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This paper uses numerical simulations to test the formation time distribution of dark matter haloes predicted by the analytic excursion set approaches. The formation time distribution is closely linked to the conditional mass function and…

Astrophysics · Physics 2009-11-10 W. P. Lin , Y. P. Jing , Lihwai Lin

The abundance of massive dark matter halos hosting galaxy clusters provides an important test of the masses of relic neutrino species. The dominant effect of neutrino mass is to lower the typical amplitude of density perturbations that…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-03 Marilena LoVerde

Background: The halo effective field theory (Halo-EFT) provides a very efficient description of loosely-bound nuclei in models of reaction. It offers a very systematical ranking of the significance of nuclear-structure observables in…

Nuclear Theory · Physics 2025-04-22 L. -P. Kubushishi , P. Capel

Cosmic voids, the underdense regions in the universe, are particularly sensitive to diffuse density components such as cosmic neutrinos. This sensitivity is enhanced by the match between void sizes and the free-streaming scale of massive…

Cosmology and Nongalactic Astrophysics · Physics 2020-11-04 Gemma Zhang , Zack Li , Jia Liu , David N. Spergel , Christina D. Kreisch , Alice Pisani , Benjamin D. Wandelt

Data for the scattering of 6He, 8He, 9Li, and 11Li from hydrogen are analyzed within a fully microscopic folding model of proton-nucleus scattering. Current data suggest that of these only 11Li has a noticeable halo. For 6He, we have also…

Nuclear Theory · Physics 2009-10-31 S. Karataglidis , P. J. Dortmans , K. Amos , C. Bennhold

In this paper I generalize the halo model for the clustering of dark matter in order to produce the power spectra of the two main baryonic matter components in the Universe: stars and hot gas. As a natural extension, this can be also used…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-18 Cosimo Fedeli

The comparison between dynamical mass and lensing mass provides a targeted test for a wide range of modified gravity models. In our previous paper we showed, through numerical simulations, that the measurement of the line-of-sight velocity…

Cosmology and Nongalactic Astrophysics · Physics 2013-08-05 Tsz Yan Lam , Fabian Schmidt , Takahiro Nishimichi , Masahiro Takada

Quantitative modeling of the spectro-spatial distributions of energetic electrons and protons in galactic halos is needed in order to determine their interactions with the local plasma and radiation fields, and also to estimate their…

High Energy Astrophysical Phenomena · Physics 2019-04-17 Yoel Rephaeli , Sharon Sadeh

The halo factor is one of the experimental data which describes a distribution of neutrons in nuclear periphery. In the presented paper we use Skyrme-Hartree (SH) and the Relativistic Mean Field (RMF) models and we calculate the neutron…

Nuclear Theory · Physics 2009-11-10 A. Baran , P. Mierzynski

In the standard model of cosmic structure formation, dark matter haloes form by gravitational instability. The process is hierarchical: smaller systems collapse earlier, and later merge to form larger haloes. The galaxy clusters, hosted by…

Astrophysics · Physics 2009-11-13 Carlo Giocoli , Lidia Pieri , Giuseppe Tormen

We investigate the spatial structure of the two-neutron wave function in the Borromean nucleus $^{11}$Li, using a three-body model of $^9$Li $+n+n$, which includes many-body correlations stemming from the Pauli principle. The behavior of…

Nuclear Theory · Physics 2008-11-26 K. Hagino , H. Sagawa , J. Carbonell , P. Schuck

(Abridged) We present a semi-analytic model for Cold Dark Matter halo substructure that can be used as a framework for studying galaxy formation and an ingredient in halo models of galaxy clustering. We perform a comprehensive comparison of…

Accurate modelling of the one-to-two halo transition has long been difficult to achieve. We demonstrate that physically motivated halo definitions that respect the bimodal phase-space distribution of dark matter particles near halos…

Cosmology and Nongalactic Astrophysics · Physics 2024-09-11 Edgar M. Salazar , Eduardo Rozo , Rafael García , Nickolas Kokron , Susmita Adhikari , Benedikt Diemer , Calvin Osinga

Among the most fundamental properties of a dark matter halo is its density profile. Motivated by the recent proposal by Garc\'ia et al. [R. Garc\'ia et. al., MNRAS 521, 2464 (2023)] to define a dynamical halo as the collection of orbiting…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-02 Tristen Shields , Edgar M. Salazar , Eduardo Rozo , Aakanksha Adya , Calvin Osinga , Ze'ev Vladimir

The phenomenon of core excitation in the breakup of a two-body halo nucleus is investigated. We show that this effect plays a significant role in the reaction dynamics and, furthermore, its interference with the valence excitation mechanism…

Nuclear Theory · Physics 2012-12-10 A. M. Moro , J. A. Lay

The optical potential of halo and weakly bound nuclei has a long range part due to the coupling to breakup that damps the elastic scattering angular distributions. In order to describe correctly the breakup channel in the case of scattering…

Nuclear Theory · Physics 2009-11-10 Awad A. Ibraheem , Angela Bonaccorso

In this contribution we present some recent results about neutron halos in deformed nuclei. A deformed relativistic Hartree-Bogoliubov theory in continuum has been developed and the halo phenomenon in deformed weakly bound nuclei is…

Nuclear Theory · Physics 2012-11-07 Lulu Li , Jie Meng , P. Ring , En-Guang Zhao , Shan-Gui Zhou

We review the most recent evidence for the amazing properties of the density distribution of dark matter around spiral galaxies. Their rotation curves, coadded according to the galaxy luminosity, conform to an universal profile which can be…

Astrophysics · Physics 2007-05-23 P. Salucci , A. Borriello

The halo shape plays a central role in determining important observational properties of the haloes such as mass, concentration and lensing cross-sections. The triaxiality of lensing galaxy clusters has a substantial impact on the…

Cosmology and Nongalactic Astrophysics · Physics 2017-03-22 Jesús Vega-Ferrero , Gustavo Yepes , Stefan Gottlöber

A microscopic self-consistent triaxial relativistic Hartree-Bogoliubov theory in continuum (TRHBc), which simultaneously takes into account the triaxiality and pairing correlations as well as continuum effects, is established and applied to…

Nuclear Theory · Physics 2022-12-13 K. Y. Zhang , S. Q. Zhang , J. Meng
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