Results 91 to 100 of about 73,795 (320)

The Mass and Extent of the Galactic Halo [PDF]

arXiv, 1998
We review the various techniques used to constrain the Galactic halo mass profile for radii > 20 kpc with particular emphasis on identifying a self-consistent halo model and resolving the apparent discrepancies present in the literature on this subject.
arxiv  

Next‐Generation Image Sensors Based on Low‐Dimensional Semiconductor Materials

Advanced Materials, EarlyView.
Low‐dimensional semiconductor materials are promising candidates for photosensitive components in next‐generation image sensors. This review offers a thorough and timely examination of novel image sensors, covering their working principles, intriguing materials categorized into four main groups, and advanced imaging applications.
Yunxia Hu, Zhaoli Gao, Zhengtang Luo, Liang An   +3 more
wiley   +1 more source

Galactic Spiral Pattern beyond the Optical Size Induced by the Triaxial Dark Halo

Open Astronomy, 2015
We suggest a possible mechanism for the formation of non-tidal gaseous structures in galactic outskirts. According to recent observations, extended spiral structures are detected beyond the optical radii Ropt in numerous disk galaxies.
Butenko M., Khoperskov A., Khoperskov S.
doaj   +1 more source

HVCs probing a gaseous Galactic halo [PDF]

arXiv, 1998
We study the hypothesis that high-velocity clouds (HVCs) may originate from instabilities within the gaseous phase of the Galactic halo. According to the hydrostatic equilibrium model of Kalberla & Kerp (1998), we determine the probability distribution of occurrence of instabilities within the Galactic halo.
arxiv  

Diagnostics of Gaseous Halo of the Milky Way by a Shock Wave from the Galactic Centre [PDF]

, 2019
A method to diagnose the gas distribution in the Galactic halo using a shock wave from the Galactic Centre (GC) is presented. Propagation of a shock wave caused by central explosion with released energy $\sim 10^{55}$ erg is calculated for various models of the gaseous halo, and the shock front morphology is compared with the observed North- (NPS) and ...
arxiv   +1 more source

Development and Optimization of Micro‐Nanotopographical Platforms for Surface Enhanced Raman Scattering Biomolecular Detection

Advanced Materials Interfaces, EarlyView.
Lithographically defined concentric micro‐ and nanostructures systematically designed and fabricated as reproducible arrays for Surface‐enhanced Raman spectroscopy applications. Abstract Topologically designed micro‐ and nanostructured surface‐enhanced Raman scattering (SERS) substrates propel the advancements of innovative applications, including ...
David Femi Odetade, Jonathan J. S. Rickard, Pola Goldberg Oppenheimer   +2 more
wiley   +1 more source

Yield estimation of summer maize based on multi‐source remote‐sensing data

Agronomy Journal, Volume 114, Issue 6, Page 3389-3406, November/December 2022., 2022
Abstract Accurately estimating regional‐scale crop yields is substantial in determining current agricultural production performance and effective agricultural land management. The Yuncheng Basin is an important grain‐producing area in the Shanxi Province. This paper used Sentinel 2A with a spatial resolution of 10 m and MODIS with a temporal resolution
Jingshu Wang, Peng He, Zhengchu Liu, Yaodong Jing, Rutian Bi   +4 more
wiley   +1 more source

Highlights of DAMA/LIBRA

EPJ Web of Conferences, 2016
The DAMA project develops and uses new/improved low background scintillation detectors to investigate the Dark Matter (DM) particle component(s) in the galactic halo and rare processes deep underground at the Gran Sasso National Laboratory (LNGS) of the ...
Bernabei R., Belli P., d’Angelo A., d’Angelo S., Di Marco A., Montecchia F., Incicchitti A., Cappella F., Caracciolo V., Cerulli R., Dai C.J., He H.L., Kuang H.H., Ma X.H., Sheng X.D., Wang R.G., Ye Z.P.   +16 more
doaj   +1 more source

How to Achieve High Spatial Resolution in Organic Optobioelectronic Devices?

Advanced Materials Interfaces, EarlyView.
This study explores how the optoelectronic properties of organic semiconductors impact on the resolution of light‐activated bioelectronic interfaces. Using photovoltage and photocurrent microscopy techniques, the authors show that H2PC/PTCDI heterojunctions enable a resolution down to 6.5 µm due to low carrier mobility along the heterojunction.
Luca Fabbri, Ludovico Migliaccio, Aleksandra Širvinskytė, Giacomo Rizzi, Luca Bondi, Cristiano Tamarozzi, Stefan A.L. Weber, Beatrice Fraboni, Eric Daniel Glowacki, Tobias Cramer   +9 more
wiley   +1 more source

CHANG-ES. XXXV. Cosmic Ray Transport and Magnetic Field Structure of NGC 3556 at 3 GHz

The Astrophysical Journal
Radio halos of edge-on galaxies are crucial for investigating cosmic ray propagation and magnetic field structures in galactic environments. We present VLA C-configuration S -band (2–4 GHz) observations of the spiral galaxy NGC 3556, a target from the ...
Jianghui Xu, Yang Yang, Jiang-Tao Li, Guilin Liu, Judith Irwin, Ralf-Jürgen Dettmar, Michael Stein, Theresa Wiegert, Q. Daniel Wang, Jayanne English   +9 more
doaj   +1 more source