prikaz prve stranice dokumenta Evolution of the dust emission of massive galaxies up to z = 4 and constraints on their dominant mode of star formation
  Download
PDF 2.4 MB
Scientific paper - Original scientific paper
Evolution of the dust emission of massive galaxies up to z = 4 and constraints on their dominant mode of star formation
Astronomy and Astrophysics, 573 (2015); 113. https://doi.org/10.1051/0004-6361/201425031
Béthermin, Matthieu; Daddi, Emanuele; Magdis, Georgios; Lagos, Claudia; Sargent, Mark; Albrecht, Marcus; Aussel, Hervé; Bertoldi, Frank; Buat, Véronique; Galametz, Maud; Heinis, Sébastien; Ilbert, Olivier; Karim, Alexander; Koekemoer, Anton; Lacey, Cedric; Le Floc'h, Emeric; Navarrete, Felipe; Pannella, Maurilio; Schreiber, Corentin; Smolčić, Vernesa; Symeonidis, Myrto; Viero, Marco More authors...

Institutional repository: Repository of the Faculty of Science

Cite this document

Béthermin, M., Daddi, E., Magdis, G., Lagos, C., Sargent, M., Albrecht, M. ... Viero, M. (2015). Evolution of the dust emission of massive galaxies up to z = 4 and constraints on their dominant mode of star formation. Astronomy and Astrophysics, 573.. doi: 10.1051/0004-6361/201425031

Béthermin, Matthieu, et al. "Evolution of the dust emission of massive galaxies up to z = 4 and constraints on their dominant mode of star formation." Astronomy and Astrophysics, vol. 573, 2015. https://doi.org/10.1051/0004-6361/201425031

Béthermin, Matthieu, Emanuele Daddi, Georgios Magdis, Claudia Lagos, Mark Sargent, Marcus Albrecht, Hervé Aussel, et al. "Evolution of the dust emission of massive galaxies up to z = 4 and constraints on their dominant mode of star formation." Astronomy and Astrophysics 573 (2015). https://doi.org/10.1051/0004-6361/201425031

Béthermin, M., et al. (2015) 'Evolution of the dust emission of massive galaxies up to z = 4 and constraints on their dominant mode of star formation', Astronomy and Astrophysics, 573. doi: 10.1051/0004-6361/201425031

Béthermin M, Daddi E, Magdis G, Lagos C, Sargent M, Albrecht M, and sur.. Evolution of the dust emission of massive galaxies up to z = 4 and constraints on their dominant mode of star formation. Astronomy and Astrophysics [Internet]. 2015 [cited 2024 November 25];573. doi: 10.1051/0004-6361/201425031

M. Béthermin, et al., "Evolution of the dust emission of massive galaxies up to z = 4 and constraints on their dominant mode of star formation", Astronomy and Astrophysics, vol. 573, 2015. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:943144. [Accessed: 25 November 2024]

Metadata
Title (english)Evolution of the dust emission of massive galaxies up to z = 4 and constraints on their dominant mode of star formation
AuthorMatthieu Béthermin
AuthorEmanuele Daddi
AuthorGeorgios Magdis
AuthorClaudia Lagos
AuthorMark Sargent
AuthorMarcus Albrecht
AuthorHervé Aussel
AuthorFrank Bertoldi
AuthorVéronique Buat
AuthorMaud Galametz
AuthorSébastien Heinis
AuthorOlivier Ilbert
AuthorAlexander Karim
AuthorAnton Koekemoer
AuthorCedric Lacey
AuthorEmeric Le Floc'h
AuthorFelipe Navarrete
AuthorMaurilio Pannella
AuthorCorentin Schreiber
AuthorVernesa Smolčić
AuthorMyrto Symeonidis
AuthorMarco Viero
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Astronomy and Astrophysics
Abstract (english)
We aim to measure the average dust and molecular gas content of massive star-forming galaxies (>3 × 10^(10)M_⊙) up to z = 4 in the COSMOS field to determine if the intense star formation observed at high redshift is induced by major mergers or is caused by large gas reservoirs. Firstly, we measured the evolution of the average spectral energy distributions as a function of redshift using a stacking analysis of Spitzer, Herschel, LABOCA, and AzTEC data for two samples of galaxies: normal star-forming objects and strong starbursts, as defined by their distance to the main sequence. We found that the mean intensity of the radiation field ⟨ U ⟩ heating the dust (strongly correlated with dust temperature) increases with increasing redshift up to z = 4 in main-sequence galaxies. We can reproduce this evolution with simple models that account for the decrease in the gas metallicity with redshift. No evolution of ⟨ U ⟩ with redshift is found in strong starbursts. We then deduced the evolution of the molecular gas fraction (defined here as M_(mol)/(M_(mol)+M_⋆)) with redshift and found a similar, steeply increasing trend for both samples. At z ~ 4, this fraction reaches ~60%. The average position of the main-sequence galaxies is on the locus of the local, normal star-forming disks in the integrated Schmidt-Kennicutt diagram (star formation rate versus mass of molecular gas), suggesting that the bulk of the star formation up to z = 4 is dominated by secular processes.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titleAstronomy and Astrophysics
Numberingvol. 573, 113
p-ISSN0004-6361
DOIhttps://doi.org/10.1051/0004-6361/201425031
URN:NBNurn:nbn:hr:217:943144
Publication2015
Document URLhttp://dx.doi.org/10.1051/0004-6361/201425031
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Public note© 2015 ESO. Received: 19 September 2014. Accepted: 11 November 2014. Published online 07 January 2015.
Created on2019-12-30 12:11:12