2020MNRAS.499.1948L


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.11CEST10:31:53

2020MNRAS.499.1948L - Mon. Not. R. Astron. Soc., 499, 1948-1971 (2020/December-1)

Physical properties and evolution of (sub-)millimetre-selected galaxies in the galaxy formation simulation SHARK.

LAGOS C.D.P., DA CUNHA E., ROBOTHAM A.S.G., OBRESCHKOW D., VALENTINO F., FUJIMOTO S., MAGDIS G.E. and TOBAR R.

Abstract (from CDS):

We thoroughly explore the properties of (sub)-millimetre (mm) selected galaxies (SMGs) in the SHARK semi-analytic model of galaxy formation. Compared to observations, the predicted number counts at wavelengths (λ) 0.6-2 mm and redshift distributions at 0.1-2 mm, agree well. At the bright end (>=1 mJy), SHARK galaxies are a mix of mergers and disc instabilities. These galaxies display a stacked far-ultraviolet (FUV)-to-far-infrared (FIR) spectrum that agrees well with observations. We predict that current optical/NIR surveys are deep enough to detect bright (>1 mJy) λ = 0.85-2 mm-selected galaxies at z <= 5, but too shallow to detect counterparts at higher redshift. A James Webb Space Telescope 10 000s survey should detect all counterparts for galaxies with S0.85mm >= 0.01 mJy. We predict SMG's disks contribute significantly (negligibly) to the rest-frame UV (IR). We investigate the 0 <= z <= 6 evolution of the intrinsic properties of >1 mJy λ = 0.85-2 mm-selected galaxies finding their: (i) stellar masses are > 1010.2 M, with the 2 mm ones tracing the most massive galaxies (> 1011 M); (ii) specific star formation rates (SFR) are mildly (≃3-10 times) above the main sequence (MS); (iii) host halo masses are ≳1012.3 M, with 2 mm galaxies tracing the most massive haloes (protoclusters); (iv) SMGs have lower dust masses (~108 M), higher dust temperatures (≃40-45 K) and higher rest-frame V-band attenuation (>1.5) than MS galaxies; (v) sizes decrease with redshift, from 4 kpc at z = 1 to <=1 kpc at z = 4; and (vi) the carbon monoxide line spectra of S0.85mm >= 1 mJy sources peak at 4 - 3. Finally, we study the contribution of SMGs to the molecular gas and cosmic SFR density at 0 <= z <= 10, finding that >1 mJy sources make a negligible contribution at z >= 3 and 5, respectively, suggesting current observations have unveiled the majority of the SF at 0 <= z <= 10.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: evolution - galaxies: formation - galaxies: ISM - submillimetre: galaxies

Simbad objects: 1

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Number of rows : 1

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NAME Hubble Ultra Deep Field reg 03 32 39.0 -27 47 29           ~ 1366 0

    Equat.    Gal    SGal    Ecl

C.D.S. - SIMBAD4 rel 1.7 - 2021.05.11CEST10:31:53

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NAME Hubble Ultra Deep Field -- Region defined in the sky
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Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
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    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
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ICRS coord. (ep=J2000) :
03 32 39.0 -27 47 29 [ ] D ~
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
FK4 coord. (ep=B1950 eq=1950) :
03 30 33.4 -27 57 34 [ ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
Gal coord. (ep=J2000) :
223.5548 -54.3948 [ ]
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References (1366 between 1850 and 2021) (Total 1366)
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2021.05.11-10:31:53

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