The ultraviolet galaxy luminosity function from galex data: Color-dependent evolution at low redshift

Marie Treyer; Ted K. Wyder; David Schiminovich; Stéphane Arnouts; Tamás Budavari; Bruno Milliard; Tom A. Barlow; Luciana Bianchi; Yong Ik Byun; José Donas; Karl Forster; Peter G. Friedman; Timothy M. Heckman; Patrick N. Jelinsky; Young Wook Lee; Barry F. Madore; Roger F. Malina; D. Christopher Martin; Patrick Morrissey; Susan G. Neff; R. Michael Rich; Oswald H.W. Siegmund; Todd Small; Alex S. Szalay; Barry Y. Welsh

doi:10.1086/425302

The ultraviolet galaxy luminosity function from galex data: Color-dependent evolution at low redshift

Marie Treyer, Ted K. Wyder, David Schiminovich, Stéphane Arnouts, Tamás Budavari, Bruno Milliard, Tom A. Barlow, Luciana Bianchi, Yong Ik Byun, José Donas, Karl Forster, Peter G. Friedman, Timothy M. Heckman, Patrick N. Jelinsky, Young Wook Lee, Barry F. Madore, Roger F. Malina, D. Christopher Martin, Patrick Morrissey, Susan G. NeffR. Michael Rich, Oswald H.W. Siegmund, Todd Small, Alex S. Szalay, Barry Y. Welsh

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Abstract

We present measurements of the far-UV (FUV; 1530 Å) and near-UV (NUV; 2310 Å) galaxy luminosity functions (LFs) at low redshift (z ≤ 0.2) from Galaxy Evolution Explorer observations matched to the Two-Degree Field (2dF) Galaxy Redshift Survey. We split our FUV and NUV samples into two UV - b_J color bins and two redshift bins. As observed at optical wavelengths, the local LF of the bluest galaxies tend to have steeper faint-end slopes and fainter characteristic magnitudes M* than the reddest subsamples. We find evidence for color-dependent evolution at very low redshift in both bands, with bright blue galaxies becoming dominant in the highest redshift bin. The evolution of the total LF is consistent with an ∼0.3 mag brightening between z ∼ 0 and 0.13, in agreement with the first analysis of deeper GALEX fields probing adjacent and higher redshifts.

Original language	English
Pages (from-to)	L19-L22
Journal	Astrophysical Journal
Volume	619
Issue number	1 II
DOIs	https://doi.org/10.1086/425302
Publication status	Published - 2005 Jan 20

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/425302

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Treyer, M., Wyder, T. K., Schiminovich, D., Arnouts, S., Budavari, T., Milliard, B., Barlow, T. A., Bianchi, L., Byun, Y. I., Donas, J., Forster, K., Friedman, P. G., Heckman, T. M., Jelinsky, P. N., Lee, Y. W., Madore, B. F., Malina, R. F., Martin, D. C., Morrissey, P., ... Welsh, B. Y. (2005). The ultraviolet galaxy luminosity function from galex data: Color-dependent evolution at low redshift. Astrophysical Journal, 619(1 II), L19-L22. https://doi.org/10.1086/425302

@article{648af9568f074b2bae2df3a2d2545db7,

title = "The ultraviolet galaxy luminosity function from galex data: Color-dependent evolution at low redshift",

abstract = "We present measurements of the far-UV (FUV; 1530 {\AA}) and near-UV (NUV; 2310 {\AA}) galaxy luminosity functions (LFs) at low redshift (z ≤ 0.2) from Galaxy Evolution Explorer observations matched to the Two-Degree Field (2dF) Galaxy Redshift Survey. We split our FUV and NUV samples into two UV - bJ color bins and two redshift bins. As observed at optical wavelengths, the local LF of the bluest galaxies tend to have steeper faint-end slopes and fainter characteristic magnitudes M* than the reddest subsamples. We find evidence for color-dependent evolution at very low redshift in both bands, with bright blue galaxies becoming dominant in the highest redshift bin. The evolution of the total LF is consistent with an ∼0.3 mag brightening between z ∼ 0 and 0.13, in agreement with the first analysis of deeper GALEX fields probing adjacent and higher redshifts.",

