Results 81 to 90 of about 108,440 (263)
Chiral Emission from Optical Metasurfaces and Metacavities
Advanced Photonics Research, Volume 5, Issue 12, December 2024.Chiral emission with near‐unity degree of circular polarization and strong emission intensities is highly desirable. This review discusses recent experimental demonstrations on chiral emission from achiral emitters that are combined with patterned nanostructures.
Jungho Han +5 more
wiley +1 more source
Advanced Physics Research, Volume 3, Issue 11, November 2024.This study explores Brownian motion in enhanced green fluorescent protein (EGFP) using luminescence nanothermometry. How protein concentration and temperature impact EGFP dynamics is demonstrated providing insights into protein behavior in crowded environments.
Yongwei Guo +3 more
wiley +1 more source
The Astrophysical Journal, 2023 We use the large spectroscopic data set of the MOSFIRE Deep Evolution Field survey to investigate some of the key factors responsible for the elevated ionization parameters ( U ) inferred for high-redshift galaxies, focusing in particular on the role of ...
Naveen A. Reddy +8 more
doaj +1 more source
Topology of the Galaxy Distribution in the Hubble Deep Fields
, 2000 We have studied topology of the distribution of the high redshift galaxies identified in the Hubble Deep Field (HDF) North and South. The two-dimensional genus is measured from the projected distributions of the HDF galaxies at angular scales from $3.8''$
Clements D. L. +5 more
core +1 more source
Probing extreme black‐hole outflows on short timescales via high spectral‐resolution x‐ray imagers
Astronomische Nachrichten, Volume 345, Issue 6-7, July-August 2024.Abstract We investigate outflows and the physics of super‐Eddington versus sub‐Eddington regimes in black hole systems. Our focus is on prospective science using next‐generation high‐resolution soft x‐ray instruments. We highlight the properties of black hole ultraluminous x‐ray source (ULX) systems in particular. Owing to scale invariance in accreting
C. Pinto +9 more
wiley +1 more source
Environmentally Driven Global Evolution of Galaxies
, 2011 Utilizing high-resolution large-scale galaxy formation simulations of the standard cold dark matter model, we examine global trends in the evolution of galaxies due to gravitational shock heating by collapse of large halos and large-scale structure.
Baldry +39 more
core +1 more source
High-redshift Lyman-α galaxies [PDF]
Proceedings of the International Astronomical Union, 2006 A strong Lyman-α line enables relatively easy detection of high redshift galaxies. Lyman-α galaxies are now known from z = 3 to 6.6. No evolution is discerned in the Lyman-α line luminosity function in this redshift range. This implies that the intergalactic medium at z = 6 is at least 50% ionized over more than 50% of the volume.
Sangeeta Malhotra, James E. Rhoads
openaire +1 more source
Small Structures, Volume 5, Issue 7, July 2024.Cellulose nanocrystals are abundant, biodegradable nanoparticles that can self‐assemble into a helical stacking that exhibits structural color. By adding a single surfactant, cellulose nanocrystals can be made compatible with apolar solvents, which are widely used for industrial coatings.
Diogo V. Saraiva +4 more
wiley +1 more source
Late-time growth weakly affects the significance of high-redshift massive galaxies
The Open Journal of AstrophysicsRecent observations by the James Webb Space Telescope have revealed massive galaxies at very high redshift ($z\simeq 7-15$). The question of whether the existence of such galaxies is expected in the corresponding JWST surveys has received a lot of ...
Qianran Xia +2 more
doaj +1 more source
Mission: Impossible (Escape from the Lyman Limit)
, 2003 We investigate the intrinsic opacity of high-redshift galaxies to outgoing ionising photons using high-quality photometry of a sample of 27 spectroscopically-identified galaxies of redshift 1 ...
Chen, H. -W. +2 more
core +1 more source