Results 21 to 30 of about 24,339 (257)
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
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
X-ray Spectral Evolution of High Energy Peaked Blazars
Galaxies, 2020 The synchrotron hump of the high energy peaked blazars generally lies in the 0.1–10 keV range and such sources show extreme flux and spectral variability in X-ray bands. Various spectral studies showed that the X-ray spectra of high energy peaked blazars
Haritma Gaur
doaj +1 more source
A tool to understand emission mechanisms of blazars through their high‐energy gamma‐ray emission
Astronomische Nachrichten, Volume 344, Issue 6, August 2023., 2023 The blazar SED is characterized by two energy components. Evidence suggests that the low‐energy component is generated by the synchrotron mechanism, but for the high‐energy component, the mechanism is still uncertain. Two main models have been proposed to explain this emission. According to the leptonic model, a correlation between the emission of both
Mabel Osorio +3 more
wiley +1 more source
Multi-Wavelength Intra-Day Variability and Quasi-Periodic Oscillation in Blazars
Galaxies, 2017 We reviewed multi-wavelength blazars variability and detection of quasi-periodic oscillations on intra-day timescales. The variability timescale from a few minutes to up to less than a days is commonly known as intra-day variability.
Alok C. Gupta
doaj +1 more source
The impact of guardian's usage of the Internet on children's cognitive skills
International Studies of Economics, Volume 18, Issue 2, Page 193-210, June 2023., 2023 Abstract In the digital age, the internet has become an essential source of information gathering and maintains a network of social contact. In this paper, we use microdata from the China Family Panel Studies to examine the effects of guardian's internet use on teenager's cognitive skills.
Guangsu Zhou, Keyi Guo
wiley +1 more source
The Blazar Sequence and Its Physical Understanding
Galaxies, 2022 Introduced in 1998 to attempt a first unified view of the broad-band emission properties of blazars, the blazar sequence has been extensively used in the past 25 years to guide observations as well as the physical interpretation of the overall emission ...
Elisa Prandini, Gabriele Ghisellini
doaj +1 more source
Discovery of Hidden Blazars [PDF]
Science, 2001 Every radio-loud quasar may have blazar activities, according to a unified scheme where the differences in both optical and radio observations of radio-loud quasars are the result of different viewing angles. We have predicted that blazars may be detected using emission line ratio variations caused by variable illumination of gas clouds in the broad ...
Ma, Feng, Wills, Beverley J.
openaire +3 more sources
Radio variability of 1st 3-months Fermi blazars at 5 GHz: affected by interstellar scintillation? [PDF]
, 2011 Blazars from the first-three-months Fermi-AGN list were observed with the Urumqi 25m radio telescope at 5GHz in IDV (Intra-Day Variability) mode and inter-month observation mode.
A Kraus +13 more
core +1 more source
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