Results 51 to 60 of about 73,293 (324)
A new look at microlensing limits on dark matter in the Galactic halo
, 2015 The motivation for this paper is to review the limits set on the MACHO content of the Galactic halo by microlensing experiments in the direction of the Large Magellanic Cloud.
Hawkins, M. R. S.
core +1 more source
Evidence for a Triaxial Milky Way Dark Matter Halo from the Sagittarius Stellar Tidal Stream
, 2009 Observations of the lengthy tidal streams produced by the destruction of the Sagittarius dwarf spheroidal (Sgr dSph) are capable of providing strong constraints on the shape of the Galactic gravitational potential.
Bailin +34 more
core +1 more source
DESI Observations of the Andromeda Galaxy: Revealing the Immigration History of Our Nearest Neighbor
The Astrophysical Journal, 2023 We present Dark Energy Spectroscopic Instrument (DESI) observations of the inner halo of M31, which reveal the kinematics of a recent merger—a galactic immigration event—in exquisite detail.
Arjun Dey +47 more
doaj +1 more source
AXIONS AND THEIR DISTRIBUTION IN GALACTIC HALOS [PDF]
The Identification of Dark Matter, 2003 10 pages, 1 figure, invited talk at the IDM2002 conference, September 2-6, 2002 in York ...
openaire +3 more sources
EPJ Web of Conferences, 2017 We present our project to calibrate the RR Lyræ period-luminosity-metallicity relation using a sample of Galactic calibrators in the halo and globular clusters.
Marengo Massimo +7 more
doaj +1 more source
A Different Perspective on the Solid Lubrication Performance of Black Phosphorous: Friend or Foe?
Advanced Engineering Materials, EarlyView.Researchers investigate black phosphorous (BP) as a standalone solid lubricant coating through ball‐on‐disc linear‐reciprocating sliding experiments in dry conditions. Testing on different metals shows BP doesn't universally reduce friction and wear. However, it achieves 33% friction reduction on rougher iron surfaces and 23% wear reduction on aluminum.
Matteo Vezzelli +5 more
wiley +1 more source
Microlensing in Galactic Halos
arXiv: Astrophysics, 2007 10 pages, to appear in the proceedings of the I Italian-Pakistan Workshop on Relativistic Astrophysics, which will be published in the Journal Nuovo ...
openaire +3 more sources
The connection between the Galactic halo and ancient Dwarf Satellites
, 2017 We explore the hypothesis that the classical and ultra-faint dwarf spheroidal satellites of the Milky Way have been the building blocks of the Galactic halo by comparing their [O/Fe] and [Ba/Fe] versus [Fe/H] patterns with the ones observed in Galactic ...
Matteucci, F. +3 more
core +1 more source
Galactic Cosmochronometry from Radioactive Elements in the Spectra of Very Old Metal-Poor Stars [PDF]
, 2001 In a short review of neutron-capture elemental abundances in Galactic halo stars, emphasis is placed on the use of these elements to estimate the age of the Galactic halo.
Cowan, J. J., Lawler, J. E., Sneden, C.
core +3 more sources
Comparative Study of Experimental Methods for Measuring Thermal Properties of 100Cr6 Steel Powders
Advanced Engineering Materials, EarlyView.This study investigates the thermal properties of 100Cr6 steel in both bulk and powder forms. Measuring the very low thermal conductivity typically exhibited by powders poses significant challenges. To address this, two novel measurement techniques—temperature gradient and finite laser pulse response—are introduced and evaluated by comparison with the ...
Junsheng Zhuo +8 more
wiley +1 more source