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; D. C. Martin; P. Morrissey; S. G. Neef; D. Schiminovich; M. Seibert; T. Small; T. K. Wyder; L. Bianchi; J. Donas; T. M. Heckman; Y. W. Lee; B. F. Madore; B. Milliard; R. M. Rich; A. S. Szalay; B. Y. Welsh; S. K. Yi

doi: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

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. FriedmanD. C. Martin, P. Morrissey, S. G. Neef, D. Schiminovich, M. Seibert, T. Small, T. K. Wyder, L. Bianchi, J. Donas, T. M. Heckman, Y. W. Lee, B. F. Madore, B. Milliard, R. M. Rich, A. S. Szalay, B. Y. Welsh, S. K. Yi

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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 language	English
Pages (from-to)	279-294
Number of pages	16
Journal	Astrophysical Journal
Volume	670
Issue number	1
DOIs	https://doi.org/10.1086/521867
Publication status	Published - 2007 Nov 20

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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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., ... Yi, S. K. (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, 670(1), 279-294. https://doi.org/10.1086/521867

@article{065f126a1d56465f8b07c4d752a469c1,

title = "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",

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 Lee, {Y. W.} and Madore, {B. F.} and B. Milliard and Rich, {R. M.} and Szalay, {A. S.} and Welsh, {B. Y.} and Yi, {S. K.}",

year = "2007",

month = nov,

day = "20",

doi = "10.1086/521867",

language = "English",

volume = "670",

pages = "279--294",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "IOP Publishing Ltd.",

number = "1",

}

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, YW, Madore, BF, Milliard, B, Rich, RM, Szalay, AS, Welsh, BY & Yi, SK 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

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, Y. W.

AU - Madore, B. F.

AU - Milliard, B.

AU - Rich, R. M.

AU - Szalay, A. S.

AU - Welsh, B. Y.

AU - Yi, S. K.

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.

UR - http://www.scopus.com/inward/record.url?scp=39049151687&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=39049151687&partnerID=8YFLogxK

U2 - 10.1086/521867

DO - 10.1086/521867

M3 - Article

AN - SCOPUS:39049151687

SN - 0004-637X

VL - 670

SP - 279

EP - 294

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

ER -

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

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