Results 91 to 100 of about 20,672 (255)
Theoretical Study of the Effects of Magnetic Field Geometry on the High-Energy Emission of Blazars
Galaxies, 2016 The knowledge of the structure of the magnetic field inside a blazar jet, as deduced from polarization observations at radio to optical wavelengths, is closely related to the formation and propagation of relativistic jets that result from accretion onto ...
Manasvita Joshi +2 more
doaj +1 more source
Multiwaveband quasi-periodic oscillation in the blazar 3C 454.3
, 2020 We report the detection of a simultaneous quasi--periodic oscillation (QPO) in $\gamma$-ray and optical light curves of the blazar 3C 454.3. Periodic flux modulations were detected in both of these wavebands with a dominant period of $\sim 47$ days. This
A. Sarkar +3 more
semanticscholar +1 more source
Complementarity of Stacking and Multiplet Constraints on the Blazar Contribution to the Cumulative High-energy Neutrino Intensity [PDF]
Astrophysical Journal, 2019 We investigate the blazar contribution to the cumulative neutrino intensity assuming a generic relationship between neutrino and gamma-ray luminosities, L ν ∝ ( L ph ) γ lw .
Chengchao Yuan, K. Murase, P. M'esz'aros
semanticscholar +1 more source
Journal of Immunology Research, Volume 2026, Issue 1, 2026.Myeloid‐derived suppressor cells (MDSCs) are a heterogeneous population of immature myeloid cells that have been increasingly defined and characterized over the past two decades, known for their remarkable capacity to expand and exert immunosuppressive effects in various pathological contexts, such as malignancies, infections, and inflammatory diseases.
Qi Liu +7 more
wiley +1 more source
Progress in Multi-wavelength and Multi-Messenger Observations of Blazars and Theoretical Challenges
Galaxies, 2019 This review provides an overview of recent advances in multi-wavelength and multi-messenger observations of blazars, the current status of theoretical models for blazar emission, and prospects for future facilities.
Markus Böttcher
doaj +1 more source
A Neutral Beam Model for High-energy Neutrino Emission from the Blazar TXS 0506+056 [PDF]
Astrophysical Journal, 2019 The IceCube collaboration reported an ∼3.5σ excess of 13 ± 5 neutrino events in the direction of the blazar TXS 0506+056 during an ∼6 month period in 2014–2015, as well as the (∼3σ) detection of a high-energy muon neutrino during an electromagnetic flare
B. Zhang +3 more
semanticscholar +1 more source
Monthly Notices of the Royal Astronomical Society, 1999 Optical polarization observations are presented of two low-luminosity flat-spectrum radio sources with optical broad lines. Both objects have significantly polarized optical continuum. The polarization is diluted by the Ha broad line, and must therefore be at least partly a continuum phenomenon.
N. Jackson, M. Marcha
openaire +1 more source
The Long-Lasting Activity in the Flat Spectrum Radio Quasar (FSRQ) CTA 102
Galaxies, 2019 The flat spectrum radio quasar CTA 102 ( z = 1 . 032 ) went through a tremendous phase of variability. Since early 2016 the gamma-ray flux level has been significantly higher than in previous years. It was topped by a four month long giant outburst,
Michael Zacharias +5 more
doaj +1 more source
Antibody based conditioning for allogeneic hematopoietic stem cell transplantation
Frontiers in Immunology, 2022 Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is a curative therapeutic option for many patients with hematological malignancies and nonmalignant hematopoietic disorders.
Asim Saha +3 more
doaj +1 more source
Propagation of very-high-energy $γ$-rays from distant blazars [PDF]
, 2023 L. J. Dong, Y. G. Zheng, S. J. Kang
openalex +1 more source