Results 31 to 40 of about 20,672 (255)
3HSP J095507.9+355101: A flaring extreme blazar coincident in space and time with IceCube-200107A [PDF]
Astronomy & Astrophysics, 2020 The uncertainty region of the highly energetic neutrino IceCube200107A includes 3HSP J095507.9+355101 (z = 0.557), an extreme blazar, which was detected in a high, very hard, and variable X-ray state shortly after the neutrino arrival.
P. Giommi +5 more
semanticscholar +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
doaj +1 more source
A Multimessenger Picture of the Flaring Blazar TXS 0506+056: Implications for High-energy Neutrino Emission and Cosmic-Ray Acceleration [PDF]
Astrophysical Journal, 2018 Detection of the IceCube-170922A neutrino coincident with the flaring blazar TXS 0506+056, the first and only ∼3σ high-energy neutrino source association to date, offers a potential breakthrough in our understanding of high-energy cosmic particles and ...
A. Keivani +18 more
semanticscholar +1 more source
Testing the blazar spectral sequence: X-ray-selected blazars [PDF]
Monthly Notices of the Royal Astronomical Society, 2008 11 figures and 6 tables.
Maraschi, L. +4 more
openaire +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
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
Blazar Flares as an Origin of High-energy Cosmic Neutrinos? [PDF]
Astrophysical Journal, 2018 We consider implications of high-energy neutrino emission from blazar flares, including the recent event IceCube-170922A and the 2014–2015 neutrino flare that could originate from TXS 0506+056. First, we discuss their contribution to the diffuse neutrino
K. Murase, F. Oikonomou, M. Petropoulou
semanticscholar +1 more source
Immunohistopathology of oral mucosal chronic graft‐versus‐host disease severity and duration
Oral Diseases, Volume 29, Issue 8, Page 3346-3359, November 2023., 2023 Abstract Objective Chronic graft‐versus‐host disease (cGVHD) is the main cause of late non‐relapse mortality following hematopoietic cell transplantation. Oral mucosal (om‐) cGVHD is common, but diagnosis and assessment rely on clinical interpretation and patient‐reported symptoms.
Victor Tollemar +8 more
wiley +1 more source
Polarimetric Monitoring of Jets with Kanata Telescope
Galaxies, 2018 The polarization of relativistic jets is of interest for the understanding of their origin, confinement, and propagation. However, even though numerous measurements have been performed, the mechanisms behind jet variability, creation, and composition are
Ryosuke Itoh +3 more
doaj +1 more source
Astronomical Journal, 2021 Blazars represent about 62% of the sources in the γ-ray Fermi-LAT catalog, and about 80% of the γ-ray sources associated with a lower-energy counterpart, dominating the γ-ray sky.
H. Peña-Herazo +16 more
semanticscholar +1 more source