Results 151 to 160 of about 21,384 (312)

On the Blueshift of the Andromeda Galaxy

Communications of the Byurakan Astrophysical Observatory
The observed spectral shift of galaxies is usually interpreted using the Doppler effect. However, attention should be paid to other possible mechanisms of spectral shift. For example, suppose baryon matter evolves due to interaction with the carrier of dark energy.
H. A. Harutyunian, A. A. Torosyan
openaire   +1 more source

Bioinspired Oxygen‑Enriched Nanodiamonds as Electrolytic Erythrocyte Mimics for Dendrite‑Free Zinc‑Ion Batteries

Advanced Science, EarlyView.
Inspired by the cyclic transport of oxygen from the lungs (high‑O2 region) to tissues (low‑O2 region), oxygen‑enriched nanodiamond (OND) is introduced into aqueous zinc‑ion batteries as “electrolyte erythrocytes.” These OND repeatedly shuttle Zn2+ from high‑ to low‑concentration regions, dramatically flattening the Zn2+ gradient and thereby effectively
Wenhao Ding, Wuxin Bai, Zhenjie Lu, Xiangjie Guo, Zhen Wu, Jingwen Sun, Pan Xiong, Wenyao Zhang, Xiaoping Ouyang, Xin Wang, Junwu Zhu, Yongsheng Fu   +11 more
wiley   +1 more source

A Deep Chandra X-Ray Survey of a Luminous Quasar Sample at z ∼ 7

The Astrophysical Journal
We present new Chandra observations of seven luminous quasars at z > 6.5. Combined with archival Chandra observations of all other known quasars, they form nearly complete X-ray observations of all currently known z ∼ 7 quasars with M _1450 < –26.5 ...
Xiangyu Jin, Feige Wang, Jinyi Yang, Xiaohui Fan, Fuyan Bian, Jiang-Tao Li, Weizhe Liu, Yichen Liu, Jianwei Lyu, Maria Pudoka, Wei Leong Tee, Yunjing Wu, Haowen Zhang, Yongda Zhu   +13 more
doaj   +1 more source

Luminescent Chiral Molecular Glasses by Melt‐Quenching Enantiopure BINAP

Advanced Science, EarlyView.
Melt‐quenching of enantiopure BINAP yields transparent chiral molecular glasses that retain axial chirality and display blue‐shifted luminescence together with strongly enhanced circularly polarized emission with dissymmetry factors |glum| of ≈10−2.
Nuttaporn Krittametaporn, Philipp Ralle, Dorothea Dierks, Christian Nelle, Suresh K. Vasa, Pascal Kolodzeiski, Rasmus Linser, Andreas Steffen, Sebastian Henke   +8 more
wiley   +1 more source

Non‐Volatile Phase Modulation with Ultralow Energy Consumption Enabled by 2D Ferroelectric/TMD Heterostructures

Advanced Science, EarlyView.
We demonstrate a hybrid WS2/CuInP2S6/graphene heterostructure integrated on a silicon nitride microring resonator for non‐volatile optical phase modulation with ultra‐low energy consumption and low insertion loss. While CIPS alone does not provide efficient optical index modulation, the engineered proposed device structure converts ferroelctric domain ...
Lalit Singh, Shi Guo, Yuhui Yang, Sholehin Juperi, Rui Yu, Xiangxin Gong, Jeremy Leong, Sung‐Gyu Lee, Qingyun Wu, Lay Kee Ang, Sang Hoon Chae   +10 more
wiley   +1 more source

PEPSI Investigation, Retrieval, and Atlas of Numerous Giant Atmospheres (PIRANGA). II. Phase-resolved Cross-correlation Transmission Spectroscopy of KELT-20b

The Astronomical Journal
KELT-20b is a well-studied ( T _eq  = 2262 K) ultrahot Jupiter, but its multidimensional atmospheric structure remains unconstrained. We performed high-resolution cross-correlation transmission spectroscopy (HRCCTS) on a single-transit time series of ...
Calder Lenhart, Marshall C. Johnson, Ji Wang, Anusha Pai Asnodkar, Sydney Petz, Alison Duck, Klaus G. Strassmeier, Ilya Ilyin   +7 more
doaj   +1 more source

Anomalous transient blueshift in the internal stretch mode of CO/Pd(111) [PDF]

, 2022
Raúl Bombín, Alberto S. Muzas, Dino Novko, J. I. Juaristi, M. Alducin   +4 more
openalex   +1 more source

Halide‐Exchange Arrest Enables Reabsorption‐Free CsPbCl3/CsPbI3 Perovskite Core/Shell Nanocrystals

Advanced Science, EarlyView.
Achieving large Stokes shifts in perovskite nanocrystals is challenging due to halide mobility that disrupts stable core–shell structures. Using CdCl2 passivation, this work stabilizes CsPbCl3/CsPbI3 heterostructures, yielding a ≈1.2 eV Stokes shift, high quantum yield, and fast exciton transfer, enabling reabsorption‐free emitters for advanced ...
Hiba H. Karakkal, Saptarshi Chakraborty, Matteo L. Zaffalon, Jordi Llusar, Shehla Gul, Andrea Fratelli, Leonardo Poletti, Laura Lazzarini, Daniela Erminia Manno, Francesco Meinardi, Francesco Carulli, Francesca Rossi, Ivan Infante, Sergio Brovelli   +13 more
wiley   +1 more source

Kerr black hole parameters in terms of the redshift/blueshift of photons emitted by geodesic particles [PDF]

, 2015
Alfredo Herrera–Aguilar, Ulises Nucamendi   +1 more
openalex   +1 more source

Predicting convective blueshift and radial-velocity dispersion due to granulation for FGK stars

, 2023
S. Dalal, R. D. Haywood, Annelies Mortier, W. J. Chaplin, N. Meunier   +4 more
openalex   +1 more source