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We study the co-evolution of dark matter halos, galaxies and supermassive black holes using an empirical galaxy evolution model from $z=0$ -- $10$. We demonstrate that by connecting dark matter structure evolution with simple empirical…

Astrophysics of Galaxies · Physics 2024-12-20 Christopher Boettner , Maxime Trebitsch , Pratika Dayal

In our modern understanding of galaxy formation, every galaxy forms within a dark matter halo. The formation and growth of galaxies over time is connected to the growth of the halos in which they form. The advent of large galaxy surveys as…

Astrophysics of Galaxies · Physics 2018-10-17 Risa H. Wechsler , Jeremy L. Tinker

Galaxy haloes contain fundamental clues about the galaxy formation and evolution process: hierarchical cosmological models predict haloes to be ubiquitous, and to be (at least in part) the product of past merger and/or accretion events. The…

Astrophysics of Galaxies · Physics 2017-08-02 Denija Crnojević

In the past decades, different approaches have been developed in order to link the physical properties of galaxies to the dark matter haloes in which they reside. In this review, I give a brief overview of methods, aims, and limits of these…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Gabriella De Lucia

We present a method that uses observations of galaxies to simultaneously constrain cosmological parameters and the galaxy-dark matter connection (aka halo occupation statistics). The latter describes how galaxies are distributed over dark…

Cosmology and Nongalactic Astrophysics · Physics 2012-04-05 Surhud More , Frank van den Bosch , Marcello Cacciato , Anupreeta More , Houjun Mo , Xiaohu Yang

One of the primary goals when studying galaxy formation is to understand how the luminous component of the Universe, galaxies, relates to the growth of structure which is dominated by the gravitational collapse of dark matter haloes. The…

Astrophysics of Galaxies · Physics 2023-01-25 Joseph A. O'Leary , Ulrich P. Steinwandel , Benjamin P. Moster , Nicolas Martin , Thorsten Naab

The current cosmological paradigm asserts that dark matter halos provide the gravitational scaffolding for galaxy formation through a combination of hierarchical structure formation and non-linear local (g)astrophysical processes. This…

Astrophysics of Galaxies · Physics 2024-04-18 Aldo Rodriguez-Puebla

Hierarchical models of galaxy formation now provide a much closer match to observations than they did a few years ago. The progress has been achieved by adjusting the description of baryonic processes such as star formation and…

Astrophysics · Physics 2007-05-23 Alvio Renzini

Stellar halos around galaxies retain fundamental evidence of the processes which lead to their build up. Sophisticated models of galaxy formation in a cosmological context yield quantitative predictions about various observable…

Astrophysics of Galaxies · Physics 2016-09-07 Laura Greggio , Renato Falomo , Michela Uslenghi

We present a new model to describe the galaxy-dark matter connection across cosmic time, which unlike the popular subhalo abundance matching technique is self-consistent in that it takes account of the facts that (i) subhalos are accreted…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Xiaohu Yang , H. J. Mo , Frank C. van den Bosch , Youcai Zhang , Jiaxin Han

In this review we outline the major points of ab-initio cosmological models focusing on some galaxy evolution unresolved problems. In particular our knowledge of the star formation rate which leads galaxy evolution, i.e. luminosity, colors…

Astrophysics · Physics 2009-09-29 Paola Mazzei

Understanding the connections between galaxy stellar mass, star formation rate, and dark matter halo mass represents a key goal of the theory of galaxy formation. Cosmological simulations that include hydrodynamics, physical treatments of…

Galaxies evolve via a complex interaction of numerous different physical processes, scales and components. In spite of this, overall trends often appear. Simplified models for galaxy histories can be used to search for and capture such…

Astrophysics of Galaxies · Physics 2018-05-16 J. D. Cohn

A standard paradigm is now available for the recent evolution (z < 10) of structure on galactic and larger scales. Most of the matter is assumed to be dark and dissipationless and to cluster hierarchically from gaussian initial conditions.…

Astrophysics · Physics 2007-05-23 Simon D. M. White

The information extracted from large galaxy surveys with the likes of DES, DESI, Euclid, LSST, SKA, and WFIRST will be greatly enhanced if the resultant galaxy catalogues can be cross-correlated with one another. Predicting the nature of…

Astrophysics of Galaxies · Physics 2017-08-15 Philip Bull

Our ability to extract cosmological information from galaxy surveys is limited by uncertainties in the galaxy-dark matter halo relationship for a given galaxy population, which are governed by the intricacies of galaxy formation. To…

Cosmology and Nongalactic Astrophysics · Physics 2025-10-10 Mahlet Shiferaw , Nickolas Kokron , Risa H. Wechsler

A simple, observationally-motivated model is presented for understanding how halo masses, galaxy stellar masses, and star formation rates are related, and how these relations evolve with time. The relation between halo mass and galaxy…

Astrophysics · Physics 2014-11-18 Charlie Conroy , Risa H. Wechsler

A crucial question in galaxy formation is what role new accretion has in star formation. Theoretical models have predicted a wide range of correlation strengths between halo accretion and galaxy star formation. Previously, we presented a…

Astrophysics of Galaxies · Physics 2021-11-17 Christine O'Donnell , Peter Behroozi , Surhud More

We combine the latest observationally motivated constraints on stellar properties in dark matter haloes, along with data-driven predictions for the atomic (HI) and molecular (H$_2$) gas evolution in galaxies, to derive empirical…

Astrophysics of Galaxies · Physics 2020-06-10 Hamsa Padmanabhan , Abraham Loeb

Empirical models of galaxy formation require assumptions about the correlations between galaxy and halo properties. These may be calibrated against observations or inferred from physical models such as hydrodynamical simulations. In this…

Astrophysics of Galaxies · Physics 2017-07-17 Harry Desmond , Yao-Yuan Mao , Risa Wechsler , Robert Crain , Joop Schaye
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