English
Related papers

Related papers: How galaxies lose their angular momentum

200 papers

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…

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

When only cooling processes are included, smoothed-particle hydrodynamical simulations of galaxy formation in a Cold Dark Matter hierarchical clustering scenario consistently produce collapsed objects that are deficient in angular momentum…

Astrophysics · Physics 2009-10-30 J. Sommer-Larsen , S. Gelato , H. Vedel

We develop a physical model for how galactic disks survive and/or are destroyed in interactions. Based on dynamical arguments, we show gas primarily loses angular momentum to internal torques in a merger. Gas within some characteristic…

Astrophysics · Physics 2011-02-11 Philip F. Hopkins , Thomas J. Cox , Joshua D. Younger , Lars Hernquist

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

New simulations are presented which investigate the formation of smaller groups of galaxies in a CDM like universe. The simulations follow the evolution of dark matter and gas and are performed with an SPH code adapted for the…

Astrophysics · Physics 2016-08-30 Matthias Steinmetz

We present new results on the angular momentum evolution of dark matter halos. Halos, from N-body simulations, are classified according to their mass growth histories into two categories: the accretion category contains halos whose mass has…

Astrophysics · Physics 2009-11-10 Sebastien Peirani , Roya Mohayaee , Jose A. de Freitas Pacheco

The standard picture for the formation of disk galaxies has come to face a number of problems related to angular momentum. Numerical simulations produce disks that are too small, and analytical models predict too much low angular momentum…

Astrophysics · Physics 2007-05-23 Frank C. van den Bosch

We investigate the co-evolution of the angular momentum of Milky Way-like galaxies, their circumgalactic gas, and their dark matter halos using zoom-in simulations from the Figuring Out Gas & Galaxies in Enzo (FOGGIE) suite. We examine how…

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 perform a set of non-radiative hydrodynamical simulations of merging spherical halos in order to understand the angular momentum (AM) properties of the galactic halos seen in cosmological simulations. The universal shape of AM…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 Sanjib Sharma , Matthias Steinmetz , Joss Bland-Hawthorn

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

Spherical density profiles and specific angular momentum profiles of Dark Matter halos found in cosmological N-body simulations have been measured extensively. The distribution of the total angular momentum of dark matter halos is also used…

Astrophysics · Physics 2017-08-23 Tom Abel , Rupert C. Croft , Lars Hernquist

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…

Recent theoretical studies have shown that galaxies at high redshift are fed by cold, dense gas filaments, suggesting angular momentum transport by gas differs from that by dark matter. Revisiting this issue using high-resolution…

Cosmology and Nongalactic Astrophysics · Physics 2011-06-06 Taysun Kimm , Julien Devriendt , Adrianne Slyz , Christophe Pichon , Susan A. Kassin , Yohan Dubois

We have investigated the impact of dissipationless minor galaxy mergers on the angular momentum of the remnant. Our simulations cover a range of initial orbital characteristics and the system consists of a massive galaxy with a bulge and…

Astrophysics of Galaxies · Physics 2010-06-02 Yan Qu , Paola Di Matteo , Matthew Lehnert , Wim van Driel , Chanda J. Jog

We use high-resolution cosmological hydrodynamic simulations to study the angular momentum acquisition of gaseous halos around Milky Way sized galaxies. We find that cold mode accreted gas enters a galaxy halo with ~70% more specific…

Cosmology and Nongalactic Astrophysics · Physics 2013-07-29 Kyle R. Stewart , Alyson M. Brooks , James S. Bullock , Ariyeh H. Maller , Juerg Diemand , James Wadsley , Leonidas A. Moustakas

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 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 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
‹ Prev 1 2 3 10 Next ›