Results 41 to 50 of about 1,252 (188)

The Impact of Galaxy-halo Size Relations on Galaxy Clustering Signals

open access: yesThe Open Journal of Astrophysics
Galaxies come in different sizes and morphologies, and these differences are thought to correlate with properties of their underlying dark matter halos.
Joshua B. Hill, Yao-Yuan Mao
doaj   +1 more source

Long‐read sequencing reveals genomic and epigenomic variation in the dark genome of human Alzheimer's disease

open access: yesAlzheimer's &Dementia, Volume 21, Issue 11, November 2025.
Abstract INTRODUCTION Faulty DNA repair and epigenetic regulation contribute to neurodegeneration in Alzheimer's disease. Long‐read sequencing enables analysis of “dark regions” that are difficult to study via traditional sequencing methodologies.
Paulino Ramirez   +8 more
wiley   +1 more source

From Halos to Galaxies. IX. Estimate of Halo Assembly History for SDSS Galaxy Groups

open access: yesThe Astrophysical Journal
The properties of the galaxies are tightly connected to their host halo mass and halo assembly history. Accurate measurement of the halo assembly history in observation is challenging but crucial to the understanding of galaxy formation and evolution ...
Cheqiu Lyu   +17 more
doaj   +1 more source

On the Pseudo Phase-space Density of Dark Matter Haloes and the Universality of Density Profiles

open access: yesOpen Astronomy, 2015
We examine the radial dependence of the pseudo phase-space density, ρ(r)/σ3(r), for structures on galactic and galaxy cluster scales. We find that it is approximately a power-law only in the range of halo radius resolved by current simulations (down to 0.
Del Popolo A.
doaj   +1 more source

A Method for the Quality‐Aware Automated Selection of Deployment Technologies

open access: yesSoftware: Practice and Experience, Volume 55, Issue 11, Page 1855-1876, November 2025.
ABSTRACT Domain The deployment of distributed multi‐component cloud applications typically requires a combination of multiple heterogeneous deployment technologies. A different combination of deployment technologies should be chosen due to varying deployment qualities, such as the functional suitability and reliability of the deployment technologies ...
Miles Stötzner   +7 more
wiley   +1 more source

Numerical Representation of Contemporary Atmospheric Δ14CO2: 1. Time‐Varying Global Fluxes and Atmospheric Mass Balance

open access: yesGlobal Biogeochemical Cycles, Volume 39, Issue 11, November 2025.
Abstract Precise measurements of 14C:C in atmospheric CO2 (expressed as Δ14C) are increasingly used in contemporary carbon cycle studies as a tracer of various processes, including anthropogenic CO2 emissions from combustion of fossil fuels and cement production.
John B. Miller   +2 more
wiley   +1 more source

Halo Substructure Boosts to the Signatures of Dark Matter Annihilation

open access: yesGalaxies, 2019
The presence of dark matter substructure will boost the signatures of dark matter annihilation. We review recent progress on estimates of this subhalo boost factor—a ratio of the luminosity from annihilation in the subhalos to that originating the ...
Shin’ichiro Ando   +2 more
doaj   +1 more source

Solar Flare Activity, 1937–2024: Introducing the New Hemispheric Solar Flare Index (hSFI) in the Context of 2024's Major Solar Storm Events

open access: yesSpace Weather, Volume 23, Issue 11, November 2025.
Abstract A new daily composite of the solar flare index (SFI) and the hemispherically‐resolved versions (hSFI) are presented for 1937 to 2024. The data set confirms that the northern hemisphere (NH) dominated solar flare activity during Solar Cycles 17 to 21, but that the southern hemisphere has dominated from Solar Cycle 22 to present.
V. M. Velasco Herrera   +14 more
wiley   +1 more source

Describing the Nonuniversal Galaxy Merger Timescales in IllustrisTNG: Effects of Host Halo Mass, Baryons, and Sample Selection

open access: yesThe Astrophysical Journal
Galaxy merger timescales are crucial for understanding and modeling galaxy formation in our hierarchically structured Universe. However, previous studies have reported widely varying dependencies of merger timescales on initial orbital parameters and ...
Kun Xu, Y. P. Jing
doaj   +1 more source

Microbial and bryospheric photosynthesis of boreal peatlands have peatland‐type‐specific responses to long‐term drying

open access: yesNew Phytologist, Volume 248, Issue 3, Page 1336-1350, November 2025.
Summary The impacts of drying on bryospheric photosynthesis are poorly understood. Utilising a 20‐yr‐long experiment, we quantified the effects of long‐term water level drawdown (WLD) on links between bryospheric photosynthesis, microbial community composition, decomposition, and environmental variables.
Olivia Kuuri‐Riutta   +6 more
wiley   +1 more source

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