SwePub
Sök i LIBRIS databas

  Extended search

(WFRF:(Scott Kirsten M.))
 

Search: (WFRF:(Scott Kirsten M.)) > (2015-2019) > A direct calibratio...

A direct calibration of thtae IRX-β relation in Lyman-break Galaxies at z = 3-5

Koprowski, M. P. (author)
University of Hertfordshire
Coppin, K. E. K. (author)
University of Hertfordshire
Geach, J.E. (author)
University of Hertfordshire
show more...
McLure, R. J. (author)
University of Edinburgh
Almaini, O. (author)
University Of Nottingham
Blain, A. (author)
University Of Leicester
Bremer, M. (author)
University of Bristol
Bourne, N. (author)
University of Edinburgh
Chapman, S. C. (author)
Dalhousie University
Conselice, C. (author)
University Of Nottingham
Dunlop, J. S. (author)
University of Edinburgh
Farrah, D. (author)
Virginia Polytechnic Institute and State University (Virginia Tech)
Hartley, W. G. (author)
University College London (UCL)
Karim, A. (author)
Universität Bonn,University of Bonn
Knudsen, Kirsten Kraiberg, 1976 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Michalowski, M. J. (author)
Uniwersytet im. Adama Mickiewicza w Poznaniu,Adam Mickiewicz University in Poznań
Scott, D. (author)
University of British Columbia (UBC)
Simpson, C. (author)
Gemini Observatory North
Smith, D. J. B. (author)
University of Hertfordshire
van der Werf, P. (author)
Universiteit Leiden (UL),Leiden University (UL)
show less...
 (creator_code:org_t)
2018-06-12
2018
English.
In: Monthly Notices of the Royal Astronomical Society. - : Oxford University Press (OUP). - 0035-8711 .- 1365-2966. ; 479:4, s. 4355-4366
Related links:
https://research.cha... (primary) (free)
show more...
https://arxiv.org/pd...
https://doi.org/10.1...
https://research.cha...
show less...
  • Journal article (peer-reviewed)
Abstract Subject headings
Close  
  • We use a sample of 4209 Lyman-break galaxies (LBGs) at z ≃ 3, 4, and 5 in the UKIRT Infrared Deep Sky Survey Ultra Deep Survey field to investigate the relationship between the observed slope of the stellar continuum emission in the ultraviolet, β, and the thermal dust emission, as quantified via the so-called 'infrared excess' (IRX=LIR/LUV). Through a stacking analysis, we directly measure the 850-μm flux density of LBGs in our deep (0.9 mJy) James Clerk Maxwell Telescope SCUBA-2 850-μm map as well as deep public Herschel/SPIRE 250-, 350-, and 500-μm imaging. We establish functional forms for the IRX-β relation to z ~ 5, confirming that there is no significant redshift evolution of the relation, and that the resulting average IRX-β curve is consistent with a Calzetti-like attenuation law. Comparing our results with recent works in the literature, we confirm that discrepancies in the slope of the IRX-β relation are driven by biases in the methodology used to determine the ultraviolet slopes. Consistent results are found when IRX-β is evaluated by stacking in bins of stellar mass, and we argue that the near-linear IRX-M* relationship is a better proxy for correcting observed ultraviolet luminosities to total star formation rates, provided an accurate handle on M* and also gives clues as to the physical driver of the role of dust-obscured star formation in high-redshift galaxies.

Subject headings

NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Geofysik (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Geophysics (hsv//eng)
NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Multidisciplinär geovetenskap (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Geosciences, Multidisciplinary (hsv//eng)

Keyword

Galaxies: ISM
Galaxies: high-redshift
Galaxies: star formation
Cosmology: observations
Dust
extinction

Publication and Content Type

art (subject category)
ref (subject category)

Find in a library

To the university's database

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Close

Copy and save the link in order to return to this view