Results 61 to 70 of about 262,930 (273)

High‐Density Boron Nitride Nanotube Composites via Surfactant‐Stabilized Lyotropic Liquid Crystals for Enhanced Space Radiation Shielding

Advanced Functional Materials, EarlyView.
High‐density BNNT films, enabling mechanical robustness and high space radiation shielding effectiveness, are fabricated using surfactant‐stabilized BNNT liquid crystal. Simulations indicate that a 50 g cm−2 BNNT film can reduce radiation exposure by 56% compared to zero shielding, potentially doubling the duration of astronaut missions on the lunar ...
Young‐Kyeong Kim, Ik Jae Lim, Hongjin Lim, Yongbi Joo, Jueun Park, Md Monir Hossain, Hyunjin Cho, Nam‐Ho You, Seokhoon Ahn, Hunsu Lee, Sang Seok Lee, Yongho Joo, Se Youn Moon, Hee Il Yoo, Calista Lum, Cheol Park, Siyoung Q. Choi, Se Gyu Jang   +17 more
wiley   +1 more source

Gone with the heat: a fundamental constraint on the imaging of dust and molecular gas in the early Universe [PDF]

Royal Society Open Science, 2016
Images of dust continuum and carbon monoxide (CO) line emission are powerful tools for deducing structural characteristics of galaxies, such as disc sizes, H2 gas velocity fields and enclosed H2 and dynamical masses. We report on a fundamental constraint
Zhi-Yu Zhang, Padelis P. Papadopoulos, R. J. Ivison, Maud Galametz, M. W. L. Smith, Emmanuel M. Xilouris   +5 more
doaj   +1 more source

Measuring the 3D Clustering of Undetected Galaxies Through Cross Correlation of their Cumulative Flux Fluctuations from Multiple Spectral Lines

, 2010
We discuss a method for detecting the emission from high redshift galaxies by cross correlating flux fluctuations from multiple spectral lines. If one can fit and subtract away the continuum emission with a smooth function of frequency, the remaining ...
, , , , , , , , , , , , A. Loeb, A. Loeb, A.E.E. Rogers, A.R. Wetzel, Abraham Loeb, C.M. Bradford ., D. Babich, D.J. Fixsen, E. Komatsu ., Eli Visbal, G. Efstathiou, J. Binney, J.X. Prochaska, L. Hui, M. McQuinn, M.F. Morales, P. Panuzzo ., S. Malhotra ., X.-M. Wang, Z. Haiman   +31 more
core   +1 more source

Facile Bottom‐Up Assembly of Photonic Micropatterns via Surface‐Guided Colloidal Crystallization

Advanced Materials, EarlyView.
High‐resolution photonic micropatterns with vivid structural colors are fabricated through bottom‐up assembly, guided by surface‐dependent regioselective heterogeneous nucleation and crystal growth of colloidal particles. Full‐spectrum color tunability is achieved by controlling particle size and interparticle attraction, while in situ color mixing is ...
Yongseok Jung, Sehee Yang, Sanghyuk Park, Shin‐Hyun Kim   +3 more
wiley   +1 more source

Statistics for Galaxy Outflows at z ∼ 6–9 with Imaging and Spectroscopic Signatures Identified with JWST/NIRCam and NIRSpec Data

The Astrophysical Journal
We present statistics of z ∼ 6–9 galaxy outflows indicated by spatially extended gas emission and broad lines. With a total of 61 spectroscopically confirmed galaxies at z ∼ 6–9 in the JWST CEERS, GLASS, and ERO data, we find four galaxies with [O iii ] +
Yechi Zhang, Masami Ouchi, Kimihiko Nakajima, Yuichi Harikane, Yuki Isobe, Yi Xu, Yoshiaki Ono, Hiroya Umeda   +7 more
doaj   +1 more source

What Powers the Compact Radio Emission in Nearby Elliptical and S0 Galaxies?

, 1998
Many nearby early-type (elliptical and S0) galaxies contain weak (milli-Jansky level) nuclear radio sources on scales a few hundred parsecs or less. The origin of the radio emission, however, has remained unclear, especially in volume-limited samples ...
Akritas M. G., de Bruyn A. G., Ekers R. D., Fanaroff B. L., Heckman T. M., Heeschen D. S., Hine R. G., Hummel E., Luis C. Ho, Rawlings S., Sadler E. M., Sadler E. M., Slee O. B.   +12 more
core   +1 more source

Extreme emission-line galaxies out to z$\sim$1 in zCOSMOS. I. Sample and characterization of global properties [PDF]

, 2014
We present a thorough characterization of a large sample of 183 extreme emission-line galaxies (EELGs) at redshift 0 ...
R. Amor'in, E. P'erez-Montero, T. Contini, J. M. V'ilchez, M. Bolzonella, L. Tasca, F. Lamareille, G. Zamorani, C. Maier, C. Carollo, J. Kneib, O. Fèvre, S. Lilly, V. Mainieri, A. Renzini, M. Scodeggio, S. Bardelli, A. Bongiorno, K. Caputi, O. Cucciati, S. D. Torre, L. Ravel, P. Franzetti, B. Garilli, A. Iovino, P. Kampczyk, C. Knobel, K. Kovavc, J. L. Borgne, V. L. B. M. Mignoli, R. Pelló, Y. Peng, V. Presotto, E. Ricciardelli, J. Silverman, M. Tanaka, L. Tresse, D. Vergani, E. Zucca   +38 more
semanticscholar   +1 more source

A Degradable Bioinspired Flier with Aerogel‐Based Colorimetric Sensors for Environmental Monitoring

Advanced Science, EarlyView.
Biodegradable fliers are developed inspired by Tipuana tipu samaras, integrating cellulose nanocrystal aerogel (CNCa) sensors loaded with natural dyes for pH and ammonia detection. The lightweight, degradable fliers mimic natural morphology and aerodynamics, offering an eco‐friendly, scalable solution for in situ environmental monitoring after passive ...
Gianpaolo Gallo, Ruowen Tu, Carlo Filippeschi, Stefano Mariani, Barbara Mazzolai   +4 more
wiley   +1 more source

The Origin of Line Emission in Massive z~2.3 Galaxies: Evidence for Cosmic Downsizing of AGN Host Galaxies

, 2007
Using the Gemini Near-InfraRed Spectrograph (GNIRS), we have assembled a complete sample of 20 K-selected galaxies at 2 ...
Bonnet H., Bower R. G., C. Megan Urry, Cattaneo A., Danilo Marchesini, Edward N. Taylor, Elias J. H., Eric Gawiser, Garth D. Illingworth, Gregory Rudnick, Ivo Labbe, Marijn Franx, Mariska Kriek, Natascha M. Forster Schreiber, Paolo Coppi, Paul P. van der Werf, Paulina Lira, Pieter G. van Dokkum, Ryan Quadri   +18 more
core   +1 more source

KILOPARSEC-SCALE PROPERTIES OF EMISSION-LINE GALAXIES [PDF]

, 2014
We perform a detailed study of the resolved properties of emission-line galaxies at kiloparsec scales to investigate how small-scale and global properties of galaxies are related. We use a sample of 119 galaxies in the GOODS fields.
S. Hemmati, Sarah H. Miller, B. Mobasher, H. Nayyeri, H. Ferguson, Yicheng Guo, A. Koekemoer, D. Koo, C. Papovich   +8 more
semanticscholar   +1 more source