Magoulas, Christine; Springbob, Christopher M; Colless, Matthew; Jones, D Heath; Campbell, Lachlan; Lucey, John; Mould, Jeremy; Jarrett, Thomas H; Merson, A.; Brough, Sarah
We determine the near-infrared Fundamental Plane (FP) for ~10 4 early-type galaxies in the 6-degree Field Galaxy Survey (6dFGS). We fit the distribution of central velocity dispersion, near-infrared surface brightness and half-light radius with a 3D Gaussian model using a maximum-likelihood method. The model provides an excellent empirical fit to the observed FP distribution and the method proves robust and unbiased. Tests using simulations show that it gives superior results to regression...[Show more]
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