A multi-wavelength de-blended Herschel view of the statistical properties of dusty star-forming galaxies across cosmic time

Abstract

We aim to study the statistical properties of dusty star-forming galaxies, such as their number counts, luminosity functions (LF) and dust-obscured star-formation rate density (SFRD). We use state-of-the-art de-blended Herschel catalogue in the COSMOS field, generated by combining the Bayesian source extraction tool XID+ and informative prior on the spectral energy distributions, to measure the number counts and LFs at far-infrared (FIR) and sub-millimetre (sub-mm) wavelengths. Thanks to our de-confusion technique and deep multi-wavelength photometry, we are able to achieve more accurate measurements while probing ten times below the confusion limit. Our number counts at 250 microns agree well with previous Herschel studies. However, our counts at 350 and 500 microns are considerably below previous Herschel results. This is due to previous studies suffering from source confusion which worsens towards longer wavelength. Our number counts at 450 and 870 microns show excellent agreement with previous determinations derived from single dish and interferometric observations. Our measurements of the monochromatic LF and the total IR LF agree well with previous results. The increased dynamic range of our measurements allows us to better measure the faint-end slope of the LF and measure the dust-obscured SFRD out to z~6. We find that the fraction of dust obscured star-formation activity is at its highest around z~1 which then decreases towards both low and high redshift. We do not find a shift of balance between z~3 and z~4 in the cosmic star-formation history from being dominated by unobscured star formation at higher redshift to obscured star formation at lower redshift. However, we do find 3<z<4 to be an interesting transition period as the fraction of the total SFRD that is obscured by dust is significantly lower at higher redshifts.

21 pages, 10 figures, 8 table, accepted for publication in A&A

References in corpus (29)

• Cosmic Star Formation History
• The EAGLE project: Simulating the evolution and assembly of galaxies and their environments
• Infrared Emission from Interstellar Dust. IV. The Silicate-Graphite-PAH Model in the Post-Spitzer Era
• The Cosmic Evolution Survey (COSMOS) -- Overview
• Star Formation in AEGIS Field Galaxies since z=1.1 : The Dominance of Gradually Declining Star Formation, and the Main Sequence of Star-Forming Galaxies
• A Highly Consistent Framework for the Evolution of the Star-Forming "Main Sequence" from z~0-6
• The EAGLE simulations of galaxy formation: calibration of subgrid physics and model variations
• UV Luminosity Functions at redshifts z~4 to z~10: 10000 Galaxies from HST Legacy Fields
• The Herschel view of the dominant mode of galaxy growth from z=4 to the present day
• The Cosmic Infrared Background Resolved by Spitzer. Contributions of Mid-Infrared Galaxies to the Far-Infrared Background
• The SCUBA-2 Cosmology Legacy Survey: 850um maps, catalogues and number counts
• SKIRT: an Advanced Dust Radiative Transfer Code with a User-Friendly Architecture
• The Large APEX Bolometer Camera LABOCA
• An ALMA survey of submillimetre galaxies in the Extended Chandra Deep Field South: High resolution 870um source counts
• Modelling the Pan-Spectral Energy Distribution of Starburst Galaxies: IV The Controlling Parameters of the Starburst SED
• A Turnover in the Galaxy Main Sequence of Star Formation at $M_{\ast }\sim 10^{10}{M}_{\odot }$ for Redshifts $z<1.3$
• Submillimetre galaxies in a hierarchical universe: number counts, redshift distribution, and implications for the IMF
• The Herschel-ATLAS Data Release 1 Paper I: Maps, Catalogues and Number Counts
• The SCUBA-2 Cosmology Legacy Survey: ALMA resolves the bright-end of the sub-millimeter number counts
• The Balloon-borne Large Aperture Submillimeter Telescope: BLAST
• Far-infrared and dust properties of present-day galaxies in the EAGLE simulations
• Characterizing the UV-to-NIR shape of the dust attenuation curve of IR luminous galaxies up to z$\sim$2
• Far-infrared surveys of galaxy evolution
• Simulated observations of sub-millimetre galaxies: the impact of single-dish resolution and field variance
• Submillimeter Number Counts at 250, 350 and 500 microns in BLAST data
• Reproducing the assembly of massive galaxies within the hierarchical cosmogony
• The SCUBA-2 Cosmology Legacy Survey: The EGS deep field I - Deep number counts and the redshift distribution of the recovered Cosmic Infrared Background at 450 and 850 um
• SCUBA-2 Ultra Deep Imaging EAO Survey (STUDIES): Faint-End Counts at 450 um
• The faint end of the 250 micron luminosity function at z < 0.5

Cited by in corpus (23)

• The Evolution of the IR Luminosity Function and Dust-obscured Star Formation in the Last 13 Billion Years
• CONCERTO: High-fidelity simulation of millimeter line emissions of galaxies and [CII] intensity mapping
• GAMA/DEVILS: Constraining the cosmic star-formation history from improved measurements of the 0.3-2.2 micron Extragalactic Background Light
• The ALMA REBELS Survey: The First Infrared Luminosity Function Measurement at $\mathbf{z \sim 7}
• The bright end of the infrared luminosity functions and the abundance of hyperluminous infrared galaxies
• Cosmic metal density evolution in neutral gas: insights from observations and cosmological simulations
• Predicting sub-millimeter flux densities from global galaxy properties
• Infrared luminosity functions and dust mass functions in the EAGLE simulation
• The observed cosmic star formation rate density has an evolution which resembles a Γ(a, bt) distribution and can be described successfully by only 2 parameters
• Diagnosing the interstellar medium of galaxies with far-infrared emission lines I. The [C II] 158 microns line at z~0
• Diagnosing the interstellar medium of galaxies with far-infrared emission lines II. [C II], [O I], [O III], [N II] and [N III] up to z=6
• An Orientation Bias in Observations of Submillimetre Galaxies
• Over-density of SMGs in fields containing z~0.3 galaxies: magnification bias and the implications for studies of galaxy evolution
• High-z dusty star-forming galaxies: a top-heavy initial mass function?
• ALMACAL VII: First Interferometric Number Counts at 650 $\mu$m
• Probabilistic and progressive deblended far-infrared and sub-millimetre point source catalogues I. Methodology and first application in the COSMOS field
• JWST PRIMER: A deep JWST study of all ALMA-detected galaxies in PRIMER COSMOS -- dust-obscured star-formation history back to z $\simeq$ 7
• SCUBA-2 Ultra Deep Imaging EAO Survey (STUDIES). V. Confusion-limited Submillimeter Galaxy Number Counts at 450 $\mu$m and Data Release for the COSMOS Field
• Strength in Numbers: Red Galaxies Bolster the Cosmic Star Formation Rate Density at z > 3
• Tracing obscured galaxy build-up at high redshift using deep radio surveys
• Euclid view of dusty star forming galaxies at z>~1.5 detected in wide area submillimetre surveys
• First Light And Reionisation Epoch Simulations (FLARES) III: The properties of massive dusty galaxies at cosmic dawn
• Evolution of the infrared luminosity function and its corresponding dust-obscured star formation rate density out to z~6