Results 121 to 130 of about 66,780 (247)

Laser Ablation Sampling With Low‐Power Plasma: A LA‐MIP‐MS Instrument for Spaceflight

Rapid Communications in Mass Spectrometry, Volume 40, Issue 3, 15 February 2026.
ABSTRACT Rationale Inductively coupled plasma (ICP) is a commonly used ion source for mass spectrometry‐based chemical analysis of a wide range of materials. Traditional ICP ion sources use high power (> 1000 W) and significant gas flow (> 10 L/min), rendering them unsuitable for spaceflight, as they are too resource‐intensive for planetary spacecraft.
Benjamin J. Farcy, Jacob Graham, Madeline Raith, Ricardo Arevalo Jr., Mazdak Taghioskoui, Sierra Budinoff, Amy McAdam, Jane Lee, Ryan M. Danell, Desmond A. Kaplan, Cynthia Gundersen, William F. McDonough   +11 more
wiley   +1 more source

HWO Target Stars and Systems: A Survey of Archival UV and X-Ray Data

The Astronomical Journal
We assess archival high-energy data for key stars on the Habitable Worlds Observatory (HWO) Target Stars and Systems 2025 list, as stellar radiation is critical to shaping and interpreting planetary atmospheres.
Sarah Peacock, David J. Wilson, Tyler Richey-Yowell, Noah W. Tuchow, Kevin France, José A. Caballero, Riccardo Spinelli, Lía Corrales, Aiden S. Zelakiewicz, Seth Redfield, Keighley Rockcliffe, Allison Youngblood, Cynthia S. Froning, Girish M. Duvvuri, Breanna A. Binder, Natalie R. Hinkel, Eric E. Mamajek   +16 more
doaj   +1 more source

Smart and Flexible Optical Solar Reflectors for Passive Radiative Cooling Regulation in Space Using a W:VO2 Metasurface

Nanophotonics, Volume 15, Issue 3, 12 February 2026.
Passive regulation of thermal management in space relies on engineered radiative coatings that can vary their emissivity with temperature. Here a smart and flexible solution is presented combining a W:VO2 metasurface with a low‐emissivity solar reflector. This highly durable first‐surface coating survives space qualification tests and offers attractive
Mirko Simeoni, Kai Sun, Alessandro Urbani, Ioannis Zeimpekis, Ilja Czolkos, Lars Kildebro, Matteo Gaspari, Giovanni Bartolini, Behcet Alpat, Jiri Frolec, Tomas Kralik, Cornelis H. (Kees) de Groot, Otto L. Muskens, Sandro Mengali   +13 more
wiley   +1 more source

C+ 133.5 nm Emission Mechanisms on Mars Revealed by the MAVEN Observations

The Astrophysical Journal
C ^+ emission is generated by electron impact, dissociative ionization, photoionization, and resonant scattering with carbon-related atoms, molecules, and ions in the Martian ionosphere and thermosphere. The contribution of each mechanism to the emission,
Shotaro Sakai, Hiromu Nakagawa, Justin Deighan, Sonal K. Jain, Kei Masunaga, Fuminori Tsuchiya, Naoki Terada, Majd Mayyasi, Nicholas M. Schneider, David L. Mitchell, Christian Mazelle, Mehdi Benna, Robert J. Lillis, Go Murakami, Shannon M. Curry, Kanako Seki   +15 more
doaj   +1 more source

Physical Sciences: Ultraviolet Astronomy [PDF]

, 1971
B. E. J. Pagel
openalex   +1 more source

Synthesis and Electronic Structure of the Fractionally Occupied Double Perovskite EuTa2O6 with Ordered Europium Vacancies

Advanced Functional Materials, Volume 36, Issue 10, 2 February 2026.
Two‐dimensional electronic states are the foundation of modern semiconductor technology. Here, we report molecular‐beam epitaxy growth of fractional double perovskite, EuTa2O6. Reciprocal space mapping and transmission electron microscopy confirm a layered ordering of A‐site cations.
Tobias Schwaigert, Ali Barooni, Benjamin Gregory, Paul Malinowski, Anirudh Tenneti, Sonia Hasko, Brenan Palazzolo, Jeffrey W Hodgson, Brendan Faeth, Patrick M. Woodward, Kyle M. Shen, Andrej Singer, Maryam Ghazisaeidi, Salva Salmani‐Rezaie, Darrell G. Schlom, Kaveh Ahadi   +15 more
wiley   +1 more source

Disorder Scattering Induced Large Room Temperature Nonlinear Anomalous Hall Effect in a Semiconductor CdGeAs2

Advanced Materials, Volume 38, Issue 7, 2 February 2026.
Bulk CdGeAs2, a well‐known nonlinear optical semiconductor, exhibits an exceptionally large room‐temperature nonlinear Hall effect (NLHE), achieving a record‐high nonlinear Hall responsivity of 2.2 × 10−3 m/V. This pronounced NLHE enables broadband frequency mixing up to the megahertz regime, establishing CdGeAs2 as a promising platform for next ...
Seng Huat Lee, Takumi Iwaya, Kosuke Nakayama, Ting Yong Lim, Lujin Min, Jingyang He, Yu Wang, Venkatraman Gopalan, Zhijian Xie, Xing‐Chen Pan, Yong P. Chen, Tay‐Rong Chang, Hsin Lin, Liang Fu, Kouji Segawa, Takafumi Sato, Zhiqiang Mao   +16 more
wiley   +1 more source

Superconducting tunnel junctions as detectors for ultraviolet,optical, and near infrared astronomy [PDF]

, 1997
T. Peacock, P. Verhoeve, N. Rando, M. A. C. Perryman, B. G. Taylor, P. Jakobsen   +5 more
openalex   +1 more source

Phase Topology Stability of an Optical Vortex via an Electrically Controlled Twist‐Planar Oriented Liquid Crystal Fresnel Lens

Advanced Optical Materials, Volume 14, Issue 5, 2 February 2026.
A simple and efficient method for determining the stability of optical vortices via Fourier transform using a conventional spherical lens is presented. The theoretical and experimental results demonstrate a practical approach to directly and unambiguously measure the magnitude and sign of the topological charge of a beam without altering an ...
Elena Melnikova, Katsiaryna Pantsialeyeva, Dmitry Gorbach, Alexei Tolstik, Sergei Slussarenko Jr., Alina Karabchevsky   +5 more
wiley   +1 more source

Excess Ultraviolet Emission at High Galactic Latitudes: A New Horizons View

The Astronomical Journal
We present new observations of the cosmic ultraviolet background (CUVB) at high Galactic latitudes (∣ b ∣ > 40 ^∘ ), made using the Alice UV spectrograph on board the New Horizons spacecraft.
Jayant Murthy, J. Michael Shull, Marc Postman, Joel Wm. Parker, Seth Redfield, Nathaniel Cunningham, G. Randall Gladstone, Jon P. Pineau, Pontus Brandt, Anne J. Verbiscer, Kelsi N. Singer, Harold A. Weaver, Richard C. Henry, S. Alan Stern   +13 more
doaj   +1 more source