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Related papers: Galaxy Formation

200 papers

Only ~10% of baryons in the universe are in the form of stars, yet most models of luminous structure formation have concentrated on the properties of the luminous stellar matter. In this paper we focus on the "flip side" of galaxy formation…

Astrophysics · Physics 2009-11-13 Richard G. Bower , Ian G. McCarthy , Andrew J. Benson

Galactic winds from star-forming galaxies are crucial to the process of galaxy formation and evolution, regulating star formation, shaping the stellar mass function and the mass-metallicity relation, and enriching the intergalactic medium…

Astrophysics of Galaxies · Physics 2018-11-05 Dong Zhang

I review the current status of Big Bang Cosmology, with emphasis on current issues in dark matter, dark energy, and galaxy formation. These topics motivate many of the current goals of experimental cosmology which range from targeting the…

Cosmology and Nongalactic Astrophysics · Physics 2017-03-29 Joseph Silk

Baryonic feedback is expected to play a key role in regulating the star formation of low-mass galaxies by producing galaxy-scale winds associated with mass-loading factors $\beta\!\sim\!1\!-\!50$. We have tested this prediction using a…

I review the evidence for the importance of feedback from massive stars at small and large scales. The feedback mechanisms include accretion luminosity, ionizing radiation, collimated outflows, and stellar winds. The good news is that…

Astrophysics · Physics 2007-11-27 Mordecai-Mark Mac Low

We present a simple heuristic model to demonstrate how feedback related to the galaxy formation process can result in a scale-dependent bias of mass versus light, even on very large scales. The model invokes the idea that galaxies form…

Astrophysics · Physics 2008-11-26 Peter Coles , Pirin Erdogdu

We investigate the physical mechanisms that shape the luminosity function. Beginning with the mass function of dark matter halos, we show how gas cooling, photoionization, feedback, merging and thermal conduction affect the shape of the…

Astrophysics · Physics 2008-11-26 A. J. Benson , R. G. Bower , C. S. Frenk , C. G. Lacey , C. M. Baugh , S. Cole

We discuss the first results from two successful simulations of galaxy formation within a cosmological volume. With over 2000 large objects forming in each we have sufficient numbers to reliably produce both galaxy correlation and…

Galaxy formation models and simulations rely on various feedback mechanisms to reproduce the observed baryonic scaling relations and galaxy morphologies. Although dwarf galaxy and giant elliptical properties can be explained using feedback…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Rok Roškar , Romain Teyssier , Oscar Agertz , Markus Wetzstein , Ben Moore

We carry out ``full-physics'' hydrodynamical simulations of galaxy formation in the normal-branch Dvali-Gabadadze-Porrati (nDGP) braneworld model using a new modified version of the {\sc Arepo} code and the IllustrisTNG galaxy formation…

Cosmology and Nongalactic Astrophysics · Physics 2021-06-15 César Hernández-Aguayo , Christian Arnold , Baojiu Li , Carlton M. Baugh

Stellar feedback plays a key role in galaxy formation by regulating star formation, driving interstellar turbulence and generating galactic scale outflows. Although modern simulations of galaxy formation can resolve scales of 10-100 pc,…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Oscar Agertz , Andrey V. Kravtsov , Samuel N. Leitner , Nickolay Y. Gnedin

The mutual feedback between star formation and nuclear activity in large spheroidal galaxies may be a key ingredient to overcome several difficulties plaguing current semi-analytic models for galaxy formation. We discuss some observational…

Astrophysics · Physics 2009-11-10 Gianfranco De Zotti , Gian Luigi Granato , Laura Silva , Luigi Danese

We have performed hydrodynamic simulations of galaxy formation in a LCDM universe. We have followed galaxy formation in a dark matter halo, chosen to have a relatively quiet recent merger history, using different models for star formation…

Astrophysics · Physics 2009-11-10 Takashi Okamoto , Vince R. Eke , Carlos S. Frenk , Adrian Jenkins

The most recent results and some of the open key questions on the evolution of early-type galaxies are reviewed in the general cosmological context of massive galaxy formation.

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Andrea Cimatti

Current ideas on the formation of the Galaxy are reviewed. Many of the observed characteristics of our Milky Way System are consistent with a scenario in which the Galaxy formed inside out, with the inner part of it evolving by rapid…

Astrophysics · Physics 2009-10-28 Sidney van den Bergh

Feedback to the interstellar medium (ISM) from ionising radiation, stellar winds and supernovae is central to regulating star formation in galaxies. Due to their low mass ($M_{*} < 10^{9}$\,M$_\odot$), dwarf galaxies are particularly…

Astrophysics of Galaxies · Physics 2022-05-17 Michelle L. M. Collins , Justin I. Read

The observed clustering of galaxies and the cross-correlation of galaxies and mass provide important constraints on both cosmology and models of galaxy formation. Even though the dissipation and feedback processes associated with galaxy…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Marcel P. van Daalen , Joop Schaye , Ian G. McCarthy , C. M. Booth , Claudio Dalla Vecchia

The goal of planet formation as a field of study is not only to provide the understanding of how planets come into existence. It is also an interdisciplinary bridge which links astronomy to geology and mineralogy. Recent observations of…

Earth and Planetary Astrophysics · Physics 2024-04-25 Christoph Mordasini , Remo Burn

Upcoming weak lensing surveys, such as LSST, EUCLID, and WFIRST, aim to measure the matter power spectrum with unprecedented accuracy. In order to fully exploit these observations, models are needed that, given a set of cosmological…

Cosmology and Nongalactic Astrophysics · Physics 2011-09-27 Marcel P. van Daalen , Joop Schaye , C. M. Booth , Claudio Dalla Vecchia

The central problem of galaxy formation is understanding the cooling and condensation of gas in dark matter halos. It is now clear that to match observations this requires further physics than the simple assumptions of single phase gas…

Astrophysics · Physics 2009-11-11 Ariyeh H. Maller