Results 81 to 90 of about 1,302 (205)

Hyperaccretion-driven Relativistic Jets from Massive Collapsars in Active Galactic Nucleus Disks

The Astrophysical Journal
The observable characteristics of gamma-ray bursts embedded in the accretion disk of active galactic nuclei (AGNs) are mainly determined by the jet propagation within the disk.
Yun-Feng Wei, Tong Liu, Bao-Quan Huang
doaj   +1 more source

Multiphase signatures of active galactic nucleus feedback in Abell 2597

Monthly Notices of the Royal Astronomical Society, 2012
We present new Chandra X-ray observations of the brightest cluster galaxy (BCG) in the cool-core cluster Abell 2597 (z= 0.0821). The data reveal an extensive kpc-scale X-ray cavity network as well as a 15-kpc filament of soft-excess gas exhibiting strong spatial correlation with archival Very Large Array radio data.
Tremblay, G., O’dea, C., Baum, S., Clarke, T., Sarazin, C.L, Bregman, J., Combes, F., Donahue, M., Edge, A., Fabian, A., Ferland, G., Mcnamara, B., Mittal, R., Oonk, J., Quillen, A., Russell, H., Sanders, J., Salomé, P., Voit, G., Wilman, R., Wise, M.   +20 more
openaire   +2 more sources

Thermal histories of El Médano 300 (EM 300) and Northwest Africa 8155 (NWA 8155): Implications for the diversity of IAB‐ungrouped iron meteorites and their parent bodies

Meteoritics &Planetary Science, EarlyView.
Abstract This study provides the first petrographic, crystallographic, and chemical comparison between El Médano 300 (EM 300) and Northwest Africa 8155 (NWA 8155), two particular IAB‐ungrouped iron meteorites. Both contain exceptionally large graphite nodules and “flowers”, providing unique insights into carbon behavior in metallic melts and cooling ...
L. Perez, M. Roskosz, F. Danoix, L. Kern, V. Megevand, C. Brillatz, B. Devouard, J. Gattacceca, M. Gounelle   +8 more
wiley   +1 more source

The SVP–FRO6 Module Integrates the Control of Leaf Senescence and Flowering in Arabidopsis

Plant, Cell &Environment, EarlyView.
ABSTRACT Plants coordinate major developmental transitions by integrating intrinsic genetic programs with environmental signals, where nutrient availability serves as a critical external factor shaping growth and fitness. Iron (Fe), an essential micronutrient for cellular respiration and photosynthesis, is strictly regulated through sophisticated ...
Hyunsu Park, Yeong Seon Yoon, Sanghoon Park, Ukcheol Jeong, Hyeyoung Choi, Hyunwoo Oh, Dovran Shamamedov, Zhonghai Li, Hye Ryun Woo   +8 more
wiley   +1 more source

Reading Dürer in Late Sixteenth‐Century Padua: Matteo Macigni (ca. 1510–1582), His Library and the Annotated Institutionum geometricarum (Paris, 1535)

Renaissance Studies, EarlyView.
ABSTRACT This article contributes to the history of material culture and intellectual biography by definitively identifying the Paduan scholar Matteo Macigni (ca. 1510–1582) as the author of the annotations found in a 1535 copy of Albrecht Dürer’s Institutionum geometricarum currently preserved in Vicenza.
Laura Moretti
wiley   +1 more source

TeV γ-Rays from the Low-luminosity Active Galactic Nucleus NGC 4278: Implications for the Diffuse Neutrino Background

The Astrophysical Journal
This work investigates the origin of the TeV emission detected by the Large High Altitude Air Shower Observatory (LHAASO) from NGC 4278, a galaxy hosting a low-luminosity active galactic nucleus (LLAGN).
Chengchao Yuan, Ruo-Yu Liu
doaj   +1 more source

Artifex Ars Cartographica: Collaboration Between Portuguese Painters and Cartographers in the Fifteenth and Sixteenth Centuries

Renaissance Studies, EarlyView.
ABSTRACT During the fifteenth and sixteenth centuries, there was no statutory difference between cartography, drawing and painting. These activities were performed then by craftsmen who were part of a vast group under the umbrella of ‘mechanical arts’ and fell under the ‘artifex’ category. Artifex were experts in any particular art, whether a craftsman,
Vasco Medeiros
wiley   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

Experimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Active Galactic Nucleus Star Dynamics Under the Influence of Outflow–Ambient Interactions

The Astrophysical Journal
Stars with outflows interacting with ambient gas experience accelerations arising from the gravitational feedback induced by the interaction structure.
Muxin Liu, Lile Wang, Peng Peng
doaj   +1 more source

Building a Continental‐Scale Geodetic Network: The Plate Boundary Observatory (PBO)

Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract The Plate Boundary Observatory (PBO) transformed the use of geodesy in North America to study crustal deformation and plate boundary processes by establishing a continental‐scale, standardized, open‐access geodetic network. Built and operated by UNAVCO between 2003 and 2018 as part of the National Science Foundation (NSF)‐funded EarthScope ...
Emily E. Zawacki, Michael E. Jackson, Glen S. Mattioli, David J. Mencin, Karl Feaux, Donna J. Charlevoix   +5 more
wiley   +1 more source