UV to IR SEDs of UV-selected galaxies in the elais fields

Evolution of dust attenuation and star formation activity from z = 0.7 to 0.2

J. Iglesias-Páramo, V. Buat, J. Hernández-Fernández, C. K. Xu, D. Burgarella, T. T. Takeuchi, A. Boselli, D. Shupe, M. Rowan-Robinson, T. Babbedge, T. Conrow, F. Fang, D. Farrah, E. González-Solares, C. Lonsdale, G. Smith, J. Surace, T. A. Barlow, K. Forster, P. G. Friedman & 17 others D. C. Martin, P. Morrissey, S. G. Neef, D. Schiminovich, M. Seibert, T. Small, T. K. Wyder, L. Bianchi, J. Donas, T. M. Heckman, Young-Wook Lee, B. F. Madore, B. Milliard, R. M. Rich, A. S. Szalay, B. Y. Welsh, Sukyoung Yi

Research output: Contribution to journalArticle

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Abstract

We study the ultraviolet to far-infrared (hereafter UV-to-IR) SEDs of a sample of intermediate-redshift (0.2 < z < 0.7) UV-selected galaxies from the ELAIS Nl and ELAIS N2 fields by fitting a multi-wavelength data set to a library of GRASIL templates. Star formation related properties of the galaxies are derived from the library of models by using Bayesian statistics. We find a decreasing presence of galaxies with low attenuation and low total luminosity as redshift decreases, which does not hold for high total luminosity galaxies. In addition, the dust attenuation of lowmass galaxies increases as redshift decreases, and this trend seems to disappear for galaxies with M* > 1011 M⊙. This result is consistent with a mass-dependent evolution of the dust-to-gas ratio, which could be driven by a mass-dependent efficiency of star formation in star-forming galaxies. The specific star formation rates (SSFR) decrease with increasing stellar mass at all redshifts, and for a given stellar mass the SSFR decreases with decreasing redshift. The differences in the slope of the M*-SSFR relation found between this work and others at similar redshift could be explained by the adopted selection criteria of the samples, which for a UV-selected sample, favors blue, star-forming galaxies.

Original languageEnglish
Pages (from-to)279-294
Number of pages16
JournalAstrophysical Journal
Volume670
Issue number1
DOIs
Publication statusPublished - 2007 Nov 20

Fingerprint

star formation rate
star formation
dust
attenuation
galaxies
stellar mass
blue stars
slopes
stars
gases
gas
rate

