Results 31 to 40 of about 247 (167)

Starlight polarization and CO observations towards the Lupus clouds [PDF]

Monthly Notices of the Royal Astronomical Society, 1998
Facultad de ...
Rizzo, José Ricardo, Morras, Ricardo, Arnal, Edmundo Marcelo   +2 more
openaire   +2 more sources

It's Not a Bug, It's a Feature: Functional Materials in Insects

Advanced Materials, Volume 30, Issue 19, May 10, 2018., 2018
Insects have evolved manifold optimized solutions to everyday problems. The diversity and precision of their hierarchical material adaptations often outsmart and outperform current man‐made approaches. These materials hence provide an excellent basis for the inspiration of new technological approaches by taking design cues from nature's solutions ...
Thomas B. H. Schroeder, Jared Houghtaling, Bodo D. Wilts, Michael Mayer   +3 more
wiley   +1 more source

Development and Validation of the Whole Atmosphere Community Climate Model With Thermosphere and Ionosphere Extension (WACCM‐X 2.0)

Journal of Advances in Modeling Earth Systems, Volume 10, Issue 2, Page 381-402, February 2018., 2018
Abstract Key developments have been made to the NCAR Whole Atmosphere Community Climate Model with thermosphere and ionosphere extension (WACCM‐X). Among them, the most important are the self‐consistent solution of global electrodynamics, and transport of O+ in the F‐region.
Han‐Li Liu, Charles G. Bardeen, Benjamin T. Foster, Peter Lauritzen, Jing Liu, Gang Lu, Daniel R. Marsh, Astrid Maute, Joseph M. McInerney, Nicholas M. Pedatella, Liying Qian, Arthur D. Richmond, Raymond G. Roble, Stanley C. Solomon, Francis M. Vitt, Wenbin Wang   +15 more
wiley   +1 more source

Circumstellar grains and the intrinsic polarization of starlight

The Astrophysical Journal, 1975
Twenty-five long-period variable stars exhibiting intrinsic variable polarization have been monitored over the range 3.5-11 microns for several cycles. No conclusive evidence for gross changes in amount of circumstellar grains has been found. Thus circumstellar infrared emission is attributed to the total abundance of grains surrounding the star ...
W. J. Forrest, F. C. Gillett, W. A. Stein   +2 more
openaire   +1 more source

Emerging technologies for high performance infrared detectors

Nanophotonics, Volume 7, Issue 1, Page 169-197, January 2018., 2018
Abstract Infrared photodetectors (IRPDs) have become important devices in various applications such as night vision, military missile tracking, medical imaging, industry defect imaging, environmental sensing, and exoplanet exploration. Mature semiconductor technologies such as mercury cadmium telluride and III–V material‐based photodetectors have been ...
Chee Leong Tan, Hooman Mohseni
wiley   +1 more source

Statistical Analysis of Machine Learning‐Derived Equatorial Plasma Bubble Characteristics From Airglow Observations in Southern China During a Solar Cycle

Space Weather, Volume 23, Issue 11, November 2025.
Abstract The equatorial plasma bubble (EPB) evolutionary behavior in the Chinese sector remains poorly understood due to insufficient long‐term statistical characterization. Leveraging prior machine learning frameworks, this work presents the first statistical profile of EPB evolution over an entire solar cycle (2012–2022) in southern China, using ...
Jia Zhong, Kun Wu, Ziming Zou, Jiyao Xu, Longchang Sun, Wei Yuan   +5 more
wiley   +1 more source

Cosmic Rays Report from the Structure of Space

Advances in Astronomy, Volume 2015, Issue 1, 2015., 2015
Spectrum of cosmic rays follows a broken power law over twelve orders of magnitude. Since ubiquitous power laws are manifestations of the principle of least action, we interpret the spectrum accordingly. Our analysis complies with understanding that low‐energy particles originate mostly from rapidly receding sources throughout the cosmos.
A. Annila, Alberto J. Castro-Tirado
wiley   +1 more source

Interstellar Polarization Survey. V. Galactic Magnetic Field Tomography of the Spiral Arms Using Optical and Near-infrared Starlight Polarization

The Astronomical Journal
Interstellar linear polarization occurs when starlight passes through elongated dust grains aligned by interstellar magnetic fields. The observed polarization can come from different dust structures along the line of sight (LOS).
Y. Angarita, M. J. F. Versteeg, M. Haverkorn, V. Pelgrims, C. V. Rodrigues, A. M. Magalhães, R. Santos-Lima, Koji S. Kawabata   +7 more
doaj   +1 more source

Vision at high latitudes: High sensitivity without specific boreal adaptations in photoreception in reindeer (Rangifer tarandus L.)

Functional Ecology, Volume 39, Issue 10, Page 2573-2587, October 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The light climate at high latitudes, in particular the extended twilight of winter and the reduced diel variation in light level in midsummer and midwinter, potentially constrains visual function and the synchronisation of temporal organisation in polar species. In this
Nicholas J. C. Tyler, Robert A. E. Fosbury, David Hazlerigg, Christopher Hogg   +3 more
wiley   +1 more source

Anomalous Microwave Emission from Star Forming Regions

Advances in Astronomy, Volume 2013, Issue 1, 2013., 2013
The evidence for microwave emission from spinning dust grains has been strengthened considerably by its detection in a number of discrete astrophysical objects associated with star formation. These detections, in combination with statistical constraints on its presence on large angular scales in the diffuse ISM, have provided strong observational ...
Anna M. M. Scaife, Laurent Verstraete
wiley   +1 more source