Results 61 to 70 of about 113,786 (346)

Are there MACHOs in the Milky Way halo? [PDF]

, 2002
Microlensing searches aim to detect compact halo dark matter via its gravitational lensing effect on stars within the Large Magellanic Cloud. The most recent results have led to the claim that roughly one fifth of the galactic halo dark matter may be in ...
A. M. Green, Alcock, Alcock, Alcock, Alcock, Alcock, Alcock, Alcock, Alcock, Aubourg, Bennett, Bennett, de Rujula, Evans, Gyuk, Gyuk, Honma, K. Jedamzik, Lasserre, Milsztajn, Milsztajn, Oppenheimer, Paczynski, Salati, Widrow, Wu, Zhao   +26 more
core   +2 more sources

The impact of baryons on dark matter haloes [PDF]

Monthly Notices of the Royal Astronomical Society: Letters, 2009
Abstract We analyse the dark matter (DM) distribution in an ≈ 1012 M⊙ halo extracted from a simulation consistent with the concordance cosmology, where the physics regulating the transformation of gas into stars was allowed to change producing galaxies with different morphologies. Although the DM profiles get more concentrated as baryons
Pedrosa, Susana Elizabeth, Tissera, Patricia Beatriz, Scannapieco, Cecilia   +2 more
openaire   +4 more sources

Linked dimers of the AAA+ ATPase Msp1 reveal energetic demands and mechanistic plasticity for substrate extraction from lipid bilayers

FEBS Letters, EarlyView.
Cells must clear mislocalized or faulty proteins from membranes to survive. The AAA+ ATPase Msp1 performs this task, but dissecting how its six subunits work together is challenging. We engineered linked dimers with varied numbers of functional subunits to reveal how Msp1 subunits cooperate and use energy to extract proteins from the lipid bilayer ...
Deepika Gaur, Brian Acquaviva, Baylee A. Smith, Nathan Walker, Isabella Walter, Matthew L. Wohlever   +5 more
wiley   +1 more source

Study of wormhole stability in the framework of black hole surrounded by the pseudo-isothermal dark matter halo

European Physical Journal C: Particles and Fields
This work is devoted to exploring the formation and stability of thin-shell wormholes developed through the two similar copies of black holes bounded by the pseudo-isothermal dark matter halo. It is found that the horizon radius of a black hole decreases
Faisal Javed, Arfa Waseem, Ghulam Fatima, Bander Almutairi   +3 more
doaj   +1 more source

Dark matter–radiation interactions: the impact on dark matter haloes [PDF]

Monthly Notices of the Royal Astronomical Society, 2015
Interactions between dark matter (DM) and radiation (photons or neutrinos) in the early Universe suppress density fluctuations on small mass scales. Here we perform a thorough analysis of structure formation in the fully non-linear regime using N-body simulations for models with DM-radiation interactions and compare the results to a traditional ...
Silvia Pascoli, Céline Bœhm, Céline Bœhm, Carlton M. Baugh, Ryan J. Wilkinson, J. A. Schewtschenko   +5 more
openaire   +5 more sources

Mitochondrial fatty acid oxidation is stimulated by red light irradiation

FEBS Letters, EarlyView.
Light at different wavelengths has distinct effects on keratinocyte viability and metabolism. UVA light abrogates metabolic fluxes. Blue and green light have no effect on metabolic fluxes, while red light enhanced oxidative phosphorylation by promoting fatty acid oxidation. Keratinocytes are the primary constituents of sunlight‐exposed epidermis.
Manuel Alejandro Herrera, Camille C. Caldeira da Silva, Maiza Von Denz, Mauricio S. Baptista, Alicia J. Kowaltowski   +4 more
wiley   +1 more source

Axion dark matter searches from the standard halo over the tidal stream to the big flow

Journal of High Energy Physics
The sensitivity of axion dark matter searches depends on the signal window that results from the velocity dispersion of axion dark matter. Since the ratio of signal windows is about 6500 between the standard halo and the big flow axion dark matter, each ...
Andrew K. Yi, Byeong Rok Ko
doaj   +1 more source

Modeling the Galaxy Distribution in Clusters using Halo Cores

The Open Journal of Astrophysics, 2023
The galaxy distribution in dark matter-dominated halos is expected to approximately trace the details of the underlying dark matter substructure. In this paper we introduce halo "core-tracking" as a way to efficiently follow the small-scale substructure ...
Danila Korytov, Esteban Rangel, Lindsey Bleem, Nicholas Frontiere, Salman Habib, Katrin Heitmann, Joseph Hollowed, Adrian Pope   +7 more
doaj   +1 more source

Dissipative dark matter halos: The steady state solution

, 2018
Dissipative dark matter, where dark matter particle properties closely resemble familiar baryonic matter, is considered. Mirror dark matter, which arises from an isomorphic hidden sector, is a specific and theoretically constrained scenario.
Foot, R.
core   +1 more source

The Blackhole-Dark Matter Halo Connection [PDF]

, 2015
We explore the connection between the central supermassive blackholes (SMBH) in galaxies and the dark matter halo through the relation between the masses of the SMBHs and the maximum circular velocities of the host galaxies, as well as the relationship ...
Akl, Maya Abi, Chahine, Gilbert, Sabra, Bassem M., Saliba, Charbel   +3 more
core   +3 more sources