GAMA/G10-COSMOS/3D-HST : the 0 < z < 5 cosmic star-formation history, stellar- and dust-mass densities
MetadataShow full item record
We use the energy-balance code MAGPHYS to determine stellar and dust masses, and dust corrected star-formation rates for over 200,000 GAMA galaxies, 170,000 G10-COSMOS galaxies and 200,000 3D-HST galaxies. Our values agree well with previously reported measurements and constitute a representative and homogeneous dataset spanning a broad range in stellar mass (108—1012M⊙), dust mass (106—109M⊙), and star-formation rates (0.01—100M⊙yr−1), and over a broad redshift range (0.0 < z < 5.0). We combine these data to measure the cosmic star-formation history (CSFH), the stellar-mass density (SMD), and the dust-mass density (DMD) over a 12 Gyr timeline. The data mostly agree with previous estimates, where they exist, and provide a quasi-homogeneous dataset using consistent mass and star-formation estimators with consistent underlying assumptions over the full time range. As a consequence our formal errors are significantly reduced when compared to the historic literature. Integrating our cosmic star-formation history we precisely reproduce the stellar-mass density with an ISM replenishment factor of 0.50 ± 0.07, consistent with our choice of Chabrier IMF plus some modest amount of stripped stellar mass. Exploring the cosmic dust density evolution, we find a gradual increase in dust density with lookback time. We build a simple phenomenological model from the CSFH to account for the dust mass evolution, and infer two key conclusions: (1) For every unit of stellar mass which is formed 0.0065—0.004 units of dust mass is also formed; (2) Over the history of the Universe approximately 90 to 95 per cent of all dust formed has been destroyed and/or ejected.
Driver , S P , Andrews , S K , Cunha , E D , Davies , L J , Lagos , C , Robotham , A S G , Vinsen , K , Wright , A H , Alpaslan , M , Bland-Hawthorn , J , Bourne , N , Brough , S , Bremer , M N , Cluver , M , Colless , M , Conselice , C J , Dunne , L , Eales , S A , Gomez , H , Holwerda , B , Hopkins , A M , Kafle , P R , Kelvin , L S , Loveday , J , Liske , J , Maddox , S J , Phillipps , S , Pimbblet , K , Rowlands , K , Sansom , A E , Taylor , E , Wang , L & Wilkins , S M 2017 , ' GAMA/G10-COSMOS/3D-HST : the 0 < z < 5 cosmic star-formation history, stellar- and dust-mass densities ' Monthly Notices of the Royal Astronomical Society , vol Advance articles . DOI: 10.1093/mnras/stx2728
Monthly Notices of the Royal Astronomical Society
© 2017, the Author(s). This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1093/mnras/stx2728
Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.