Early-type Galaxies in the Hubble Deep Field. The -r_e relation and the lack of large galaxies at high redshift

G. Fasano; S. Cristiani; S. Arnouts; M. Filippi

doi:10.1086/300280

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arXiv · astro-ph/9801078

Early-type Galaxies in the Hubble Deep Field. The -r_e relation and the lack of large galaxies at high redshift

G. Fasano·S. Cristiani·S. Arnouts·M. Filippi

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Abstract

We present the results of the detailed surface photometry of a sample of early-type galaxies in the Hubble Deep Field. Effective radii, surface brightnesses and total V_606 magnitudes have been obtained, as well as U_300, B_450, I_814, J, H and K colors, which are compared with the predictions of chemical-spectrophotometric models of population synthesis. Spectroscopic redshifts are available for 23 objects. For other 25 photometric redshifts are given. In the -r_e plane the early-type galaxies of the HDF, once the appropriate K+E corrections are applied, turn out to follow the `rest frame' Kormendy relation. This evidence, linked to the dynamical information gathered by Steidel et al.(1996), indicates that these galaxies, even at z~2-3, lie in the Fundamental Plane, in a virial equilibrium condition. At the same redshifts a statistically significant lack of large galaxies [i.e. with Log r_e(kpc) > 0.2] is observed.

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G. Fasano, S. Cristiani, S. Arnouts, M. Filippi. 1998-01-10. Early-type Galaxies in the Hubble Deep Field. The -r_e relation and the lack of large galaxies at high redshift. https://doi.org/10.1086/300280

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