Results 81 to 90 of about 909,763 (253)

Shadow-based Framework for Estimating Transition Disk Geometries

The Astrophysical Journal
Some transition disks host misaligned inner disks with radii of several astronomical units. Understanding the geometric and physical properties of these misaligned disks is essential for advancing terrestrial planet formation models.
Ryuta Orihara, Munetake Momose
doaj   +1 more source

Multispectral Mid‐Infrared Imaging With Incoherent Light via Adiabatic Upconversion

Laser &Photonics Reviews, EarlyView.
We demonstrate room‐temperature broadband MIR imaging based on adiabatic frequency upconversion, driven by a Q‐switched pump laser and incoherent illumination. The small‐foot‐print system upconverts the spectral range to the visible domain, without scanning, thermal control and with spatial resolution below 20μm$20\mathrm{\mu}\mathrm{m}$.
Daniel Beitner, Ziv Abelson, Eyal Hollander, Omri Meron, Haim Suchowski   +4 more
wiley   +1 more source

Pulsed Infrared Emission from Magnetar 4U 0142+61 Detected by JWST

The Astrophysical Journal
We report on a JWST observation of the magnetar 4U 0142+61 on 2024 August 18 with the Near-Infrared Camera (NIRCam). NIRCam observed the magnetar for 33 minutes in timing mode, providing a time resolution of 2.5 s. In the F410M filter (pivot wavelength 4.
Jeremy Hare, George G. Pavlov, Bettina Posselt, George Younes, Oleg Kargaltsev, Alex van Kooten   +5 more
doaj   +1 more source

Kinematical and dynamical properties of recently discovered bulge and disc star clusters with WINERED

Astronomy & Astrophysics
Context. Galactic globular clusters are a very important tool in explaining the characteristics of the Milky Way. Therefore it is essential to determine the kinematical and dynamical properties of the new star cluster candidates, especially at the low ...
Petralia Ilaria, Minniti Dante, Fernández-Trincado José G., Matsunaga Noriyuki, Taniguchi Daisuke, Saroon Sasi, Garro Elisa R., Sameshima Hiroaki, Otsubo Shogo, Sarugaku Yuki, Takeuchi Tomomi   +10 more
doaj   +1 more source

Wavefront Shaping for Optimal Extinction of Focused Light by Individual Nanoscatterers

Laser &Photonics Reviews, EarlyView.
Wavefront shaping enables near‐complete optical extinction by nanoscatterers separated from a planar reflector. Time‐reversed emission profiles provide optimal illumination conditions, yielding 70% extinction from a single plasmonic nanoparticle and up to 90% from sub‐wavelength nanoparticle clusters, offering a promising route to efficient in‐ and out‐
Nick Feldman, Joris Pals, Arie J. den Boef, F. Javier García de Abajo, Lyubov V. Amitonova, A. Femius Koenderink   +5 more
wiley   +1 more source

Enhancing severe convection forecasts with microwave radiance assimilation in limited‐area models

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Microwave satellite radiances remain largely underexploited in convection‐permitting limited‐area models. We assess the assimilation of humidity‐sensitive radiances from the MHS instrument in the operational ICON‐2I model, improving the precipitation forecast of a severe convective event over the Marche region, Italy, substantially by correcting ...
Marcello Grenzi, Thomas Gastaldo, Virginia Poli, Chiara Marsigli, Tijana Janjic, Alberto Carrassi   +5 more
wiley   +1 more source

Stratospheric Observatory For Infrared Astronomy: Educational Materials

, 2006
The Stratospheric Observatory For Infrared Astronomy (SOFIA) Education and Public Outreach site features classroom activities related to SOFIA science and technology.

core  

Accessing Both Electrochemical SEIRA and SERS With Highly Sensitive Metamaterials for Enhanced Molecular Identification

Small, EarlyView.
Surface‐enhanced infrared absorption (SEIRA) and Raman scattering (SERS) are complementary, highly sensitive molecular detection methods. A reusable metamaterial substrate capable of combined SEIRA and SERS is used here for real‐time sensing, tracking interfacial dynamics in an electrochemical reaction and detecting symmetry‐breaking behavior at the ...
Nicolas Spiesshofer, Tabitha Jones, Sarah May Sibug‐Torres, Zoltan Sztranyovszky, Caleb Todd, Shijie Zhu, Yeeun Roh, Rakesh Arul, Alexander Squires, Ivana Qianqi Lin, Angela Demetriadou, David O. Scanlon, Viv Lindo, Jeremy J. Baumberg   +13 more
wiley   +1 more source

Infrared astronomy: seeing the heat : from William Herschel to the Herschel space observatory

, 2014
Uncover the Secrets of the Universe Hidden at Wavelengths beyond Our Optical GazeWilliam Herschel's discovery of infrared light in 1800 led to the development of astronomy at wavelengths other than the optical.
Clements, David L
core  

Meteorological effects of the 29 March 2025 solar eclipse over the UK

Weather, EarlyView.
Here we present a comprehensive analysis of the effects of the moderate partial solar eclipse of 29 March 2025 on meteorological conditions over the UK, based on 1‐min‐resolution data from ~250 automatic weather stations in the Met Office's Meteorological Monitoring Network, finding a modest but nevertheless significant surface air temperature response
Edward Hanna, John Penman, Giacomo Pellegrini, Linh Luu, Robert G. Bryant   +4 more
wiley   +1 more source