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2MASS and the Tully-Fisher Relation

  • Jessica L. Rosenberg
Part of the Astrophysics and Space Science Library book series (ASSL, volume 230)

Abstract

The major advantage of studying galaxies in the near infrared (NIR), is the minimization of dust extinction. The NIR is the region of the stellar emission spectrum which is least affected by both dust emission and extinction. Dust emission becomes more of a factor at longer wavelengths while dust extinction is more significant at shorter ones. The other important advantage of a NIR study is that it probes the bulk of the stellar mass in the galaxies. Since Tully-Fisher (T-F) is a relationship between a galaxy’s total stellar content and its rotation speed, minimizing the biases in the measurement of the bulk of the stellar emission provides a significant advantage.

Keywords

Axis Ratio Dust Emission Spiral Galaxy Surface Brightness Galactic Latitude 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media Dordrecht 1998

Authors and Affiliations

  • Jessica L. Rosenberg
    • 1
  1. 1.Department of Physics and AstronomyUMassUSA

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