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Iglesias-Páramo, J. ; Buat, V. ; Hernández-Fernández, J. ; Xu, C. K. ; Burgarella, D. ; Takeuchi, T. T. ; Boselli, A. ; Shupe, D. ; Rowan-Robinson, M. ; Babbedge, T. ; Conrow, T. ; Fang, F. ; Farrah, D. ; González-Solares, E. ; Lonsdale, C. ; Smith, G. ; Surace, J. ; Barlow, T. A. ; Forster, K. ; Friedman, P. G. ; Martin, D. C. ; Morrissey, P. ; Neef, S. G. ; Schiminovich, D. ; Seibert, M. ; Small, T. ; Wyder, T. K. ; Bianchi, L. ; Donas, J. ; Heckman, T. M. ; Lee, Young-Wook ; Madore, B. F. ; Milliard, B. ; Rich, R. M. ; Szalay, A. S. ; Welsh, B. Y. ; Yi, Sukyoung. / UV to IR SEDs of UV-selected galaxies in the elais fields : Evolution of dust attenuation and star formation activity from z = 0.7 to 0.2. In: Astrophysical Journal. 2007 ; Vol. 670, No. 1. pp. 279-294.
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abstract = "We study the ultraviolet to far-infrared (hereafter UV-to-IR) SEDs of a sample of intermediate-redshift (0.2 < z < 0.7) UV-selected galaxies from the ELAIS Nl and ELAIS N2 fields by fitting a multi-wavelength data set to a library of GRASIL templates. Star formation related properties of the galaxies are derived from the library of models by using Bayesian statistics. We find a decreasing presence of galaxies with low attenuation and low total luminosity as redshift decreases, which does not hold for high total luminosity galaxies. In addition, the dust attenuation of lowmass galaxies increases as redshift decreases, and this trend seems to disappear for galaxies with M* > 1011 M⊙. This result is consistent with a mass-dependent evolution of the dust-to-gas ratio, which could be driven by a mass-dependent efficiency of star formation in star-forming galaxies. The specific star formation rates (SSFR) decrease with increasing stellar mass at all redshifts, and for a given stellar mass the SSFR decreases with decreasing redshift. The differences in the slope of the M*-SSFR relation found between this work and others at similar redshift could be explained by the adopted selection criteria of the samples, which for a UV-selected sample, favors blue, star-forming galaxies.",
author = "J. Iglesias-P{\'a}ramo and V. Buat and J. Hern{\'a}ndez-Fern{\'a}ndez and Xu, {C. K.} and D. Burgarella and Takeuchi, {T. T.} and A. Boselli and D. Shupe and M. Rowan-Robinson and T. Babbedge and T. Conrow and F. Fang and D. Farrah and E. Gonz{\'a}lez-Solares and C. Lonsdale and G. Smith and J. Surace and Barlow, {T. A.} and K. Forster and Friedman, {P. G.} and Martin, {D. C.} and P. Morrissey and Neef, {S. G.} and D. Schiminovich and M. Seibert and T. Small and Wyder, {T. K.} and L. Bianchi and J. Donas and Heckman, {T. M.} and Young-Wook Lee and Madore, {B. F.} and B. Milliard and Rich, {R. M.} and Szalay, {A. S.} and Welsh, {B. Y.} and Sukyoung Yi",
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Iglesias-Páramo, J, Buat, V, Hernández-Fernández, J, Xu, CK, Burgarella, D, Takeuchi, TT, Boselli, A, Shupe, D, Rowan-Robinson, M, Babbedge, T, Conrow, T, Fang, F, Farrah, D, González-Solares, E, Lonsdale, C, Smith, G, Surace, J, Barlow, TA, Forster, K, Friedman, PG, Martin, DC, Morrissey, P, Neef, SG, Schiminovich, D, Seibert, M, Small, T, Wyder, TK, Bianchi, L, Donas, J, Heckman, TM, Lee, Y-W, Madore, BF, Milliard, B, Rich, RM, Szalay, AS, Welsh, BY & Yi, S 2007, 'UV to IR SEDs of UV-selected galaxies in the elais fields: Evolution of dust attenuation and star formation activity from z = 0.7 to 0.2', Astrophysical Journal, vol. 670, no. 1, pp. 279-294. https://doi.org/10.1086/521867

UV to IR SEDs of UV-selected galaxies in the elais fields : Evolution of dust attenuation and star formation activity from z = 0.7 to 0.2. / Iglesias-Páramo, J.; Buat, V.; Hernández-Fernández, J.; Xu, C. K.; Burgarella, D.; Takeuchi, T. T.; Boselli, A.; Shupe, D.; Rowan-Robinson, M.; Babbedge, T.; Conrow, T.; Fang, F.; Farrah, D.; González-Solares, E.; Lonsdale, C.; Smith, G.; Surace, J.; Barlow, T. A.; Forster, K.; Friedman, P. G.; Martin, D. C.; Morrissey, P.; Neef, S. G.; Schiminovich, D.; Seibert, M.; Small, T.; Wyder, T. K.; Bianchi, L.; Donas, J.; Heckman, T. M.; Lee, Young-Wook; Madore, B. F.; Milliard, B.; Rich, R. M.; Szalay, A. S.; Welsh, B. Y.; Yi, Sukyoung.

In: Astrophysical Journal, Vol. 670, No. 1, 20.11.2007, p. 279-294.

Research output: Contribution to journalArticle

TY - JOUR

T1 - UV to IR SEDs of UV-selected galaxies in the elais fields

T2 - Evolution of dust attenuation and star formation activity from z = 0.7 to 0.2

AU - Iglesias-Páramo, J.

