| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Schneider, Raffaella
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2016The dust content of the most metal-poor star-forming galaxiescitations
- 2016SN Dust Yields: Fallback, Metallicity and Rotation Impact
- 2015The dust mass in z 〉 6 normal star-forming galaxiescitations
- 2015Supernova dust formation and the grain growth in the early universe: the critical metallicity for low-mass star formationcitations
- 2015The metal and dust yields of the first massive starscitations
- 2015The dust mass in z > 6 normal star-forming galaxiescitations
- 2014Dust grain growth and the formation of the extremely primitive star SDSS J102915+172927citations
- 2013Growth of Dust Grains in a Low-Metallicity Gas and its Effect on the Cloud Fragmentation
- 2012The first low-mass stars: critical metallicity or dust-to-gas ratio?citations
- 2011The origin of the dust in high-redshift quasars:The case of SDSS J1148+5251citations
- 2011The origin of the dust in high-redshift quasars: the case of SDSS J1148+5251citations
- 2006Fragmentation of star-forming clouds enriched with the first dustcitations
Places of action
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article
The dust mass in z 〉 6 normal star-forming galaxies
Abstract
We interpret recent ALMA observations of z 〉 6 normal star-forming galaxies by means of a seminumerical method, which couples the output of a cosmological hydrodynamical simulation with a chemical evolution model which accounts for the contribution to dust enrichment from supernovae, asymptotic giant branch stars and grain growth in the interstellar medium. We find that while stellar sources dominate the dust mass of small galaxies, the higher level of metal enrichment experienced by galaxies with M<SUB>star</SUB> 〉 10<SUP>9</SUP> M<SUB>☉</SUB> allows efficient grain growth, which provides the dominant contribution to the dust mass. Even assuming maximally efficient supernova dust production, the observed dust mass of the z = 7.5 galaxy A1689-zD1 requires very efficient grain growth. This, in turn, implies that in this galaxy the average density of the cold and dense gas, where grain growth occurs, is comparable to that inferred from observations of quasar (QSO) host galaxies at similar redshifts. Although plausible, the upper limits on the dust continuum emission of galaxies at 6.5 〈 z 〈 7.5 show that these conditions must not apply to the bulk of the high-redshift galaxy population.