Results 81 to 90 of about 3,566,597 (273)
Phase‐Pure and Size‐Tunable Tin Halide Perovskite Quantum Dots
Advanced Materials, EarlyView.A trioctylphosphine oxide modulated protocol allows for the synthesis and study of the optical properties of a broad library of tin halide perovskite quantum dots across multiple A‐ and X‐site compositions with precise size tuning while eliminating unwanted 2D phases.
Ole F. Dressler +7 more
wiley +1 more source
What Is the True H i Gas Content in Massive Quiescent Galaxies in the Local Universe?
The Astrophysical JournalWhile massive quiescent galaxies are known to be poor in atomic hydrogen (H i ), their true H i content remains poorly constrained due to the limited sensitivity and morphological biases of existing surveys.
Xiao Li +5 more
doaj +1 more source
, 2012 By comparing the widths of absorption lines from O i, Si ii and Fe ii in the redshift zabs= 2.076 single-component damped Lyα system in the spectrum of Q2206−199 we establish that these absorption lines arise in warm neutral medium (WNM) gas at ∼12 000 ±
Robert F. Carswell (19000169) +4 more
core +1 more source
Radiative Thermal Management for Extreme Environments: Mechanisms and Design Strategies
Advanced Materials, EarlyView.In this review, we discuss the fundamental mechanisms of radiative cooling and solar heating, material and structural design strategies, hybrid approaches integrating additional heat transfer pathways, and durability‐oriented designs addressing environmental stresses.
Hyung Rae Kim +5 more
wiley +1 more source
Galactic Dust Polarization in Turbulent Multiphase ISM: On the Origin of the EE/BB Asymmetry
The Astrophysical JournalPolarized thermal emission from Galactic dust is the dominant foreground for cosmic microwave background polarization measurements at high frequencies, with its statistical properties shaped by the interplay between turbulence and magnetic fields in the ...
Yue Hu +3 more
doaj +1 more source
THE THERMALLY UNSTABLE WARM NEUTRAL MEDIUM: KEY FOR MODELING THE INTERSTELLAR MEDIUM
, 2010 International audienceWe present 21 cm absorption measurements toward 12 radio continuum sources with previously identified thermally unstable warm neutral medium (WNM).
Heiles, Carl +11 more
core +1 more source
Advanced Materials, EarlyView.Topological insulator–metamaterials integrated with electrically driven terahertz quantum cascade lasers enable parity‐dependent harmonic generation. Bulk‐dominated Bi2Se3 favors third‐harmonic emission at 9.96 THz, whereas topological‐surface‐state‐dominated Bi2Se3, Bi2Te3, and (Bi,Sb)2Te3 generate strong second harmonics near 6.5 THz.
Alessandra Di Gaspare +9 more
wiley +1 more source
The Local Group L-band Survey: Probing Cold Atomic Gas in IC 10 with Neutral Hydrogen Absorption
The Astrophysical JournalWe present the first localized detections of the cold neutral medium (CNM) in IC 10, offering a rare view of dense atomic gas in a low-metallicity ( Z / Z _⊙ ∼ 0.27) dwarf galaxy.
Ioana A. Stelea +22 more
doaj +1 more source
Tiny-Scale Atomic Structure and the Cold Neutral Medium--Review and Recap
, 2007 Invited paper at the workshop, "Small Ionized and Neutral Structures in the Diffuse Interstellar Medium", eds. M. Haverkorn and W.M. Goss (ASP Conference Series)
openaire +2 more sources
Properties of the thinnest cold HI clouds in the diffuse interstellar medium
, 2007 We have obtained deep HI observations in the direction of 22 continuum sources without previously detected cold neutral medium (CNM). 18 CNM clouds were detected with the typical HI column density of 3×1018 cm-2.
Heiles, Carl +2 more
core