Results 81 to 90 of about 429,650 (351)

Chaos and variance in galaxy formation [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2018
The evolution of galaxies is governed by equations with chaotic solutions: gravity and compressible hydrodynamics. While this micro-scale chaos and stochasticity has been well studied, it is poorly understood how it couples to macro-scale properties examined in simulations of galaxy formation.
B W Keller   +3 more
openaire   +2 more sources

Photopatternable PEDOT:PSS Hydrogels for High‐Resolution Photolithography

open access: yesAdvanced Science, EarlyView.
A photosensitive biphasic conducting polymer hydrogel (PB‐CH) is rationally designed with PEDOT:PSS as the conductive phase and a light‐sensitive matrix as the mechanical phase. Such a PB‐CH offers a unique combination of excellent conductivity (≈30 S cm⁻¹), robust mechanical performance (with stretchability up to 50%), and high photopatternability ...
Wen Wang   +7 more
wiley   +1 more source

Diffuse Light in Milky Way–like Haloes

open access: yesThe Astrophysical Journal Letters
We investigate the diffuse light (DL) content of dark matter haloes in the mass range $11.5\leqslant \mathrm{log}{M}_{\mathrm{halo}}\leqslant 13$ , a range that also includes the dark matter halo of the Milky Way, taking advantage of a state-of-the-art ...
Emanuele Contini   +4 more
doaj   +1 more source

MIDIS: Strong (Hβ+[O iii]) and Hα Emitters at Redshift z ≃ 7–8 Unveiled with JWST NIRCam and MIRI Imaging in the Hubble eXtreme Deep Field

open access: yesThe Astrophysical Journal, 2023
We make use of JWST medium-band and broadband NIRCam imaging, along with ultradeep MIRI 5.6 μ m imaging, in the Hubble eXtreme Deep Field to identify prominent line emitters at z ≃ 7–8.
P. Rinaldi   +46 more
doaj   +1 more source

Understanding the Formation of Galaxies with Warm Dark Matter [PDF]

open access: yesarXiv, 2023
The formation of galaxies with warm dark matter is approximately adiabatic. The cold dark matter limit is singular and requires relaxation. In these lecture notes we develop, step-by-step, the physics of galaxies with warm dark matter, and their formation. The theory is validated with observed spiral galaxy rotation curves. These observations constrain
arxiv  

The Epoch of Galaxy Formation

open access: yesThe Astrophysical Journal, 1998
Minor revisions to match version published in May 10 ApJ. 1998, ApJ, 498, 504-521. Uses emulateapj.sty.
Cedric G. Lacey   +3 more
openaire   +3 more sources

Wireless Technologies for Wearable Electronics: A Review

open access: yesAdvanced Electronic Materials, EarlyView.
This review discusses recent advancements in wireless wearable electronics, focusing on communication technologies and power solutions. It covers key design considerations, explores wireless protocols from short‐ to long‐range networks, and examines powering methods such as integrated sources and energy harvesting.
Choong Yeon Kim   +8 more
wiley   +1 more source

Disk Galaxy Formation in a LambdaCDM Universe

open access: yes, 2004
We describe hydrodynamical simulations of galaxy formation in a Lambda cold dark matter (CDM) cosmology performed using a subresolution model for star formation and feedback in a multiphase interstellar medium (ISM).
Brant Robertson   +13 more
core   +1 more source

A Review of Ga₂O₃ Heterojunctions for Deep‐UV Photodetection: Current Progress, Methodologies, and Challenges

open access: yesAdvanced Electronic Materials, EarlyView.
This paper provides a comprehensive review of the existing literature related to the fundamentals of gallium oxide (Ga2O3), growth methods, substrates, and particularly a focused examination of Ga2O3‐based heterojunctions. Particular attention has also been given to the state‐of‐the‐art Ga2O3‐based heterojunctions for photodetectors. The key challenges
Alfred Moore   +4 more
wiley   +1 more source

BreakBRD Galaxies I: Global Properties of Spiral Galaxies with Central Star Formation in Red Disks [PDF]

open access: yes, 2019
We introduce a collection of primarily centrally star-forming galaxies that are selected by disk color to have truncated disk star formation. We show that common explanations for centrally-concentrated star formation -- low stellar mass, bars, and high-density environments, do not universally apply to this sample.
arxiv   +1 more source

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