Results 71 to 80 of about 1,814 (225)

Dissipation of AGN Jets in a Clumpy Interstellar Medium

The Astrophysical Journal
Accreting supermassive black holes frequently power jets that interact with the interstellar medium (ISM)/circumgalactic medium, regulating star formation in the galaxy.
Riju Dutta, Prateek Sharma, Kartick C. Sarkar, James M. Stone   +3 more
doaj   +1 more source

AGN Feedback Signatures in UV Emission

Galaxies
Supermassive black holes (SMBH) are believed to influence galaxy evolution through AGN (active galactic nuclei) feedback. Galaxy mergers are key processes of galaxy formation that lead to AGN activity and star formation.
K. Rubinur
doaj   +1 more source

Halo ejection in distant radio galaxies: jet feedback in massive galaxy formation

Astrophysics and Space Science, 2007
We present results from a Keck optical and near IR spectroscopic study of the giant emission line halos of the z > 3 High Redshift Radio Galaxies (HiZRGs) 4C 41.17, 4C 60.07 and B2 0902+34. The outer regions of these halos show quiet kinematics with typical velocity dispersions of a few hundred km s^(−1) and velocity shears consistent with rotation ...
Dopita, Michael A., Reuland, Michiel, van Breugel, Wil, de Vries, Wim, Stanford, S. A., Röttgering, Huub, Miley, George, Venemans, Bram, Spinrad, Hy, Dawson, Steve, Dey, Arjun, Lacy, Mark, Stern, Daniel, Bunker, Andrew   +13 more
openaire   +3 more sources

Sequence‐Driven Modulation of the Multistage Self‐Assembly Process in Lamellin‐Type β‐Peptides

Aggregate, Volume 7, Issue 2, February 2026.
Schematic representation of assembly formation with the five identified stages (I–V) based on representative TEM images: stage I: formation of oligomers, stage II: twisted strands, stage III: lamellae, stage IV: bundles, and stage V: macroscopic lamellar clusters.
Imola Cs. Szigyártó, Kristóf Ferentzi, András Wacha, Kamal el Battioui, Olivér Pavela, Vignesh Udyavara Nagaraj, Viktor Farkas, Tamás Beke‐Somfai   +7 more
wiley   +1 more source

Relativistic jets in narrow-line Seyfert 1 galaxies. New discoveries and open questions

EPJ Web of Conferences, 2013
Before the launch of the Fermi satellite only two classes of AGNs were known to produce relativistic jets and thus emit up to the γ-ray energy range: blazars and radio galaxies, both hosted in giant elliptical galaxies.
D’Ammando F., Orienti M., Finke J., Larsson J., Giroletti M.   +4 more
doaj   +1 more source

Bursty Precipitation of Relativistic Electrons Unveiled by CIRBE/REPTile‐2 Measurements and Their Physical Implications

AGU Advances, Volume 7, Issue 1, February 2026.
Abstract Energetic electron precipitation plays a pivotal role in shaping Earth's radiation belt dynamics and drives significant physical and chemical changes in the upper atmosphere. However, the detailed mechanisms governing the loss of relativistic electrons have remained unclear, largely due to the limited energy coverage and coarse resolution of ...
Zheng Xiang, Xinlin Li, Daniel N. Baker, Qianli Ma, Yang Mei, Declan O’Brien, Hong Zhao, David Brennan, Theodore Sarris, Yoshizumi Miyoshi, Yoshiya Kasahara, Takefumi Mitani, Takeshi Takashima, Michael A. Temerin   +13 more
wiley   +1 more source

First Detection of γ-Ray Emission from the Compact Symmetric Object JVAS J1311+1658

The Astrophysical Journal
We report the first detection of γ -ray emission from the young radio galaxy JVAS J1311+1658, classified as a compact symmetric object (CSO). This detection is characterized by a recent GeV γ -ray flare identified in Fermi-Large Area Telescope data ...
Xiong Jiang, Yang-Ji Li, Hai Lei, Da-Ming Wei   +3 more
doaj   +1 more source

Evaluating Antibiotic Resistance in Urban Rivers and Coral Reefs of Belize: Evidence for Hotspots and a Potential Screening Tool

GeoHealth, Volume 10, Issue 2, February 2026.
Abstract Antibiotic resistance is a significant threat to global public health and can disproportionately affect low‐ and middle‐ income countries (LMICs). There is a lack of studies focusing on antibiotic resistance in coral reef regions and environmental reservoirs in Central America.
Ileana A. Galdamez, Karina Jimenez, Marisol Cira, Katie Osborn, Mariam Ayad, Christine M. Lee, Kai Patel, Bryan A. Galdamez, Ashlyn Sloan, Alexis Shenkiryk, Taylor Cason, Nicole Auil Gomez, Myles Phillips, Samir Rosado, Andria Rosado, Deepak R. Mishra, Emil A. Cherrington, Robert Griffin, Jennifer A. Jay   +18 more
wiley   +1 more source

Quantum GraviElectro Dynamics

Annalen der Physik, Volume 538, Issue 1, January 2026.
The BRST invariant Lagrangian of the gravitationally interacting U(1)$U(1)$ gauge theory, namely the Quantum GraviElectro Dynamics (QGED). The Yan–Mills theory with the Hilbert–Einstein gravitational Lagrangian, namely the Yang–Mills–Utiyama (YMU) theory, is defined and quantised using the standard procedure. The theory is perturbatively renormalisable,
Yoshimasa Kurihara
wiley   +1 more source

Natal Kick by Early-asymmetrical Pairs of Jets to the Neutron Star of Supernova Remnant S147

The Astrophysical Journal
We analyze the bipolar morphology of the jet-shaped core-collapse supernova remnant (CCSNR) S147 and its neutron star (NS) kick velocity, and suggest that two pairs of unequal, opposite jets contributed to the NS kick velocity.
Dmitry Shishkin, Ealeal Bear, Noam Soker
doaj   +1 more source