Hostname: page-component-78c5997874-s2hrs Total loading time: 0 Render date: 2024-11-10T20:07:54.513Z Has data issue: false hasContentIssue false
  • English
  • Français

Variations in the 24 μm morphologies of nearby galaxies

Published online by Cambridge University Press:  01 July 2007

G. J. Bendo
G. J. Bendo*
Affiliation:
Imperial College, Blackett Laboratory, Prince Consort Road, London SW7 2AZ, UK email: g.bendo@imperial.ac.uk
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

To study the distribution of star formation and dust emission within nearby galaxies, we measured five morphological parameters in the 24 μm wave band for 73 galaxies observed as part of the Spitzer Infrared Nearby Galaxies Survey. The morphological parameters demonstrate strong variations along the Hubble sequence, including statistically significant differences between S0/a-Sab and Sc-Sd galaxies. Early-type spiral galaxies are generally found to be compact, centralized, symmetric sources in the 24 μm band, whereas late-type spiral galaxies are generally found to be extended, asymmetric 24 μm sources. These results suggest that processes that increase the real or apparent sizes of galaxies' bulges also lead to more centralized 24 μm emission.

Keywords

infrared: galaxiesgalaxies: ISMgalaxies: structure
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S245: Formation and Evolution of Galaxy Bulges , July 2007 , pp. 121 - 124
Copyright
Copyright © International Astronomical Union 2008

References

Bendo, G. J., et al. 2002, AJ 123, 3067CrossRefGoogle Scholar
Bendo, G. J., et al. 2007, preprint (astro-ph/07071303)Google Scholar
Braun, R., Walterbos, R. A. M., & Kennicutt, R. C. Jr., 1992, Nature 360, 442CrossRefGoogle Scholar
Calzetti, D., et al. 2005, ApJ 633, 871CrossRefGoogle Scholar
Calzetti, D., et al. 2007, preprint (astro-ph/07053377)Google Scholar
Conselice, C. J. 2003, ApJS 147, 1CrossRefGoogle Scholar
Dale, D. A., Giovanelli, R., Haynes, M. P., Hardy, E., & Campusano, L. E. 2001a, AJ 121, 1886CrossRefGoogle Scholar
Dale, D. A., Helou, G., Contursi, A., Silbermann, N. A., & Kolhatkar, S. 2001b, ApJ 549, 215CrossRefGoogle Scholar
de Vaucouleurs, G., de Vaucouleurs, A., Corwin, H. G., Buta, R. J., Paturel, G., & Fouque, P.(RC3) 1991, Third Reference Catalogue of Bright Galaxies (Berlin: Springer-Verlag)Google Scholar
Gunn, J. E., & Gott, J. R. III, 1972, ApJ 176, 1CrossRefGoogle Scholar
Hodge, P. W. & Kennicutt, R. C. Jr., 1983, ApJ 267, 563CrossRefGoogle Scholar
Kennicutt, R. C. Jr., 1998, ARAA 36, 189CrossRefGoogle Scholar
Kennicutt, R. C. Jr., et al. 2003, PASP 115, 928CrossRefGoogle Scholar
Koopmann, R. A., Haynes, M. P., & Catinella, B. 2006, AJ 131, 716CrossRefGoogle Scholar
Koopmann, R. A. & Kenney, J. D. P. 2004, ApJ 613, 866CrossRefGoogle Scholar
Kormendy, J. & Kennicutt, R. C. Jr., 2004, ARAA 42, 603CrossRefGoogle Scholar
Li, A. & Draine, B. T. 2001, ApJ 554, 778CrossRefGoogle Scholar
Lotz, J. M., Primack, J., & Madau, P. 2004, AJ 128, 163CrossRefGoogle Scholar
Perez-Gonzalez, P. G., et al. 2006, ApJ 648, 987CrossRefGoogle Scholar
Prescott, M. K. M., et al. 2007, preprint (astro-ph/07063501)Google Scholar
Roberts, M. S. & Haynes, M. P. 1994, ARAA 32, 115CrossRefGoogle Scholar
Schweizer, F. 1998, in: Friedli, D., Martinet, L., & Pfenniger, D. (eds.), Galaxies: Interactions and Induced Star Formation (Springer-Verlag: Berlin), p. 105CrossRefGoogle Scholar
Thomas, H. C., Alexander, P., Clemens, M. S., Green, D. A., Dunne, L., & Eales, S. 2004, MNRAS 351, 362CrossRefGoogle Scholar
Young, J. S., et al. 1995, ApJS 98, 219CrossRefGoogle Scholar