Results 61 to 70 of about 612 (190)

Galaxy-Induced Transformation of Dark Matter Halos

open access: yes, 2009
Fil: Babul, Arif.
Abadi, Mario Gabriel   +4 more
openaire   +3 more sources

On the clustering of compact galaxy pairs in dark matter haloes [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2014
We analyse the clustering of photometrically selected galaxy pairs by using the halo-occupation distribution (HOD) model. We measure the angular two-point auto-correlation function, ω(θ), for galaxies and galaxy pairs in three volume-limited samples and develop an HOD to model their clustering.
Wang, Yiran, Brunner, R. J.
openaire   +2 more sources

Machine Learning the Dark Matter Halo Mass of Milky Way-Like Systems

open access: yesThe Open Journal of Astrophysics
Despite the Milky Way's proximity to us, our knowledge of its dark matter halo is fairly limited, and there is still considerable uncertainty in its halo mass.
Elaheh Hayati   +2 more
doaj   +1 more source

Testing the Collisionless Nature of Dark Matter with the Radial Acceleration Relation in Galaxy Clusters

open access: yesThe Astrophysical Journal, 2023
The radial acceleration relation (RAR) represents a tight empirical relation between the inferred total and baryonic centripetal accelerations, g _tot = GM _tot (< r )/ r ^2 and g _bar = GM _bar (< r )/ r ^2 , observed in galaxies and galaxy clusters ...
Sut-Ieng Tam   +3 more
doaj   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

open access: yesExperimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Dark Matter Halos from the Inside Out

open access: yesAdvances in Astronomy, 2011
The balance of evidence indicates that individual galaxies and groups or clusters of galaxies are embedded in enormous distributions of cold, weakly interacting dark matter. These dark matter “halos” provide the scaffolding for all luminous structures in
James E. Taylor
doaj   +1 more source

Out There No One Has a Right to Die

open access: yesBioethics, Volume 40, Issue 6, Page 565-572, July 2026.
ABSTRACT The eventual goal of space exploration is to colonize exoplanets and their moons outside our solar system. This is a dangerous and immoral endeavour. The extraterrestrial life forms encountered would be hostile, vulnerable or both, and the descendants of the original pioneers would be involuntarily exposed to hazardous conditions and ...
Matti Häyry
wiley   +1 more source

Feedback shaped the galaxy morphological sequence in presence of mergers

open access: yesThe Open Journal of Astrophysics
Bulges and disks are major structural components that define galaxy morphology. The mass ratios of bulges and disks increase statistically with the galaxy mass, with the high-mass end occupied by elliptical galaxies. Although previous theoretical studies
Masafumi Noguchi
doaj   +1 more source

The Signatures of Self-interacting Dark Matter and Subhalo Disruption on Cluster Substructure

open access: yesThe Astrophysical Journal, 2022
The abundance, distribution, and inner structure of satellites of galaxy clusters can be sensitive probes of the properties of dark matter. We run 30 cosmological zoom-in simulations with self-interacting dark matter (SIDM), with a velocity-dependent ...
Joy Bhattacharyya   +6 more
doaj   +1 more source

CFHTLenS: co-evolution of galaxies and their dark matter haloes [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2014
18 pages, MNRAS, in ...
Hudson, M.   +18 more
openaire   +4 more sources

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