2014A&A...572L...4O


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.10CEST01:54:47

2014A&A...572L...4O - Astronomy and Astrophysics, volume 572, L4-4 (2014/12-1)

Dust correction factors over 0 < z < 3 in massive star-forming galaxies derived from a stacking analysis of Herschel data.

OTEO I.

Abstract (from CDS):

We use a stacking analysis in Herschel/PACS to study the accuracy of several dust-correction factors that are typically employed to estimate the total star-formation rate (SFR) of high-redshift, massive, star-forming (SF) galaxies. We also analyze what stacking suggests about the relation between SFR and stellar mass and the redshift evolution of the specific SFR (sSFR=SFR/M*). We find that the dust properties of massive SF galaxies evolve with redshift, that is, galaxies at z∼2-3 are more attenuated than at z∼1 for a given UV continuum slope and stellar mass. As a consequence, a single IRX-β or dust-mass relation cannot be used to recover the total SFR of massive SF galaxies at 0≲z≲3. This might have implications for studies at higher redshifts, where a single IRX-β relation derived for local starbursts is usually assumed to be valid. However, we find evidence that the local relations might be valid at least up to z ∼1, where bluer and less massive galaxies can be detected through stacking. The spectral energy distribution fitting procedure with stellar population templates gives overestimated values (about 0.3-0.5dex in logSFR) of the dust-corrected SFR at all redshifts studied here. We find that the slope of the main-sequence of star formation is flatter than previously found in massive galaxies with log(M*/M≥10, and the redshift evolution of the sSFR reported in previous works in massive galaxies is well recovered.

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Journal keyword(s): galaxies: photometry - galaxies: evolution - galaxies: high-redshift - galaxies: star formation

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 - 2020
#notes
1 NAME COSMOS Field reg 10 00 28.60 +02 12 21.0           ~ 2069 0

    Equat.    Gal    SGal    Ecl

C.D.S. - SIMBAD4 rel 1.7 - 2020.07.10CEST01:54:47

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    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
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10 00 28.60 +02 12 21.0 [ ] D 2007ApJS..172..523M
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) :
09 57 53.49 +02 26 47.2 [ ]
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) :
236.82224 +42.12163 [ ]
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2020.07.10-01:54:47

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