author = "Marie Treyer and Wyder, {Ted K.} and David Schiminovich and St{\'e}phane Arnouts and Tam{\'a}s Budavari and Bruno Milliard and Barlow, {Tom A.} and Luciana Bianchi and Byun, {Yong Ik} and Jos{\'e} Donas and Karl Forster and Friedman, {Peter G.} and Heckman, {Timothy M.} and Jelinsky, {Patrick N.} and Lee, {Young Wook} and Madore, {Barry F.} and Malina, {Roger F.} and Martin, {D. Christopher} and Patrick Morrissey and Neff, {Susan G.} and Rich, {R. Michael} and Siegmund, {Oswald H.W.} and Todd Small and Szalay, {Alex S.} and Welsh, {Barry Y.}",

year = "2005",

month = jan,

day = "20",

doi = "10.1086/425302",

language = "English",

volume = "619",

pages = "L19--L22",

journal = "Astrophysical Journal",

issn = "0004-637X",

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Treyer, M, Wyder, TK, Schiminovich, D, Arnouts, S, Budavari, T, Milliard, B, Barlow, TA, Bianchi, L, Byun, YI, Donas, J, Forster, K, Friedman, PG, Heckman, TM, Jelinsky, PN, Lee, YW, Madore, BF, Malina, RF, Martin, DC, Morrissey, P, Neff, SG, Rich, RM, Siegmund, OHW, Small, T, Szalay, AS & Welsh, BY 2005, 'The ultraviolet galaxy luminosity function from galex data: Color-dependent evolution at low redshift', Astrophysical Journal, vol. 619, no. 1 II, pp. L19-L22. https://doi.org/10.1086/425302

TY - JOUR

T1 - The ultraviolet galaxy luminosity function from galex data

T2 - Color-dependent evolution at low redshift

AU - Treyer, Marie

AU - Wyder, Ted K.

AU - Schiminovich, David

AU - Arnouts, Stéphane

AU - Budavari, Tamás

AU - Milliard, Bruno

AU - Barlow, Tom A.

AU - Bianchi, Luciana

AU - Byun, Yong Ik

AU - Donas, José

AU - Forster, Karl

AU - Friedman, Peter G.

AU - Heckman, Timothy M.

AU - Jelinsky, Patrick N.

AU - Lee, Young Wook

AU - Madore, Barry F.

AU - Malina, Roger F.

AU - Martin, D. Christopher

AU - Morrissey, Patrick

AU - Neff, Susan G.

AU - Rich, R. Michael

AU - Siegmund, Oswald H.W.

AU - Small, Todd

AU - Szalay, Alex S.

AU - Welsh, Barry Y.

PY - 2005/1/20

Y1 - 2005/1/20

N2 - We present measurements of the far-UV (FUV; 1530 Å) and near-UV (NUV; 2310 Å) galaxy luminosity functions (LFs) at low redshift (z ≤ 0.2) from Galaxy Evolution Explorer observations matched to the Two-Degree Field (2dF) Galaxy Redshift Survey. We split our FUV and NUV samples into two UV - bJ color bins and two redshift bins. As observed at optical wavelengths, the local LF of the bluest galaxies tend to have steeper faint-end slopes and fainter characteristic magnitudes M* than the reddest subsamples. We find evidence for color-dependent evolution at very low redshift in both bands, with bright blue galaxies becoming dominant in the highest redshift bin. The evolution of the total LF is consistent with an ∼0.3 mag brightening between z ∼ 0 and 0.13, in agreement with the first analysis of deeper GALEX fields probing adjacent and higher redshifts.

AB - We present measurements of the far-UV (FUV; 1530 Å) and near-UV (NUV; 2310 Å) galaxy luminosity functions (LFs) at low redshift (z ≤ 0.2) from Galaxy Evolution Explorer observations matched to the Two-Degree Field (2dF) Galaxy Redshift Survey. We split our FUV and NUV samples into two UV - bJ color bins and two redshift bins. As observed at optical wavelengths, the local LF of the bluest galaxies tend to have steeper faint-end slopes and fainter characteristic magnitudes M* than the reddest subsamples. We find evidence for color-dependent evolution at very low redshift in both bands, with bright blue galaxies becoming dominant in the highest redshift bin. The evolution of the total LF is consistent with an ∼0.3 mag brightening between z ∼ 0 and 0.13, in agreement with the first analysis of deeper GALEX fields probing adjacent and higher redshifts.

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U2 - 10.1086/425302

DO - 10.1086/425302

M3 - Article

AN - SCOPUS:20044372708

SN - 0004-637X

VL - 619

SP - L19-L22

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1 II

ER -

The ultraviolet galaxy luminosity function from galex data: Color-dependent evolution at low redshift

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