The evolution of disk galaxies in the goods-south field

Number densities and size distribution

S. Ravindranath, H. C. Ferguson, C. Conselice, M. Giavalisco, M. Dickinson, E. Chatzichristou, D. De Mello, S. M. Fall, J. P. Gardner, N. A. Grogin, A. Hornschemeier, S. Jogee, A. Koekemoer, C. Kretchmer, M. Livio, B. Mobasher, Rachel Somerville

Research output: Contribution to journalArticle

130 Citations (Scopus)

Abstract

We examine the evolution of the sizes and number densities of disk galaxies using the high-resolution images obtained by the Great Observatories Origins Deep Survey (GOODS) with the Advanced Camera for Surveys on the Hubble Space Telescope. The multiwavelength images are used to classify galaxies based on their rest-frame B-band morphologies out to redshift z ∼ 1.25. In order to minimize the effect of selection biases, we confine our analysis to galaxies that occupy the region of the magnitude-size plane where the survey is ∼90% complete at all redshifts. The observed size distribution is consistent with a lognormal distribution as seen for the disk galaxies in the local universe and does not show any significant evolution over the redshift range 0.25 ≤ z ≤ 1.25. We find that the number densities of disk galaxies remains fairly constant over this redshift range, although a modest evolution by a factor of 4 may be possible within the 2 σ uncertainties.

Original languageEnglish (US)
JournalAstrophysical Journal
Volume604
Issue number1 II
DOIs
StatePublished - Mar 20 2004

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disk galaxies
density distribution
galaxies
image resolution
Hubble Space Telescope
observatories
observatory
universe
cameras
high resolution
goods

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Ravindranath, S., Ferguson, H. C., Conselice, C., Giavalisco, M., Dickinson, M., Chatzichristou, E., ... Somerville, R. (2004). The evolution of disk galaxies in the goods-south field: Number densities and size distribution. Astrophysical Journal, 604(1 II). https://doi.org/10.1086/382952
Ravindranath, S. ; Ferguson, H. C. ; Conselice, C. ; Giavalisco, M. ; Dickinson, M. ; Chatzichristou, E. ; De Mello, D. ; Fall, S. M. ; Gardner, J. P. ; Grogin, N. A. ; Hornschemeier, A. ; Jogee, S. ; Koekemoer, A. ; Kretchmer, C. ; Livio, M. ; Mobasher, B. ; Somerville, Rachel. / The evolution of disk galaxies in the goods-south field : Number densities and size distribution. In: Astrophysical Journal. 2004 ; Vol. 604, No. 1 II.
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Ravindranath, S, Ferguson, HC, Conselice, C, Giavalisco, M, Dickinson, M, Chatzichristou, E, De Mello, D, Fall, SM, Gardner, JP, Grogin, NA, Hornschemeier, A, Jogee, S, Koekemoer, A, Kretchmer, C, Livio, M, Mobasher, B & Somerville, R 2004, 'The evolution of disk galaxies in the goods-south field: Number densities and size distribution', Astrophysical Journal, vol. 604, no. 1 II. https://doi.org/10.1086/382952

The evolution of disk galaxies in the goods-south field : Number densities and size distribution. / Ravindranath, S.; Ferguson, H. C.; Conselice, C.; Giavalisco, M.; Dickinson, M.; Chatzichristou, E.; De Mello, D.; Fall, S. M.; Gardner, J. P.; Grogin, N. A.; Hornschemeier, A.; Jogee, S.; Koekemoer, A.; Kretchmer, C.; Livio, M.; Mobasher, B.; Somerville, Rachel.

In: Astrophysical Journal, Vol. 604, No. 1 II, 20.03.2004.

Research output: Contribution to journalArticle

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AU - Dickinson, M.

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AU - De Mello, D.

AU - Fall, S. M.

AU - Gardner, J. P.

AU - Grogin, N. A.

AU - Hornschemeier, A.

AU - Jogee, S.

AU - Koekemoer, A.

AU - Kretchmer, C.

AU - Livio, M.

AU - Mobasher, B.

AU - Somerville, Rachel

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Ravindranath S, Ferguson HC, Conselice C, Giavalisco M, Dickinson M, Chatzichristou E et al. The evolution of disk galaxies in the goods-south field: Number densities and size distribution. Astrophysical Journal. 2004 Mar 20;604(1 II). https://doi.org/10.1086/382952