Results 41 to 50 of about 576 (185)
JWST UNCOVER: Extremely Red and Compact Object at z phot ≃ 7.6 Triply Imaged by A2744
The Astrophysical Journal, 2023 Recent JWST/NIRCam imaging taken for the ultra-deep UNCOVER program reveals a very red dropout object at z _phot ≃ 7.6, triply imaged by the galaxy cluster A2744 ( z _d = 0.308).
Lukas J. Furtak +31 more
doaj +1 more source
Loss of PI3Kδ Activity Drives Autoimmune Colitis by Impairing Extrathymic Treg Differentiation
European Journal of Immunology, Volume 55, Issue 10, October 2025.Mice with inactivated PI3Kδ develop colitis, reminiscent of immune‐related adverse effects observed in human patients treated with PI3Kδ inhibitors. We demonstrate that loss of PI3Kδ activity abrogates the Helios− peripherally induced Treg (pTreg) population in the mouse colon, resulting in inflammation and tissue damage that Helios+ thymic Tregs fail ...
Ee Lyn Lim +4 more
wiley +1 more source
Hot, Cold, and Multicomponent Accretion Flows around Supermassive Black Hole Binaries
The Astrophysical JournalWe develop a model for supermassive black hole binaries (SMBHBs) accreting below their Eddington limit, focusing on systems where hot, advection-dominated flows become viable.
Christopher Tiede, Daniel J. D’Orazio
doaj +1 more source
Evidence That Shocks Destroy Small PAH Molecules in Low-luminosity Active Galactic Nuclei [PDF]
, 2022 Lulu Zhang, Luis C. Ho, Aigen Li
openalex +1 more source
The Astrophysical Journal3C 264 is one of the few FRI radio galaxies with detected TeV emission. It is a low-luminosity active galactic nucleus (LLAGN) and is generally associated with a radiatively inefficient accretion flow (RIAF).
Ka-Wah Wong +6 more
doaj +1 more source
On the Formation and Dynamics of Micro Dew Droplets on Grass: the Role of Epicuticular Wax
Small, Volume 21, Issue 39, October 2, 2025.Despite their familiar appearance, dew droplets on grass emerge from a finely tuned interplay between environmental factors and surface architecture. Microscale analysis uncovers a key role of epicuticular wax micromorphologies in promoting the nucleation and growth of spherical droplets on the biphilic leaves of wheatgrass.
Bashra Mahamed +6 more
wiley +1 more source
“Lab‐Quakes”: Quantifying the Complete Energy Budget of High‐Pressure Laboratory Failure
AGU Advances, Volume 6, Issue 5, October 2025.Abstract Understanding the interplay of various energy sinks during seismic fault slip is essential for advancing earthquake physics and improving hazard assessment. However, quantifying the energy consumed by major dissipative processes remains a challenge.
Daniel Ortega‐Arroyo +7 more
wiley +1 more source
The Astrophysical JournalWe report on follow-up observations of the Seyfert 1.9 galaxy IC 3599 with the NASA Neil Gehrels Swift mission. The detection of a second X-ray outburst in 2010 by Swift after the first discovery of a bright X-ray outburst in 1990 by ROSAT led to the ...
Dirk Grupe, S. Komossa, Salem Wolsing
doaj +1 more source
How to Manufacture Photonic Metamaterials
Advanced Materials Technologies, Volume 10, Issue 18, September 18, 2025.Metamaterials boast applications such as invisibility and “hyperlenses” with resolution beyond the diffraction limit, but these applications haven’t been exploited in earnest and the market for them hasn’t grown much likely because facile and economical methods for fabricating them without defect has not emerged.
Apurba Paul, Gregory Timp
wiley +1 more source
Journal of Geophysical Research: Planets, Volume 130, Issue 9, September 2025.Abstract We analyze large‐scale shear zones that are exposed along the equatorial chasmata of Eastern Aphrodite Terra to understand the role of strain localization in the deformation of the Venusian crust. These shear zones dip at low angles opposite to the slopes, forming terraces that expose portions of the shear planes.
Thomas Kenkmann +2 more
wiley +1 more source