Accurate dust temperature determination in a z = 7.13 galaxy
T. Bakx,Laura Sommovigo,Stefano Carniani,Andrea Ferrara,Hollis B. Akins,Seiji Fujimoto,Masato Hagimoto,Kirsten Kraiberg Knudsen,Andrea Pallottini,Yoichi Tamura,Darach Watson +10 more
TLDR
In this paper, the authors used ALMA Band 9 continuum observations of the normal, dusty star-forming galaxy A1689-zD1 at z = 7.13, resulting in a ∼4.6 σ detection at 702 GHz.Abstract:
We report ALMA Band 9 continuum observations of the normal, dusty star-forming galaxy A1689-zD1 at z = 7.13, resulting in a ∼4.6 σ detection at 702 GHz. For the first time, these observations probe the far-infrared spectrum shortward of the emission peak of a galaxy in the Epoch of Reionization (EoR). Together with ancillary data from earlier works, we derive the dust temperature, Td, and mass, Md, of A1689-zD1 using both traditional modified blackbody spectral energy density fitting, and a new method that relies only on the [C ii] 158 μm line and underlying continuum data. The two methods give Td = (42+13-7, 40+13-) K, and Md} = (1.7+1.3-0.7, 2.0+1.8-1.0), ×, 107, M⊙. Band 9 observations improve the accuracy of the dust temperature (mass) estimate by ∼50 per cent (6 times). The derived temperatures confirm the reported increasing Td-redshift trend between z = 0 and 8; the dust mass is consistent with a supernova origin. Although A1689-zD1 is a normal UV-selected galaxy, our results, implying that ∼85 per cent of its star-formation rate is obscured, underline the non-negligible effects of dust in EoR galaxies.read more
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Journal ArticleDOI
The ALMA REBELS Survey: the dust content of $z \sim 7$ Lyman Break Galaxies
Pratika Dayal,A. Ferrara,L Sommovigo,R. J. Bouwens,Pascal Oesch,Renske Smit,V. Gonzalez,S. Schouws,Mauro Stefanon,Chiaki Kobayashi,J. Bremer,H. S. B. Algera,Manuel Aravena,Rebecca A. A. Bowler,E. da Cunha,Y. Fudamoto,L. Graziani,Jacqueline Hodge,Hanae Inami,I. De Looze,Andrea Pallottini,Dominik Riechers,Raffaella Schneider,Daniel P. Stark,Ryan Endsley +24 more
TL;DR: In this paper , a fully coupled treatment of metal and dust enrichment into the delphi semi-analytic model of galaxy formation was proposed to explain the dust content of 13 Lyman Break Galaxies (LBGs) detected by the Atacama Large millimetre Array (ALMA) REBELS Large Program at z ' 7.
Journal ArticleDOI
The REBELS ALMA Survey: cosmic dust temperature evolution out to z $\sim$ 7
L Sommovigo,A. Ferrara,Andrea Pallottini,Pratika Dayal,R. J. Bouwens,Renske Smit,E. da Cunha,I. De Looze,Rebecca A. A. Bowler,Jacqueline Hodge,Hanae Inami,Pascal Oesch,Ryan Endsley,V. Gonzalez,S. Schouws,Daniel P. Stark,Mauro Stefanon,Manuel Aravena,L. Graziani,Dominik Riechers,Raffaella Schneider,Paul P. van der Werf,H. S. B. Algera,Laia Barrufet,Y. Fudamoto,Alexander P. S. Hygate,I. Labb'e,Y.N. Li,Themiya Nanayakkara,Michael W. Topping +29 more
TL;DR: In this article , a new method based on simultaneous [C II] 158μm line and underlying dust continuum measurements was proposed to derive Td in the continuum and [CII] detected z ≈ 7 galaxies in the ALMA Large Project REBELS sample.
Journal ArticleDOI
OUP accepted manuscript
TL;DR: In this paper , a new method based on simultaneous [CII] 158$\mu$m line and underlying dust continuum measurements was used to derive $T_ d$ in the continuum and [C II] detected $z\approx 7$ galaxies in the ALMA Large Project REBELS sample.
Journal ArticleDOI
OUP accepted manuscript
TL;DR: In this paper , the authors analyse FIR dust continuum measurements for 14 galaxies in the ALMA REBELS LP to derive their physical properties, and they find that the galaxies have (28-90.5)% of their star formation obscured; the total (UV+IR) star formation rates are in the range $31.5 < SFR/ (M_\odot {\rm yr}-1}) < 129.5$.
Journal ArticleDOI
The ALMA REBELS Survey: Specific Star-Formation Rates in the Reionization Era
Michael W. Topping,Daniel P. Stark,Ryan Endsley,Rychard Bouwens,S. Schouws,Renske Smit,Mauro Stefanon,Hanae Inami,Rebecca A. A. Bowler,Pascal Oesch,V. Gonzalez,Pratika Dayal,Elisabete da Cunha,H. S. B. Algera,Paul P. van der Werf,Andrea Pallottini,Laia Barrufet De Soto,Raffaella Schneider,I. De Looze,L Sommovigo,Lily R Whitler,L. Graziani,Y. Fudamoto,Andrea Ferrara +23 more
TL;DR: In this article , specific star-formation rates (sSFRs) for 40 UV-bright galaxies at z ∼ 7 − 8 observed as part of the Reionization Era Bright Emission Line Survey (REBELS) ALMA large program were derived using improved SFR calibrations and SED-based stellar masses, made possible by measurements of far infrared (FIR) continuum emission and [CII]-based spectroscopic redshifts.
References
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Planck 2015 results - XIII. Cosmological parameters
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TL;DR: In this article, the authors present a cosmological analysis based on full-mission Planck observations of temperature and polarization anisotropies of the cosmic microwave background (CMB) radiation.
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Planck 2015 results. XIII. Cosmological parameters
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TL;DR: In this paper, the authors present results based on full-mission Planck observations of temperature and polarization anisotropies of the CMB, which are consistent with the six-parameter inflationary LCDM cosmology.
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The Global Schmidt law in star forming galaxies
TL;DR: In this paper, the Schmidt law was used to model the global star formation law over the full range of gas densities and star formation rates observed in galaxies, and the results showed that the SFR scales with the ratio of the gas density to the average orbital timescale.
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The Global Schmidt Law in Star Forming Galaxies
TL;DR: In this paper, the Schmidt law was used to model the global star formation law, over the full range of gas densities and star formation rates (SFRs) observed in galaxies.
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TL;DR: In this article, the authors review the range of complementary techniques and theoretical tools that allow astronomers to map the cosmic history of star formation, heavy element production, and reionization of the Universe from the cosmic "dark ages" to the present epoch.
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