Results 51 to 60 of about 216,057 (315)
THE STELLAR DENSITY PROFILE OF THE DISTANT GALACTIC HALO [PDF]
, 2016 We use extensive gravity-sensitive DDO 51 photometry over 5100 square degrees, combined with Sloan Digital Sky Survey broadband photometry, to select a catalog of ∼4000 giant stars covering a large fraction of the high Galactic latitude sky and reaching ...
C. Slater +4 more
semanticscholar +1 more source
Milli-magnetic monopole dark matter and the survival of galactic magnetic fields
Journal of High Energy Physics, 2022 Dark sectors with Abelian gauge symmetries can interact with ordinary matter via kinetic mixing. In such scenarios, magnetic monopoles of a broken dark U(1) will appear in our sector as confined milli-magnetically charged objects under ordinary ...
Michael L. Graesser +2 more
doaj +1 more source
New detections of embedded clusters in the Galactic halo [PDF]
, 2016 Until recently it was thought that high Galactic latitude clouds were a non-star-forming ensemble. However, in a previous study we reported the discovery of two embedded clusters (ECs) far away from the Galactic plane ($\sim5$ kpc).
D. Camargo, E. Bica, C. Bonatto
semanticscholar +1 more source
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
Revisiting perfect fluid dark matter: Observational constraints from our galaxy
Physics Letters B, 2016 We revisit certain features of an assumed spherically symmetric perfect fluid dark matter halo in the light of the observed data of our galaxy, the Milky Way (MW). The idea is to apply the Faber–Visser approach of combined observations of rotation curves
Alexander A. Potapov +2 more
doaj +1 more source
Are ancient dwarf satellites the building blocks of the Galactic halo [PDF]
, 2016 According to the current cosmological cold dark matter paradigm, the Galactic halo could have been the result of the assemblage of smaller structures. Here we explore the hypothesis that the classical and ultra-faint dwarf spheroidal satellites of the ...
E. Spitoni +5 more
semanticscholar +1 more source
Chemical trends in the Galactic halo from APOGEE data [PDF]
, 2016 The galaxy formation process in the $\Lambda$-Cold Dark Matter scenario can be constrained from the analysis of stars in the Milky Way's halo system.
E. Fern'andez-Alvar +12 more
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar +8 more
wiley +1 more source
Traversable wormholes supported by dark matter and monopoles with semiclassical effects
European Physical Journal C: Particles and Fields, 2023 We present a new traversable wormhole explication of Einstein’s field equations supported by the profile of Einasto Dark Matter densities (Einasto in Trudy Inst Astrofiz Alma-Ata 51:87, 1965; PTarO 36:414, 1968; Astron Nachr 291:97, 1969) and global ...
Farook Rahaman +4 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Plasmonic photocatalytic ammonia decomposition occurs at near‐room temperature on a plasmonic Au nanocone array under visible light illumination. The nanostructure efficiently harnesses plasmonic modes, leading to increased reaction rates upon plasmon decay.
Thanh‐Lam Bui +17 more
wiley +1 more source