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Near-IR and Optical Observations of 86 Spirals

How About Freeman’s Law in the Near-IR?

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Infrared Astronomy with Arrays

Part of the book series: Astrophysics and Space Science Library ((ASSL,volume 190))

Abstract

We have obtained surface Djiotometry for a sample of 86 face on spiral galaxies in the B, V, R, I, H and K bands. This statistically complete diameter limited sample can be used to represent a volume limited sample. Therefore we can examine the number frequency per volume of these galaxies with respect to their parameters. We are particularly interested in the bivariate distribution of the central surface brightness and scalelength. The most prominent conclusions are: 1) There is a weak Freeman law, which depends on morphological type, but not on wavelength. 2) All spirals become bluer with increasing radius. 3) Early type spirals have an on the average old population of stars, late type spirals have an on the average young population.

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© 1994 Springer Science+Business Media Dordrecht

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De Jong, R.S., Van Der Kruit, P.C. (1994). Near-IR and Optical Observations of 86 Spirals. In: McLean, I.S. (eds) Infrared Astronomy with Arrays. Astrophysics and Space Science Library, vol 190. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1070-9_35

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  • DOI: https://doi.org/10.1007/978-94-011-1070-9_35

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-4466-0

  • Online ISBN: 978-94-011-1070-9

  • eBook Packages: Springer Book Archive

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