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Related papers: Modelling the Deep Counts: Luminosity Evolution, D…

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Massive evolved stars can produce large amounts of dust, and far-infrared (IR) data are essential for determining the contribution of cold dust to the total dust mass. Using Herschel, we search for cold dust in three very dusty massive…

The opacity of a spiral disk due to dust absorption influences every measurement we make of it in the UV and optical. Two separate techniques directly measure the total absorption by dust in the disk: calibrated distant galaxy counts and…

Astrophysics · Physics 2008-01-21 B. W. Holwerda , R. A. Gonzalez , W. C. Keel , D. Calzetti , R. J. Allen , P. C. van de Kruit

A spectral evolution model of galaxies that includes both stellar and dust effects is newly built. xApplying the model to 22 nearby starburst galaxies, we have shown that far infrared luminosity of galaxies helps to break the age-dustiness…

Astrophysics · Physics 2009-10-31 Toshinobu Takagi , Nobuo Arimoto , Vladas Vansevicius

We present evolutionary calculations for very-low-mass stars and brown dwarfs based on synthetic spectra and non-grey atmosphere models which include dust formation and opacity, i.e. objects with $\te\simle 2800$ K. The interior of the most…

Astrophysics · Physics 2008-11-26 G. Chabrier , I. Baraffe , F. Allard , P. Hauschildt

We examine the impact of using photometric redshifts for studying the evolution of both the global galaxy luminosity function (LF) and that for different galaxy types. To this end we compare LFs obtained using photometric redshifts from the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 B. H. F. Ramos , P. S. Pellegrini , C. Benoist , L. N. da Costa , M. A. G. Maia , M. Makler , R. L. C. Ogando , F. de Simoni , A. A. Mesquita

In Paper I (Rowan-Robinson 2024), models derived in 2009 to fit mid-infrared (8-24 micron) source counts from the IRAS, ISO and Spitzer missions, were found to provide an excellent fit to deep counts at 7.7-21 mu with JWST, demonstrating…

Astrophysics of Galaxies · Physics 2025-05-01 Michael Rowan-Robinson

We analyse the physical properties of 121 SNR $\geq$ 5 sub-millimetre galaxies (SMGs) from the STUDIES 450-$\mu$m survey. We model their UV-to-radio spectral energy distributions using MAGPHYS+photo-$z$ and compare the results to similar…

We present a catalogue of 99 candidate clusters and groups of galaxies in the redshift range 0.1 < z_{phot} < 1.3 discovered in the Spitzer First Look Survey (FLS). The clusters are selected by their R - 3.6um galaxy color-magnitude…

Astrophysics · Physics 2009-11-13 Adam Muzzin , Gillian Wilson , Mark Lacy , H. K. C. Yee , S. A. Stanford

We present photometric evolution models of galaxies, in which, in addition to the stellar component, the effects of an evolving dusty interstellar medium have been included with particular care. Starting from the work of Calura, Pipino &…

Astrophysics of Galaxies · Physics 2009-11-13 A. Schurer , F. Calura , L. Silva , A. Pipino , G. L. Granato , F. Matteucci , R. Maiolino

In the current era of high-z galaxy discovery with JWST and ALMA, our ability to study the stellar populations and ISM conditions in a diverse range of galaxies at Cosmic Dawn has rapidly improved. At the same time, the need to understand…

Astrophysics of Galaxies · Physics 2024-03-05 Sidney Lower , Desika Narayanan , Chia-Yu Hu , George C. Privon

Galaxy number counts probe the evolution of galaxies over cosmic time, and serve as a valuable comparison point to theoretical models of galaxy formation. We present new galaxy number counts in eight photometric bands between 5 and 25…

Connecting the observed rest-ultraviolet (UV) luminosities of high-$z$ galaxies to their intrinsic luminosities (and thus star formation rates) requires correcting for the presence of dust. We bypass a common dust-correction approach that…

Astrophysics of Galaxies · Physics 2020-09-02 Jordan Mirocha , Charlotte Mason , Daniel P. Stark

The opacity of a spiral disk due to dust absorption influences every measurement we make of it in the UV and optical. Two separate techniques directly measure the total absorption by dust in the disk: calibrated distant galaxy counts and…

In this article we investigate the properties of the FLRW flat cosmological models in which the cosmic expansion of the Universe is affected by a dilaton dark energy (Liouville scenario). In particular, we perform a detailed study of these…

Cosmology and Nongalactic Astrophysics · Physics 2012-09-12 Spyros Basilakos , Nick E. Mavromatos , Vasiliki A. Mitsou , Manolis Plionis

I review recent advances in the determination of the cosmic history of star formation, and its relevance in our understanding of the formation of structures. I emphasize the importance of dust reprocessing in the high--z universe, as…

Astrophysics · Physics 2007-05-23 Gian Luigi Granato

We demonstrate the ability to recover morphological luminosity distributions within medium redshift clusters (z ~ 0.55) based on Hubble Space Telescope WFPC2 observations. We postulate that a detailed survey of the morphological LDs in…

Astrophysics · Physics 2007-05-23 S. P. Driver , W. J. Couch , S. C. Odewahn , R. A. Windhorst

Upcoming deep optical surveys, such as the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST), will scan the sky to unprecedented depths, detecting billions of galaxies. However, this amount of detections will lead to the…

Cosmology and Nongalactic Astrophysics · Physics 2024-12-04 Manon Ramel , Cyrille Doux , Marine Kuna

We interpret the large variety of redshift distributions of galaxies found by far-infrared and (sub-)millimeter deep surveys depending on their depth and wavelength using the B\'ethermin et al. (2012) phenomenological model of galaxy…

Astrophysics of Galaxies · Physics 2015-04-15 Matthieu Béthermin , Carlos De Breuck , Mark Sargent , Emanuele Daddi

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