The GALEX-VVDS Measurement of the Evolution of the 1500A Luminosity Function
- Arnouts, S
- Schiminovich, D
- Ilbert, O
- Tresse, L
- Milliard, B
- Treyer, M
- Bardelli, S
- Budavari, T
- Wyder, T K
- Zucca, E
- Le, F O
- Martin, C
- Vettolani, G
- Adami, C
- Arnaboldi, M
- Barlow, T A
- Bianchi, L
- Bolzonella, M
- Bottini, D
- Byun, Y I
- Cappi, A
- Charlot, S
- Contini, T
- Donas, J
- Forster, K
- Foucaud, S
- Franzetti, P
- Friedman, P G
- Garilli, B
- Gavignaud, I
- Guzzo, L
- Heckman, T M
- Hoopes, C
- Iovino, A
- Jelinsky, P N
- Le Brun, V
- Lee, Y W
- MacCagni, D
- Madore, B F
- Malina, R
- Marano, B
- Marinoni, C
- McCracken, H J
- Mazure, A
- Meneux, B
- Merighi, R
- Morrissey, P F
- Neff, S
- Paltani, S
- Pell, R
- Picat, J P
- Pollo, A
- Pozzetti, L
- Radovich, M
- Rich, R M
- Scaramella, R
- Scodeggio, M
- Seibert, M
- Siegmund, O
- Small, T
- Szalay, A S
- Welsh, B
- Xu, C K
- Zamorani, G
- Zanichelli, A
DOIAbstract
We present the first measurement of the galaxy luminosity function at 1500A between 0.2<z<1.2 based on GALEX-VVDS observations (1000 spectroscopic redshifts for galaxies with NUV<24.5) and at higher z using existing datasets. Our main results are summarized as follows : (i) luminosity evolution is observed with Delta(Mstar)=-2.0 mag between z=0 and z=1 and Delta(Mstar)=-1.0mag between z=1 and z=3. This confirms that the star formation activity was significantly higher in the past. (ii) the LF slopes vary between -1.2< alpha <-1.65, with a marginally significant hint of increase at higher z. (iii) we split the sample in three restframe (B-I) intervals providing an approximate spectral type classification: Sb-Sd, Sd-Irr and unobscured starbur...
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