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Multi-Color Surface Photometry of Nearby Galaxies

Published online by Cambridge University Press:  25 May 2016

T. Ichikawa ,
N. Itoh  and
K. Yanagisawa
T. Ichikawa
Affiliation:
Kiso Observatory, The University of Tokyo
N. Itoh
Affiliation:
Department of Astronomy, The University of Tokyo
K. Yanagisawa
Affiliation:
Department of Astronomy, The University of Tokyo

Extract

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Near-infrared (NIR) emission in galaxies is mainly radiated by old population low temperature stars, which construct the basic stellar structure and keep the trails of past galaxy evolution. On the other hand, optical observations show recent star formation activity, especially in spiral galaxies. Therefore multi-color observations from optical to near-infrared wavelengths are very important to understand the past and recent star-formation history. Nearby large galaxies are well studied not only in optical but also in mid- and far-infrared by IRAS, CO and HI radio observations. However, the study in the near-infrared is still limited because large format arrays are not common. Here we show a wide-field, near-infrared imaging of nearby elliptical and spiral galaxies and discuss their star-formation history.

Type
Part 5. Extra-Galactic Astronomy
Information
Symposium - International Astronomical Union , Volume 179: New Horizons from Multi-Wavelength Sky Surveys , 1998 , pp. 285 - 286
Copyright
Copyright © Kluwer 1998 

References

Ichikawa, T., Yanagisawa, K. and Itoh, N., 1996, SPIE 2744, 104.Google Scholar
Yanagisawa, K., Ichikawa, T. and Itoh, N., 1996, SPIE 2744, 92.Google Scholar
Yoshii, Y. and Takahara, F. 1988, Astrophys. J. 326, 1.Google Scholar