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Early results from the JWST observations have reported a surprisingly high number of UV-bright galaxies at $z \geq 10$, which appears to challenge the theoretical predictions from standard galaxy formation models in the $\Lambda$CDM…

Astrophysics of Galaxies · Physics 2024-07-30 Anirban Chakraborty , Tirthankar Roy Choudhury

[Abridged] We present a comprehensive investigation of the cosmological evolution of the luminosity function (LF) of galaxies and active galactic nuclei (AGN) in the infrared (IR). Based on the observed dichotomy in the ages of stellar…

Previous observational studies of the infrared (IR)-radio relation out to high redshift employed any detectable star forming systems at a given redshift within the restricted area of cosmological survey fields. Consequently, the evolution…

We explore the evolution of the SCUBA sub-mm galaxy population using Monte Carlo simulations to generate synthetic sub-mm/radio color magnitude diagrams. To represent the local distribution of observed dust properties, we use a local…

Astrophysics · Physics 2007-05-23 S. C. Chapman , G. F. Lewis , G. Helou

We present deep wide-field K-band observations of six Hyperluminous Infrared Galaxies (HLIRGs) spanning a redshift range 0.44<z<1.55. The sample resides in a wide variety of environments, from the field to Abell 2 clusters, with a mean…

Astrophysics · Physics 2009-11-10 D. Farrah , J. Geach , M. Fox , S. Serjeant , S. Oliver , A. Verma , A. Kaviani , M. Rowan-Robinson

We thoroughly explore the properties of (sub)-millimeter (mm) selected galaxies (SMGs) in the Shark semi-analytic model of galaxy formation. Compared to observations, the predicted number counts at wavelengths (lambda) 0.6-2mm and redshift…

The Cosmic Background due to the integrated radiation from galaxies over the whole life of the Universe is reviewed. We find that this background is well constrained by measurements. The total power in the background is in the range 60-93…

Astrophysics · Physics 2007-05-23 R. Gispert , G. Lagache , J. L. Puget

We model fluctuations in the Cosmic Infrared Background (CIB) arising from known galaxy populations using 233 measured UV, optical and NIR luminosity functions (LF) from a variety of surveys spanning a wide range of redshifts. We compare…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Kari Helgason , Massimo Ricotti , Alexander Kashlinsky

Several lines of evidence and theoretical arguments suggest that a large fraction of starlight is absorbed by interstellar dust and re-radiated at far-IR wavelengths, particularly during early evolutionary phases of early type galaxies,…

Astrophysics · Physics 2007-05-23 G. De Zotti , P. Mazzei , A. Franceschini , L. Danese

We make a detailed investigation of the properties of Lyman-break galaxies (LBGs) in the LambdaCDM model. We present predictions for two published variants of the GALFORM semi-analytical model: the Baugh et al. (2005) model, which has star…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 C. G. Lacey , C. M. Baugh , C. S. Frenk , A. J. Benson , .

We are exploring galaxy evolution in low density environments exploiting smooth particle hydrodynamic simulations including chemo-photometric implementation. From a large grid of simulations of galaxy encounters and mergers starting from…

Astrophysics of Galaxies · Physics 2020-01-08 Paola Mazzei , Roberto Rampazzo , Antonietta Marino , Ginevra Trinchieri , Michela Uslenghi , Anna Wolter

The surface density of submillimeter (sub-mm) galaxies as a function of flux, usually termed the source number counts, constrains models of the evolution of the density and luminosity of starburst galaxies. At the faint end of the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 M. Zemcov , A. Blain , M. Halpern , L. Levenson

We model the galaxy formation in a series of high-resolution N-body simulations using the semi-analytical approach. Unlike many earlier investigations based on semi-analytical models, we make use of the subhalos resolved in the $N$-body…

Astrophysics · Physics 2009-10-19 X. Kang , Y. P. Jing , H. J. Mo , G. Boerner

[abridged] At the end of the Spitzer cryogenic mission and the onset of the Herschel era, we review our current knowledge on galaxy evolution at IR wavelengths. We also develop new tools for the analysis of background fluctuations to…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-13 Alberto Franceschini , Giulia Rodighiero , Mattia Vaccari , Stefano Berta , Lucia Marchetti , Gabriele Mainetti

We summarise the main results on the faint submillimeter (submm) galaxy population which have come from the SCUBA Cluster Lens Survey. We detail our current understanding of the characteristics of these submm-selected galaxies across…

Astrophysics · Physics 2017-08-23 Ian Smail , Rob Ivison , Andrew Blain , Jean-Paul Kneib

A simple and versatile parameterized approach to the star formation history allows a quantitative investigation of the constraints from far infrared and submillimetre counts and background intensity measurements. The models include four…

Astrophysics · Physics 2007-05-23 M. Rowan-Robinson

We present the most accurate measurement to date of cosmological evolution of the near-infrared galaxy luminosity function, from the local Universe out to z~4. The analysis is based on a large and highly complete sample of galaxies selected…

Astrophysics · Physics 2015-05-13 M. Cirasuolo , R. J. McLure , J. S. Dunlop , O. Almaini , S. Foucaud , C. Simpson

Star-forming galaxies are a highly biased tracer of the underlying dark matter density field. Their clustering can be studied through the cosmic infrared background anisotropies. These anisotropies have been measured from 100 \mum to 2 mm…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Aurélie Pénin , Olivier Doré , Guilaine Lagache , Matthieu Béthermin

[Abridged] SFGs are the dominant population in the faint radio sky, corresponding to flux densities at 1.4 GHz $< 0.1$ mJy. A panchromatic approach is essential for selecting SFGs in the radio band and understanding star formation processes…

Astrophysics of Galaxies · Physics 2025-05-07 M. Giulietti , I. Prandoni , M. Bonato , L. Bisigello , M. Bondi , G. Gandolfi , M. Massardi , L. Boco , H. J. A. Rottgering , A. Lapi

A major recent development in extragalactic astronomy has been the discovery of a population of galaxies that are luminous at submillimetre wavelengths. Estimates of their spectral energy distributions suggest that these galaxies are the…

Astrophysics · Physics 2009-10-31 Neil Trentham , A. W. Blain , Jeff Goldader