Results 21 to 30 of about 2,193 (179)
Universe, 2023 In this work, we study the parameter space of neutrino-emitting BL Lacs under the framework of the one-zone lepto-hadronic model. We show that constraints on the model come from various aspects of observations such as the variability timescale of blazar ...
Zhi-Peng Ma, Kai Wang
doaj +1 more source
Jetted Narrow-Line Seyfert 1 Galaxies & Co.: Where Do We Stand?
Universe, 2020 The discovery in 2008 of high-energy gamma-rays from Narrow-Line Seyfert 1 Galaxies (NLS1s) made it clear that there were active galactic nuclei (AGN) other than blazars and radio galaxies that can eject powerful relativistic jets.
Luigi Foschini
doaj +1 more source
Regulatory T Cells and Nanomaterials: Dual Perspectives in Therapeutics and Immunomodulation. [PDF]
Small SciTregs control immune tolerance but can also enable tumor escape. Nanomaterials can now expand or stabilize Tregs to treat autoimmunity and support transplantation or conversely disrupt tumor Tregs to boost antitumor immunity. We also discuss unintended Treg modulation by nanoparticles, safety and manufacturing challenges, and future translational ...
Chen Y +10 more
europepmc +2 more sources
Radio core-dominance of Fermi-blazars: implication for blazar unification [PDF]
Astrophysics and Space Science, 2021 ...The distribution of radio core-dominance is consistent with average projection angles of 13.5, 14.8, 16.8, 20.4, and 28.2 for ISPs, LSPs, FSRQs, HSPs, and radio galaxies, respectively. Linear regression analyses of our data yield significant anti-correlation r greater than 0.60 between core-dominance parameter and extended luminosity in each ...
E. U. Iyida, F. C. Odo, A. E. Chukwude
openaire +2 more sources
Polarimetric Properties of Blazars Caught by the WEBT
Galaxies, 2021 Active galactic nuclei come in many varieties. A minority of them are radio-loud, and exhibit two opposite prominent plasma jets extending from the proximity of the supermassive black hole up to megaparsec distances.
Claudia M. Raiteri, Massimo Villata
doaj +1 more source
From the ‘blazar sequence' to unification of blazars and radio galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 7 pages, 2 table, 5 figures, accepted for publication in ...
Xiong, Dingrong +3 more
openaire +2 more sources
AIP Conference Proceedings, 2001 Invited talk at "International Symposium on High Energy Gamma-Ray Astronomy", Heidelberg, Eds. F. Aharonian and H.
Sikora, M., Madejski, G.
openaire +3 more sources
Multifrequency Study of the Blazar 3C 454.3
Galaxies, 2016 This work is devoted to multi-frequency studying of the blazar 3C 454.3. The study includes spectroscopic and photometric observations in the optical, IR, and gamma-ray bands.
Ilhuiyolitzin Villicaña-Pedraza +3 more
doaj +1 more source
The Astrophysical Journal, 2023 Among the ∼2157 unassociated sources in the third data release (DR3) of the fourth Fermi catalog, ∼1200 were observed with the Neil Gehrels Swift Observatory pointed instruments.
Amanpreet Kaur +2 more
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Accretion discs in blazars [PDF]
Monthly Notices of the Royal Astronomical Society, 2009 Accepted for publication (17 August 2009) in ...
Jolley, E. J. D. +3 more
openaire +3 more sources