Star Formation in the Nearby Universe: The Ultraviolet and Infrared Points of View | Zendy

J. Iglésias-Páramo | Zendy; V. Buat | Zendy; Tsutomu T. Takeuchi | Zendy; K. Xu | Zendy; S. Boissier | Zendy; A. Boselli | Zendy; D. Burgarella | Zendy; B. F. Madore | Zendy; A. Gil de Paz | Zendy; L. Bianchi | Zendy; Tom A. Barlow | Zendy; Y.I. Byun | Zendy; J. Donas | Zendy; Karl Förster | Zendy; Peter G. Friedman | Zendy; Timothy M. Heckman | Zendy; P. N. Jelinski | Zendy; Yong Won Lee | Zendy; Roger F. Malina | Zendy; D. Christopher Martin | Zendy; B. Milliard | Zendy; Patrick Morrissey | Zendy; Susan G. Neff | Zendy; R. Michael Rich | Zendy; D. Schiminovich | Zendy; Mark Seibert | Zendy; Oswald H. W. Siegmund | Zendy; Todd Small | Zendy; Alexander S. Szalay | Zendy; Barry Y. Welsh | Zendy; Ted K. Wyder | Zendy

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Star Formation in the Nearby Universe: The Ultraviolet and Infrared Points of View

Author(s) -

J. Iglésias-Páramo,

V. Buat,

Tsutomu T. Takeuchi,

K. Xu,

S. Boissier,

A. Boselli,

D. Burgarella,

B. F. Madore,

A. Gil de Paz,

L. Bianchi,

Tom A. Barlow,

Y.I. Byun,

J. Donas,

Karl Förster,

Peter G. Friedman,

Timothy M. Heckman,

P. N. Jelinski,

Yong Won Lee,

Roger F. Malina,

D. Christopher Martin,

B. Milliard,

Patrick Morrissey,

Susan G. Neff,

R. Michael Rich,

D. Schiminovich,

Mark Seibert,

Oswald H. W. Siegmund,

Todd Small,

Alexander S. Szalay,

Barry Y. Welsh,

Ted K. Wyder

Publication year - 2006

Publication title -

the astrophysical journal supplement series

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.546

H-Index - 277

eISSN - 1538-4365

pISSN - 0067-0049

DOI - 10.1086/502628

Subject(s) - astrophysics , physics , galaxy , star formation , luminosity , estimator , infrared , attenuation , cosmic cancer database , universe , ultraviolet , luminous infrared galaxy , astronomy , statistics , mathematics , quantum mechanics , optics

This work presents the main ultraviolet (UV) and far-infrared (FIR)properties of two samples of nearby galaxies selected from the GALEX ($\lambda= 2315$\AA, hereafter NUV) and IRAS ($\lambda = 60\mu$m) surveys respectively.They are built in order to get detection at both wavelengths for most of thegalaxies. Star formation rate (SFR) estimators based on the UV and FIRemissions are compared. Systematic differences are found between the SFRestimators for individual galaxies based on the NUV fluxes corrected for dustattenuation and on the total IR luminosity. A combined estimator based on NUVand IR luminosities seems to be the best proxy over the whole range of valuesof SFR. Although both samples present similar average values of the birthrateparameter b, their star-formation-related properties are substantiallydifferent: NUV-selected galaxies tend to show larger values of $b$ for lowermasses, SFRs and dust attenuations, supporting previous scenarios for the starformation history (SFH). Conversely, about 20% of the FIR-selected galaxiesshow high values of $b$, SFR and NUV attenuation. These galaxies, most of thembeing LIRGs and ULIRGs, break down the downsizing picture for the SFH, howevertheir relative contribution per unit volume is small in the local Universe.Finally, the cosmic SFR density of the local Universe is estimated in aconsistent way from the NUV and IR luminosities.Comment: 43 pages, 13 figures, accepted for publication in Astrophysical Journal Supplement Serie

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