Results 61 to 70 of about 2,644 (224)

An Investigation into the Selection and Colors of Little Red Dots and Active Galactic Nuclei

The Astrophysical Journal
Recently, a large number of compact sources at z  > 4 with blue UV slopes and extremely red rest-frame optical slopes have been found in James Webb Space Telescope (JWST) extragalactic surveys. As a subsample of these sources, commonly called “little red
Kevin N. Hainline, Roberto Maiolino, Ignas Juodžbalis, Jan Scholtz, Hannah Übler, Francesco D’Eugenio, Jakob M. Helton, Yang Sun, Fengwu Sun, Brant Robertson, Sandro Tacchella, Andrew J. Bunker, Stefano Carniani, Stephane Charlot, Emma Curtis-Lake, Eiichi Egami, Benjamin D. Johnson, Xiaojing Lin, Jianwei Lyu, Pablo G. Pérez-González, Pierluigi Rinaldi, Maddie S. Silcock, Giacomo Venturi, Christina C. Williams, Christopher N. A. Willmer, Chris Willott, Junyu Zhang, Yongda Zhu   +27 more
doaj   +1 more source

JWST Discovers the Vertical Structure of Uranus' Ionosphere

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract On 19 January 2025, the James Webb Space Telescope (JWST) program # $\mathrm{\#}$5073 observed Uranus for almost a full rotation with NIRSpec. We present the first ever vertical ionospheric profiles of H3+ ${\mathrm{H}}_{3}^{+}$ temperature, volumetric density and total emission.
Paola I. Tiranti, H. Melin, L. Moore, E. M. Thomas, K. L. Knowles, T. S. Stallard, K. Roberts, J. O’Donoghue   +7 more
wiley   +1 more source

Equatorial CO2 Distribution Suggests Active CO2 Supply on Europa

The Planetary Science Journal
The James Webb Space Telescope’s (JWST) observation of Europa recently revealed CO _2 accumulation around geologically young chaos terrains Tara Regio and Powys Regio.
Shintaro Kadoya, Yasuhito Sekine, Takanori Kodama   +2 more
doaj   +1 more source

The Promise of Solid Lubricants for a Sustainable Future

Advanced Materials, Volume 38, Issue 8, 6 February 2026.
Lubricants are vital for technology, saving energy and resources. The industry seeks sustainable solutions beyond fossil fuels. Solid lubricants offer extremely low friction and reduce environmental impact, especially in harsh conditions. Can these solids truly replace liquid lubricants, or are they limited to extreme applications?
Philipp G. Grützmacher, Andrey A. Voevodin, András Korényi‐Both, Maria Clelia Righi, Christopher DellaCorte, Nazlim Bagcivan, Ali Erdemir, Carsten Gachot   +7 more
wiley   +1 more source

Confirmation of a Non‐Transiting Planet in the Habitable Zone of the Nearby M Dwarf L 98‐59

Astronomische Nachrichten, Volume 347, Issue 2, February 2026.
ABSTRACT Only 40 exoplanetary systems with five or more planets are currently known. These systems are crucial for our understanding of planet formation and planet‐planet interaction. The M dwarf L 98‐59 has previously been found to show evidence of five planets, three of which are transiting.
Paul I. Schwarz, Stefan Dreizler, René Heller   +2 more
wiley   +1 more source

Goldeneye: James Webb Space Telescope [PDF]

Chinese Science Bulletin, 2022
Wei Zheng, Linhua Jiang
openaire   +1 more source

Confirming Near- to Mid-infrared Photometrically Identified Obscured AGNs in the JWST Era

The Astrophysical Journal
We evaluate the underlying assumptions for the identification of active galactic nuclei (AGNs) through near- and mid-infrared photometry and spectral energy distribution (SED) fitting out to z ∼ 3.
George H. Rieke, Yang Sun, Jianwei Lyu, Christopher N. A. Willmer, Yongda Zhu, Pierluigi Rinaldi, Meredith A. Stone, Kevin N. Hainline, Pablo G. Pérez-González   +8 more
doaj   +1 more source

The eJWST active galactic nucleus observation catalogue

Astronomy & Astrophysics
Context. The European Archive of the James Webb Space Telescope (eJWST) provides access to all data collected by the James Webb Space Telescope (JWST).
Lenk V., Labiano A., Circosta C., Alonso-Herrero A., Wylezalek D.   +4 more
doaj   +1 more source

Evidence for a Nonzero Eccentricity Superpuff Exoplanet WASP-107 b Using JWST Occultation Observation

The Astrophysical Journal Letters
WASP-107 b is an extremely low-density superpuff exoplanet whose inflated radius and evidence of strong internal heating make it a key target for understanding planetary structure and evolution.
Yunke Wu, Zixin Zhang, Xinyue Ma, Zhangliang Chen, Wenqin Wang, Shangfei Liu, Cong Yu, Dichang Chen, Bo Ma   +8 more
doaj   +1 more source

Spitzer + Hubble Space Telescope Parallaxes of 13 Late T and Y Dwarfs

The Astronomical Journal
We present astrometric measurements for 13 cold brown dwarfs in the solar neighborhood ( d  
Federico Marocco, J. Davy Kirkpatrick, Richard L. Smart, Adam C. Schneider, Dan Caselden, Edgardo Costa, Michael C. Cushing, Maximiliano Dirk, Peter R. M. Eisenhardt, Jacqueline K. Faherty, Christopher R. Gelino, Marc J. Kuchner, Aaron M. Meisner, Rene A. Mendez, Robert A. Stiller, Edward L. Wright   +15 more
doaj   +1 more source