Results 141 to 150 of about 80,758 (270)

On the Properties of X-Ray Corona in Seyfert 1 Galaxies

The Astrophysical Journal
We carried out a uniform and systematic analysis of a sample of 112 nearby bright Seyfert 1 type active galactic nuclei, the observations of which were carried out by the Nuclear Spectroscopic Telescope Array between 2013 August and 2022 May.
Indrani Pal, Anju A., H. Sreehari, Gitika Rameshan, C. S. Stalin, Claudio Ricci, S. Marchesi   +6 more
doaj   +1 more source

Nucleolar dominance arises in Spartina homoploid hybrids and persists after allopolyploidization

The Plant Journal, Volume 125, Issue 5, March 2026.
Significance Statement Evolution of nucleolar dominance in Spartina anglica since its origin c. 150 years ago. mC, cytosine methylation; NOR, nucleolar organizer regions. rDNA resides within the NORs. Spartina anglica C.E. Hubbard presents an iconic allopolyploid species that formed only 150 years ago, spreading worldwide since then.
Alena Kuderová, Dalibor Húska, Julie Ferreira de Carvalho, Roman Matyášek, Ilia J. Leitch, Armel Salmon, Andrew R. Leitch, Malika Ainouche, Aleš Kovařík   +8 more
wiley   +1 more source

An Investigation of 5 yr Simultaneous X-Ray and Radio Light Curves of the Dwarf Seyfert Galaxy UGC 6728

The Astrophysical Journal
We present serendipitous simultaneous radio and X-ray light curves of the dwarf Seyfert galaxy UGC 6728 spanning 5 yr. The X-ray light curve exhibits a flaring period, followed by a gradual rise and decline.
Krista Lynne Smith, Macon Magno, Michael Koss   +2 more
doaj   +1 more source

The environments of active galactic nuclei at 3.6 μm [PDF]

, 2010
J. T. Falder, J. A. Stevens, M. J. Jarvis, M. J. Hardcastle, Mark Lacy, R. J. McLure, E. Hatziminaoglou, M. J. Page, Gordon T. Richards   +8 more
openalex   +1 more source

ABSTRACTS

Precision Radiation Oncology, EarlyView.
wiley   +1 more source

Unlocking the Power of Quercetin‐Encapsulated Mesoporous Bioactive Glass Nanoparticles: A Multifunctional Approach to Bone Regeneration

Advanced Engineering Materials, Volume 28, Issue 4, 18 February 2026.
Mesoporous bioactive glass nanoparticles (MBGNs) are investigated for bone regeneration given their remarkable structural and functional properties. MBGNs are functionalized with Mn and Cu and incorporated with quercetin, a natural flavonoid exhibiting antioxidant, anti‐inflammatory, and antimicrobial properties.
Giovanni Lo Bello, Qaisar Nawaz, Pier Francesco Ferrari, Laura Pastorino, Roberto Raiteri, Aldo R. Boccaccini   +5 more
wiley   +1 more source

An Excess of Active Galactic Nuclei Triggered by Galaxy Mergers in MaNGA Galaxies of Stellar Mass ∼1011 M ⊙

The Astrophysical Journal
To facilitate new studies of galaxy-merger-driven fueling of active galactic nuclei (AGNs), we present a catalog of 387 AGNs that we have identified in the final population of over 10,000 z < 0.15 galaxies observed by the Sloan Digital Sky Survey-IV ...
Julia M. Comerford, Rebecca Nevin, James Negus, R. Scott Barrows, Michael Eracleous, Francisco Müller-Sánchez, Namrata Roy, Aaron Stemo, Thaisa Storchi-Bergmann, Dominika Wylezalek   +9 more
doaj   +1 more source

Does the Narrow [Oiii] λ5007 Line Reflect the Stellar Velocity Dispersion in Active Galactic Nuclei? [PDF]

, 2003
Todd A. Boroson
openalex   +1 more source

Induced starburst and nuclear activity: Faith, facts, and theory [PDF]

The problem of the origin of starburst and nuclear (nonstellar) activity in galaxies is reviewed. A physical understanding of the mechanism(s) that induce both types of activity requires one to address the following issues: (1) what is the source of fuel
Shlosman, Isaac
core   +1 more source

"Fermi" bubbles are bursting from our galaxy. Their origins remain a mystery. [PDF]

Proc Natl Acad Sci U S A, 2023
Mann A.
europepmc   +1 more source