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Related papers: Connecting Angular Momentum and Galactic Dynamics:…

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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…

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

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 investigate the evolution of angular momentum in simulations of galaxy formation in a cold dark matter universe. We analyse two model galaxies generated in the N-body/hydrodynamic simulations of Okamoto et al. Starting from identical…

Astrophysics · Physics 2010-12-08 J. Zavala , T. Okamoto , Carlos S. Frenk

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 compute the specific angular momentum distributions of a sample of low mass disk galaxies observed by Swaters. We compare these distributions to those of dark matter haloes obtained by Bullock et al. from high resolution N-body…

Astrophysics · Physics 2009-11-06 Frank C. van den Bosch , Andreas Burkert , Rob A. Swaters

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

(Abridged) We report results of a series of non radiative N-body/SPH simulations in a LCDM cosmology. We find that the spin of the baryonic component is on average larger than that of the dark matter (DM) component and we find this effect…

Astrophysics · Physics 2009-11-10 Sanjib Sharma , Matthias Steinmetz

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 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

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

Studies of galactic bars have primarily focused on stellar bars, since they can be directly observed through ultraviolet to infrared wavebands. Cosmological as well as idealised simulations reveal that the dark matter (DM) haloes interact…

Astrophysics of Galaxies · Physics 2026-05-27 Shouvik Ghosh , Sandeep Kumar Kataria

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

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

We have analyzed high resolution N-body simulations of dark matter halos, focusing specifically on the evolution of angular momentum. We find that not only is individual particle angular momentum not conserved, but the angular momentum of…

Astrophysics of Galaxies · Physics 2010-12-10 Laura G. Book , Alyson Brooks , Annika H. G. Peter , Andrew J. Benson , Fabio Governato

Despite being a fundamental property of galaxies that dictates the form of the potential, the 3D shape is intrinsically difficult to determine from observations. The improving quality of triaxial modeling methods in recent years has made it…

Astrophysics of Galaxies · Physics 2024-10-16 Lucas M. Valenzuela , Rhea-Silvia Remus , Klaus Dolag , Benjamin A. Seidel

We compute the angular momentum, the spin parameter and the related distribution function for Dark Matter halos hosting a spiral galaxy. We base on scaling laws, inferred from observations, that link the properties of the galaxy to those of…

Astrophysics · Physics 2009-11-13 Chiara Tonini , Andrea Lapi , Francesco Shankar , Paolo Salucci

Cold Dark Matter with a large cosmological constant (LambdaCDM) appears to fit large scale structure observations well. Of the possible small scale problems, the Central Cusps and Too Many Satellites problems now appear to be at least…

Astrophysics · Physics 2007-05-23 Joel R. Primack

We investigate the magnitude and internal alignment of the angular momentum of cold dark matter haloes in simulations with and without baryons. We analyse the cumulative angular momentum profiles of hundreds of thousands of haloes in the…

Cosmology and Nongalactic Astrophysics · Physics 2016-07-07 Philip Bett , Vincent Eke , Carlos S. Frenk , Adrian Jenkins , Takashi Okamoto
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