AU - Buat, V.

AU - Hernández-Fernández, J.

AU - Xu, C. K.

AU - Burgarella, D.

AU - Takeuchi, T. T.

AU - Boselli, A.

AU - Shupe, D.

AU - Rowan-Robinson, M.

AU - Babbedge, T.

AU - Conrow, T.

AU - Fang, F.

AU - Farrah, D.

AU - González-Solares, E.

AU - Lonsdale, C.

AU - Smith, G.

AU - Surace, J.

AU - Barlow, T. A.

AU - Forster, K.

AU - Friedman, P. G.

AU - Martin, D. C.

AU - Morrissey, P.

AU - Neef, S. G.

AU - Schiminovich, D.

AU - Seibert, M.

AU - Small, T.

AU - Wyder, T. K.

AU - Bianchi, L.

AU - Donas, J.

AU - Heckman, T. M.

AU - Lee, Young-Wook

AU - Madore, B. F.

AU - Milliard, B.

AU - Rich, R. M.

AU - Szalay, A. S.

AU - Welsh, B. Y.

AU - Yi, Sukyoung

PY - 2007/11/20

Y1 - 2007/11/20

N2 - We study the ultraviolet to far-infrared (hereafter UV-to-IR) SEDs of a sample of intermediate-redshift (0.2 < z < 0.7) UV-selected galaxies from the ELAIS Nl and ELAIS N2 fields by fitting a multi-wavelength data set to a library of GRASIL templates. Star formation related properties of the galaxies are derived from the library of models by using Bayesian statistics. We find a decreasing presence of galaxies with low attenuation and low total luminosity as redshift decreases, which does not hold for high total luminosity galaxies. In addition, the dust attenuation of lowmass galaxies increases as redshift decreases, and this trend seems to disappear for galaxies with M* > 1011 M⊙. This result is consistent with a mass-dependent evolution of the dust-to-gas ratio, which could be driven by a mass-dependent efficiency of star formation in star-forming galaxies. The specific star formation rates (SSFR) decrease with increasing stellar mass at all redshifts, and for a given stellar mass the SSFR decreases with decreasing redshift. The differences in the slope of the M*-SSFR relation found between this work and others at similar redshift could be explained by the adopted selection criteria of the samples, which for a UV-selected sample, favors blue, star-forming galaxies.

AB - We study the ultraviolet to far-infrared (hereafter UV-to-IR) SEDs of a sample of intermediate-redshift (0.2 < z < 0.7) UV-selected galaxies from the ELAIS Nl and ELAIS N2 fields by fitting a multi-wavelength data set to a library of GRASIL templates. Star formation related properties of the galaxies are derived from the library of models by using Bayesian statistics. We find a decreasing presence of galaxies with low attenuation and low total luminosity as redshift decreases, which does not hold for high total luminosity galaxies. In addition, the dust attenuation of lowmass galaxies increases as redshift decreases, and this trend seems to disappear for galaxies with M* > 1011 M⊙. This result is consistent with a mass-dependent evolution of the dust-to-gas ratio, which could be driven by a mass-dependent efficiency of star formation in star-forming galaxies. The specific star formation rates (SSFR) decrease with increasing stellar mass at all redshifts, and for a given stellar mass the SSFR decreases with decreasing redshift. The differences in the slope of the M*-SSFR relation found between this work and others at similar redshift could be explained by the adopted selection criteria of the samples, which for a UV-selected sample, favors blue, star-forming galaxies.

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U2 - 10.1086/521867

DO - 10.1086/521867

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Iglesias-Páramo J, Buat V, Hernández-Fernández J, Xu CK, Burgarella D, Takeuchi TT et al. UV to IR SEDs of UV-selected galaxies in the elais fields: Evolution of dust attenuation and star formation activity from z = 0.7 to 0.2. Astrophysical Journal. 2007 Nov 20;670(1):279-294. https://doi.org/10.1086/521867