English
Related papers

Related papers: Bulges versus disks: the evolution of angular mome…

200 papers

Galaxy formation in the current cosmological paradigm is a very complex process in which inflows, outflows, interactions and mergers are common events. These processes can redistribute the angular momentum content of baryons. Recent…

Astrophysics of Galaxies · Physics 2015-08-31 Susana Pedrosa , Patricia Tissera

The evolution and distribution of the angular momentum of dark matter (DM) halos have been discussed in several studies over the past decades. In particular, the idea arose that angular momentum conservation should allow to infer the total…

Astrophysics of Galaxies · Physics 2015-10-14 A. F. Teklu , R. -S. Remus , K. Dolag , A. M. Beck , A. Burkert , A. S. Schmidt , F. Schulze , L. K. Steinborn

We study the present-day connection between galaxy morphology and angular momentum using the {\sc Dark Sage} semi-analytic model of galaxy formation. For galaxies between $ 10^{11}-10^{12} \mathrm{M}_{\odot}$ in stellar mass, the model…

Astrophysics of Galaxies · Physics 2024-11-21 Antonio J. Porras-Valverde , Kelly Holley-Bockelmann , Andreas A. Berlind , Adam R. H. Stevens

We investigate the angular momentum evolution of four disk galaxies residing in Milky Way-sized halos formed in cosmological zoom-in simulations with various sub-grid physics and merging histories. We decompose these galaxies kinematically…

Astrophysics of Galaxies · Physics 2017-02-08 Aleksandra Sokolowska , Pedro R. Capelo , S. Michael Fall , Lucio Mayer , Sijing Shen , Silvia Bonoli

We review progress in understanding the formation of galactic disks in the standard cosmogonic scenario involving gravitational clustering of baryons and dark matter and dissipative collapse of the baryons. This scenario accounts remarkably…

Astrophysics · Physics 2007-05-23 S. Michael Fall

We investigate the influence of the cooling epoch on the formation of galaxies in a cold dark matter dominated universe. Isolated haloes, with circular speeds typical of spiral galaxies, have been selected from a low resolution numerical…

Astrophysics · Physics 2015-06-24 M. L. Weil , V. R. Eke , G. Efstathiou

We study the dynamics of galactic disk formation and evolution in 'realistic' LambdaCDM haloes with idealized baryonic initial conditions. We add rotating spheres of hot gas at z=1.3 to two fully cosmological dark-matter-only halo…

Astrophysics of Galaxies · Physics 2015-06-04 Michael Aumer , Simon D. M. White

The importance of angular momentum in regulating the sizes of galactic disks and by this their star formation history is highlighted. Tidal torques and accretion of satellites in principle provide enough angular momentum to form disks with…

Astrophysics · Physics 2016-01-27 Andreas Burkert , Elena D'Onghia

The formation of galactic discs and the efficiency of star formation within them are issues central to our understanding of galaxy formation. We have developed a detailed and versatile model of disc formation which combines the strengths of…

Astrophysics · Physics 2011-11-09 M. J. Stringer , A. J. Benson

In both observed and simulated galaxies, disk morphologies become more prevalent at higher masses and lower redshifts. To elucidate the physical origin of this trend, we develop a simple analytical model in which galaxy morphology is…

Astrophysics of Galaxies · Physics 2026-02-06 Vadim A. Semenov

The formation of disk galaxies is one of the most outstanding problems in modern astrophysics and cosmology. We review the progress made by numerical simulations carried out on large parallel supercomputers. Recent progress stems from a…

Astrophysics · Physics 2010-10-28 Lucio Mayer , Fabio Governato , Tobias Kaufmann

We explore the co-evolution of the specific angular momentum of dark matter haloes and the cold baryons that comprise the galaxies within. We study over two thousand central galaxies within the reference cosmological hydrodynamical…

We use non-radiative N-body/SPH simulations of structure formation in a LCDM cosmology to compare the angular momentum distributions of dark matter and gas in a large sample of halos. We show that the two components have identical spin…

We combine constraints on the galaxy-dark matter connection with structural and dynamical scaling relations to investigate the angular momentum content of disc galaxies. For haloes with masses in the interval 10^{11.3} < M_vir/M_sun <…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Aaron A. Dutton , Frank C. van den Bosch

The standard disc formation scenario postulates that disc forms as the gas cools and flows into the centre of the dark matter halo, conserving the specific angular momentum. Major mergers have been shown to be able to destroy or highly…

Astrophysics of Galaxies · Physics 2014-09-05 S. E. Pedrosa , P. B. Tissera , M. E. De Rossi

We perform controlled N-Body/SPH simulations of disk galaxy formation by cooling a rotating gaseous mass distribution inside equilibrium cuspy spherical and triaxial dark matter halos. We systematically study the angular momentum transport…

Astrophysics · Physics 2008-11-26 Tobias Kaufmann , Lucio Mayer , James Wadsley , Joachim Stadel , Ben Moore

Observed galactic disks have specific angular momenta similar to expectations for typical dark matter halos in $\Lambda$CDM. Cosmological hydrodynamical simulations have recently reproduced this similarity in large galaxy samples by…

Astrophysics of Galaxies · Physics 2017-05-24 Daniel DeFelippis , Shy Genel , Greg Bryan , S. Michael Fall

We study the angular momentum profiles both for dark matter and for gas within virialized halos, using a statistical sample of halos drawn from cosmological hydrodynamics simulations. Three simulations have been analyzed, one is the…

Astrophysics · Physics 2009-11-10 D. N. Chen , Y. P. Jing , Kohji Yoshikawa

Until a decade ago, galaxy formation simulations were unable to simultaneously reproduce the observed angular momentum (AM) of galaxy disks and bulges. Improvements in the interstellar medium and stellar feedback modelling, together with…

Astrophysics of Galaxies · Physics 2018-11-01 Claudia del P. Lagos

Galaxy formation models typically assume that the size and rotation speed of galaxy disks are largely dictated by the mass, concentration, and spin of their surrounding dark matter haloes. Equally important, however, are the fraction of…

Cosmology and Nongalactic Astrophysics · Physics 2009-10-06 Laura V. Sales , Julio F. Navarro , Joop Schaye , Claudio Dalla Vecchia , Volker Springel , Marcel R. Haas , Amina Helmi
‹ Prev 1 2 3 10 Next ›