Results 41 to 50 of about 565,196 (354)

Cosmological Simulation for Fuzzy Dark Matter Model

open access: yesFrontiers in Astronomy and Space Sciences, 2019
Fuzzy Dark Matter (FDM), motivated by string theory, has recently become a hot candidate for dark matter. The rest mass of FDM is believed to be ~10−22eV and the corresponding de-Broglie wave length is ~1kpc. Therefore, the quantum effect of FDM plays an
Jiajun Zhang, Hantao Liu, Ming-Chung Chu
doaj   +1 more source

Minimizing the stochasticity of halos in large-scale structure surveys [PDF]

open access: yes, 2010
In recent work (Seljak, Hamaus and Desjacques 2009) it was found that weighting central halo galaxies by halo mass can significantly suppress their stochasticity relative to the dark matter, well below the Poisson model expectation.
N. Gehrels   +9 more
core   +1 more source

Direct Measurement of the HI-Halo Mass Relation through Stacking [PDF]

open access: yes, 2020
We present accurate measurements of the total HI mass in dark matter halos of different masses at z ~ 0, by stacking the HI spectra of entire groups from the Arecibo Fast Legacy ALFA Survey. The halos are selected from the optical galaxy group catalog constructed from the Sloan Digital Sky Survey DR7 Main Galaxy sample, with reliable measurements of ...
arxiv   +1 more source

Effective field theory description of halo nuclei [PDF]

open access: yes, 2017
Nuclear halos emerge as new degrees of freedom near the neutron and proton driplines. They consist of a core and one or a few nucleons which spend most of their time in the classically-forbidden region outside the range of the interaction.
H. Hammer, C. Ji, D. Phillips
semanticscholar   +1 more source

Relationships between area-level socioeconomic status and urbanization with active transportation, independent mobility, outdoor time, and physical activity among Canadian children

open access: yesBMC Public Health, 2019
Background Active transportation (AT), independent mobility (IM), and outdoor time are promising ways to increase children’s physical activity. However, in order to create interventions to increase those forms of physical activity, it is important to ...
Christine Delisle Nyström   +8 more
doaj   +1 more source

Deep radio observations of the radio halo of the bullet cluster 1E 0657-55.8 [PDF]

open access: yes, 2014
We present deep 1.1-3.1 GHz Australia Telescope Compact Array observations of the radio halo of the bullet cluster, 1E 0657-55.8. In comparison to existing images of this radio halo the detection in our images is at higher significance. The radio halo is
Brown, Shea   +5 more
core   +3 more sources

The Settling of Warped Disks in Oblate Dark Halos [PDF]

open access: yesAstrophys.J. 442 (1995) 492, 1994
When a galaxy forms, the disk may initially be tilted with respect to a flattened dark halo. The misalignment between the disk and the halo is a common explanation for galactic disk warps, since in this state, disks have precessing bending modes which resemble real warps.
arxiv   +1 more source

Core Deformation in the Two-Neutron Halo Nucleus, 11Li by Using Faddeev Equation [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2017
The properties of the two-neutron halo nucleus 11Li are investigated. The calculations are performed using the Faddeev equation with core excitation and Woods-Saxon potential. The core has been deformed and allowed to be excited to first 2+ state.
Waleed S. Hwash
doaj   +1 more source

Characterization, Antibiofilm, and Depolymerizing Activity of Two Phages Active on Carbapenem-Resistant Acinetobacter baumannii

open access: yesFrontiers in Medicine, 2020
Acinetobacter baumannii is a leading cause of healthcare-associated infections worldwide. Its various intrinsic and acquired mechanisms of antibiotic resistance make the therapeutic challenge even more serious. One of the promising alternative treatments
Goran Vukotic   +10 more
doaj   +1 more source

Gaia Reveals a Metal-rich, in situ Component of the Local Stellar Halo [PDF]

open access: yes, 2017
We use the first Gaia data release, combined with the RAVE and APOGEE spectroscopic surveys, to investigate the origin of halo stars within kpc from the Sun.
A. Bonaca   +4 more
semanticscholar   +1 more source

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