the flux values in the 4 Spitzer-IRAC bands, of a sample of 78 isolated luminous HII regions in the grand design galaxy M100. We estimate the near-IR luminosities and compare them with the Hα-luminosities from the Knapen HII-region catalogue. We find a strong, and expected positive correlation between the total IR luminosity and the Hα luminosity, but no significant correlation between the luminosity and the IR temperature of the regions.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2013

References

Chan, S. J. & Beckman, J. E. 2012, A&A, in preparationGoogle Scholar
Knapen, J. H., Stedman, S., Bramich, D. M., Folkes, S. L., & Bradley, T. R. 2004, A&A, 426, 1136Google Scholar
Knapen, J. H. 1998, MNRAS, 426, 1136Google Scholar
Spitzer Science Center 2006, Infrared Array Camera Data HandbookGoogle Scholar