Results 211 to 220 of about 4,302,843 (380)

RVSNUpy: A Python Package for Spectroscopic Redshift Measurement Based on Cross Correlation

The Astronomical Journal
We introduce RVSNUpy , a new Python package designed to measure spectroscopic redshifts. Based on inverse-variance-weighted cross correlation, RVSNUpy determines redshifts by comparing observed spectra with various rest-frame template spectra.
Taewan Kim, Jubee Sohn, Ho Seong Hwang
doaj   +1 more source

Challenges of II‐VI and III‐V Blue Quantum Dot Light‐Emitting Diodes

Advanced Materials, EarlyView.
Blue‐emitting electroluminescent quantum dot light‐emitting diodes (QD‐LEDs) face critical challenges that limit their practical application, including short operational lifetimes, low color purity, broad spectral linewidths, and unpredictable transient effects like blinking and positive aging.
Shaun Tan, Jonah R. Horowitz, Oliver J. Tye, Moungi G. Bawendi   +3 more
wiley   +1 more source

Directional Flow of Confined Polaritons in CrSBr

Advanced Materials, EarlyView.
CrSBr, a layered magnetic semiconductor, naturally channels self‐hybridized excitonpolaritons into highly directional flow. Its intrinsic optical anisotropy, high refractive index, and strong lightmatter coupling enable long‐range guided modes along the a‐axis, with propagation lengths set by their excitonphoton admixture.
Pratap Chandra Adak, Sichao Yu, Jaime Abad‐Arredondo, Biswajit Datta, Andy Cruz, Sorah Fischer, Kseniia Mosina, Zdeněk Sofer, Antonio I. Fernández‐Domínguez, Francisco J. Garcia‐Vidal, Vinod M. Menon   +10 more
wiley   +1 more source

Constraining primordial non-Gaussianity by combining photometric galaxy and 21 cm intensity mapping surveys

European Physical Journal C: Particles and Fields
The fluctuations produced during cosmic inflation may exhibit non-Gaussian characteristics that are imprinted in the large-scale structure of the Universe.
Mponeng Kopana, Sheean Jolicoeur, Roy Maartens   +2 more
doaj   +1 more source

zCOSMOS: A Large VLT/VIMOS redshift survey covering 0 < z < 3 in the COSMOS field

, 2006
S. J. Lilly, O. Le Fèvre, A. Renzini, G. Zamorani, M. Scodeggio, T. Contini, C. M. Carollo, G. Hasinger, Jean‐Paul Kneib, A. Iovino, V. Le Brun, C. Maier, V. Mainieri, M. Mignoli, J. Silverman, L. Tasca, M. Bolzonella, A. Bongiorno, D. Bottini, P. Capak, K. I. Caputi, A. Cimatti, O. Cucciati, E. Daddi, Robert Feldmann, P. Franzetti, B. Garilli, L. Guzzo, O. Ilbert, P. Kampczyk, K. Kovač, F. Lamareille, Alexie Leauthaud, J. F. Le Borgne, H. J. McCracken, C. Marinoni, R. Pelló, E. Ricciardelli, Claudia Scarlata, D. Vergani, D. B. Sanders, E. Schinnerer, N. Scoville, Y. Taniguchi, Other Zcosmos Team Members   +44 more
openalex   +1 more source

The Canada‐France Deep Fields Survey. III. Photometric Redshift Distribution to I _AB = 24 [PDF]

, 2006
M. Brodwin, S. J. Lilly, C. Porciani, H. J. McCracken, O. Le Févre, Sylvie Foucaud, D. Crampton, Y. Mellier   +7 more
openalex   +1 more source

Quadruple Helix Inversions of Liquid Crystals Orchestrated by Direct Chirality Transmission of an Intrinsically Chiral Light‐Driven Molecular Machine

Advanced Materials, EarlyView.
A molecular motor with four‐state dynamic chirality is integrated into liquid crystals, enabling quadruple sequential helix inversions and high helical twisting power. Due to high motor efficiency, the supramolecular helicity can be controlled by near‐infrared light via upconversion nanoparticles, resulting in a robust, multistate, photoresponsive soft
Jinyu Sheng, Alexander Ryabchun, Guiying Long, Ben L. Feringa   +3 more
wiley   +1 more source

Measuring Galaxy Abundance and Clustering at High Redshift from Incomplete Spectroscopic Data: Tests on Mock Catalogs

The Astrophysical Journal
The number density and correlation function of galaxies are two key quantities to characterize the distribution of the observed galaxy population. High- z spectroscopic surveys, which usually involve complex target selection and are incomplete ...
Jiacheng Meng, Cheng Li, H. J. Mo, Yangyao Chen, Kai Wang   +4 more
doaj   +1 more source

The SRG/eROSITA All-Sky Survey $J$-Band Follow-Up Observations for Selected High-Redshift Galaxy Cluster Candidates [PDF]

N. Zimmermann, M. Kluge, S. Grandis, T. Schrabback, Frank Balzer, E. Bulbul, Johan Comparat, B. Csizi, V. Ghirardini, H. Jansen, F. Kleinebreil, A. Liu, A. Merloni, M. E. Ramos-Ceja, J. S. Sanders, Xiaoyuan Zhang, P. Aschenbrenner, F. Enescu, S. Keiler, Manfred J. Mark, M. Rinner, Pierre Schweitzer, Elena Silvestre-Rosello, L. Stepman   +23 more
openalex   +1 more source

Rainbow Photonic Crystals: Self‐Assembly of Carbohydrate Bottlebrushes Block Copolymers

Advanced Materials, EarlyView.
Full‐color reflective 1D photonic crystals, capable of a tunable, responsive, and reversible color with high repeatability, are created from the self‐assembly of carbohydrate‐based brush block copolymers (BR01‐04). Abstract Tunable and responsive photonic crystal systems are the subject of great research interest owing to their ability to actively ...
Hong Li, Muhammad Mumtaz, Takuya Isono, Toshifumi Satoh, Cheng‐Liang Liu, Wen‐Chang Chen, Redouane Borsali   +6 more
wiley   +1 more source