Results 121 to 130 of about 73,795 (320)
The Vertical Structure of the Halo Rotation [PDF]
arXiv, 2002 New GSC-II proper motions of RR Lyrae and Blue Horizontal Branch (BHB) stars near the North Galactic Pole are used to show that the Galactic Halo 5 kpc above the Plane has a significantly retrograde galactic rotation.
arxiv
Advanced Optical Materials, EarlyView.Lowering the barrier for researchers to explore polariton physics: A fully solution‐processed dielectric polariton microcavity incorporating Rhodamine 6G with tunable Rabi splitting up to 400 meV and photoluminescence. Abstract Planar microcavity polaritons have recently emerged as a promising technology for improving several performance ...
Hassan A. Qureshi +7 more
wiley +1 more source
Hydromagnetic Stability of a Galactic Slab with Halo [PDF]
, 1969 Malini Aggarwal, Sangeeta Talwar
openalex +1 more source
Advanced Optical Materials, EarlyView.Curcuminoid boron difluoride dyes containing triphenylamine units are prepared and their photophysical and electrochemical properties are investigated. These new light‐emitting dyes are used in organic light‐emitting diodes (OLEDs) emitting at 800 nm with 1% external quantum efficiency, and show low threshold amplified spontaneous emission in thin ...
Anthony D'Aléo +11 more
wiley +1 more source
On the lithium abundance of the visual binary components ξ Boo A (G8V) and ξ Boo B (K5V)
Astronomische Nachrichten, Volume 343, Issue 9-10, November-December 2022., 2022 Abstract A spectroscopic investigation of the lithium resonance doublet in ξ Boo A and ξ Boo B in terms of both abundance and isotopic ratio is presented. We obtained new R = 130,000 spectra with a signal‐to‐noise ratio (S/N) per pixel of up to 3200 using the 11.8 m LBT and PEPSI.
Klaus G. Strassmeier, Matthias Steffen
wiley +1 more source
Analysis of repulsive central universal force field on solar and galactic dynamics
Open Physics, 2019 Recent astrophysical observations hint toward the need for an extended theory of gravity to explain puzzles presented by the standard cosmological model such as the need for dark matter and dark energy to understand the dynamics of the cosmos. This paper
Barghout Kamal
doaj +1 more source
Chemical Properties and Age of the Components of the Galactic Halo [PDF]
, 1977 V. Castellani
openalex +1 more source
The Galactic Halo and CDM [PDF]
Symposium - International Astronomical Union, 2004 This paper reviews the available information on the central density distribution and shape of the Milky Way's halo. At present, there is no strong evidence that the Milky Way's halo properties conflict with the predictions of cold dark matter (CDM): a primordial central power law cusp can be accommodated by the observations, and the current constraints
openaire +1 more source
Photochromic Organic–Inorganic Material for Focusable Adaptive Lenses Fabrication
Advanced Photonics Research, EarlyView.This study investigates a zirconia‐based hybrid organic–inorganic material incorporating dithienylethene molecules for adaptive optics. It offers excellent photochromic properties, thermal stability, and adjustable thickness, enabling effective refractive index modulation.
Giorgia Franchin +6 more
wiley +1 more source
The Magellanic Stream as a probe of the galactic halo [PDF]
, 1979 R. J. Cohen, R. D. Davies, I. F. Mirabel
openalex +1 more source