The clustering of ultraviolet-selected galaxies at

Free access article

Issue		A&A Volume 424, Number 2, September III 2004


Page(s)		L9 - L12
Section		Letters
DOI		http://dx.doi.org/10.1051/0004-6361:200400036

A&A 424, L9-L12 (2004)
DOI: 10.1051/0004-6361:200400036

Letter

The clustering of ultraviolet-selected galaxies at $\textit{z} \approx \mathsf{0.1}$

S. Heinis¹, M. Treyer¹, S. Arnouts¹, B. Milliard¹, J. Donas¹, R. Gal², D. C. Martin³ and M. Viton¹

¹ Laboratoire d'Astrophysique de Marseille, BP 8, Traverse du Siphon, 13376 Marseille Cedex 12, France
e-mail: Sebastien.Heinis@oamp.fr
² UC Davis, Department of Physics, One Shields Ave., Davis, CA 95616, USA
³ California Institute of Technology, MC 405-47, 1200 East California Boulevard, Pasadena, CA 91125, USA

(Received 4 February 2004 / Accepted 14 July 2004)

Abstract
We present the first angular clustering measurement of ultraviolet-selected galaxies at low redshift ( $z \approx 0.1$ ) using data from the FOCA survey. We measure the galaxy autocorrelation function $\omega(\theta)$ from three separate fields with $m_{\rm UV} <20.25$ (AB). Assuming $\omega(\theta) = A_\omega \theta^{-\delta}$ , we obtain $A_\omega = 2.9^{+1.9}_{-1.2} \times 10^{-2}$ and $\delta=0.53^{+0.23}_{-0.26}$ , as a best fit to the data, which yields a correlation length r₀ = 3.2^+0.8_-2.3 h^-1 Mpc. This estimate is formally lower than those obtained from optically selected $L_\star$ galaxy samples, although the difference is within errors.

Key words: ultraviolet: galaxies -- cosmology: large-scale structure of Universe

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