Статья

Deep Extragalactic VIsible Legacy Survey (DEVILS): SED fitting in the D10-COSMOS field and the evolution of the stellar mass function and SFR–<i>M</i>⋆ relation

Jessica E ThorneICRAR, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, AustraliaA. S. G. RobothamARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D), AustraliaL. J. M. DaviesICRAR, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, AustraliaSabine BellstedtICRAR, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, AustraliaSimon P. DriverICRAR, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, AustraliaMatías BravoICRAR, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, AustraliaL. PozzettiAstrophysics Group, School of Physics, University of Bristol, Bristol BS8 1TL, UKBenne W. HolwerdaDepartment of Physics and Astronomy, University of Louisville, 102 Natural Science Building, Louisville, KY 40292, USAAndrew HopkinsAustralian Astronomical Optics, Macquarie University, 105 Delhi Road, North Ryde, NSW 2113, AustraliaClaudia del P. LagosARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D), AustraliaS. PhillippsAstrophysics Group, School of Physics, University of Bristol, Bristol BS8 1TL, UKM. SiudekInstitut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology, E-08193 Bellaterra, Barcelona, SpainEdward N. TaylorCentre for Astrophysics and Supercomputing, Swinburne University of Technology, John Street, Hawthorn, VIC 3122, AustraliaAngus H. WrightRuhr-University Bochum, Astronomical Institute, German Center for Cosmological Lensing, Universitätsstraße 150, D-44780 Bochum, Germany

2021en

ABI

Аннотация

ABSTRACT We present catalogues of stellar masses, star formation rates (SFRs), and ancillary stellar population parameters for galaxies spanning 0 &lt; z &lt; 9 from the Deep Extragalactic VIsible Legacy Survey (DEVILS). DEVILS is a deep spectroscopic redshift survey with very high completeness, covering several premier deep fields including COSMOS (D10). Our stellar mass and SFR estimates are self-consistently derived using the spectral energy distribution (SED) modelling code ProSpect, using well-motivated parametrizations for dust attenuation, star formation histories, and metallicity evolution. We show how these improvements, and especially our physically motivated assumptions about metallicity evolution, have an appreciable systematic effect on the inferred stellar masses, at the level of ∼0.2 dex. To illustrate the scientific value of these data, we map the evolving galaxy stellar mass function (SMF) and the SFR–M⋆ relation for 0 &lt; z &lt; 4.25. In agreement with past studies, we find that most of the evolution in the SMF is driven by the characteristic density parameter, with little evolution in the characteristic mass and low-mass slopes. Where the SFR–M⋆ relation is indistinguishable from a power law at z &gt; 2.6, we see evidence of a bend in the relation at low redshifts (z &lt; 0.45). This suggests evolution in both the normalization and shape of the SFR–M⋆ relation since cosmic noon. It is significant that we only clearly see this bend when combining our new DEVILS measurements with consistently derived values for lower redshift galaxies from the Galaxy And Mass Assembly (GAMA) survey: this shows the power of having consistent treatment for galaxies at all redshifts.

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Идентификаторы

DOI: 10.1093/mnras/stab1294

Цитирования и источники

Цитирований: 2Использованных источников: 0

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