Results 171 to 180 of about 213,451 (373)

Dark energy and dark matter in galaxy halos

Physics Letters B, 2006
7 pages, 1 figure, references added and discussion ...
openaire   +4 more sources

Improving Surface Quality of Titanium Electrodeposition from a Deep Eutectic Solvent with Organic and Inorganic Additives

Advanced Engineering Materials, EarlyView.
Herein, the electroplating of titanium from an organic solvent, ethaline, is shown. Polymer additives are shown to smooth the roughness of the film, and small molecule additives are shown to produce a near‐mirror finish to the deposited metal. Titanium electroreduction is desired for a variety of medical, electronic, and bonding applications but has ...
Steven Livers, Christopher Chancellor, Katarzyna Grubel, Diana Horangic, Riah Burnett, Bailey Byrd, Christina Arendt, Lance Hubbard   +7 more
wiley   +1 more source

Direct Natural and Artificial Aging of Aluminum Alloy AlSi10Mg After Laser Powder‐Bed Fusion

Advanced Engineering Materials, EarlyView.
Laser powder‐bed fusion of metals aluminum alloy AlSi10Mg has been directly aged. Artificial aging after natural aging is considered. The hardening potential is high for the top part of the samples as well as after short natural aging. The hardening potential is substantially reduced for the bottom part of the samples, as well as after natural aging of
Rabea Steuer, Benjamin Milkereit, Sigurd Wenner, Jette Broer, Florian Huber, Mirko Schaper, Olaf Kessler   +6 more
wiley   +1 more source

Revealing the Network of Periodic Orbits in Galaxy Models with a Prolate or an Oblate Dark Matter Halo Component

Open Astronomy, 2016
Locating the position of periodic orbits in galaxies is undoubtedly an issue of paramount importance. We reveal the position and the stability of periodic orbits of stars moving in the meridional plane (R, z) of an axially symmetric galactic model with a
Zotos Euaggelos E.
doaj   +1 more source

Dark matter halo mass functions and density profiles from mass and energy cascade. [PDF]

Sci Rep, 2023
Xu ZJ.
europepmc   +1 more source

The Case Against Warm or Self-Interacting Dark Matter as Explanations for Cores in Low Surface Brightness Galaxies

, 2010
Warm dark matter (WDM) and self-interacting dark matter (SIDM) are often motivated by the inferred cores in the dark matter halos of low surface brightness (LSB) galaxies.
Antonucci, Avila-Reese, Ceverino, Colín, Davé, de Blok, de Blok, de Blok, de Blok, Gentile, Graham, Kuzio de Naray, Kuzio de Naray, Marchesini, Martinez, McGaugh, O'Neil, Simon, Stil, Swaters   +19 more
core   +1 more source

Removing Homocoupling Defects in Alkoxy/Alkyl‐PBTTT Enhances Polymer:Fullerene Co‐Crystal Formation and Stability

Advanced Functional Materials, EarlyView.
PBTTT‐OR‐R, a C14‐alkoxy/alkyl‐PBTTT polymer derivative, is of substantial interest for optoelectronics due to its specific fullerene intercalation behavior and enhanced charge‐transfer absorption. Comparing this polymer with (S) and without (O) homocoupling defects reveals that PBTTT‐OR‐R(O) forms stable co‐crystals with PC61BM, while PBTTT‐OR‐R(S ...
Zhen Liu, Jochen Vanderspikken, Paola Mantegazza, Stefania Moro, Mouna Hamid, Sigurd Mertens, Niko Van den Brande, Laurence Lutsen, Vincent Lemaur, David Beljonne, Giovanni Costantini, Koen Vandewal, Bruno Van Mele, Wouter Maes, Bart Goderis   +14 more
wiley   +1 more source

Particle dark matter in the galactic halo

Progress in Particle and Nuclear Physics, 2011
The presence of Dark Matter (DM) particles in the galactic halo can be unambiguously pointed out in a model-independent way by exploiting the DM annual modulation signature with an apparatus of specific features placed deep underground. At present DAMA/LIBRA is running at the Gran Sasso National Laboratory of the I.N.F.N.
BERNABEI, RITA, Belli, P, Cappella, F, Cerulli, R, Dai, CJ, D'Angelo, A, He, HL, Incicchitti, A, Ma, XH, Montecchia, F, Nozzoli, F, Prosperi, D, Sheng, XD, Wang, RG, Ye, ZP   +14 more
openaire   +4 more sources

Why are some galaxy disks extremely thin?

, 2012
Some low surface brightness galaxies are known to have extremely thin stellar disks with the vertical to planar axes ratio 0.1 or less, often referred to as superthin disks.
Banerjee, Arunima, Jog, Chanda J.
core   +1 more source

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

Advanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source