Results 81 to 90 of about 1,170,090 (200)
Long-Term Optical Monitoring of Blazars
Galaxies, 2019 Systematic monitoring of specific targets in the optical regime was historically applied on a very narrow sample of known variable stars. The discovery of blazars in the 20th century brought to the foreground the need for new global sky surveys, covering
Kosmas Gazeas
doaj +1 more source
Review of Education, Volume 12, Issue 3, December 2024.Abstract The world map is changing due to waves of immigration, population and demographic changes in mainland Europe and North America. There is a growing need for a more diverse teacher workforce to close the racial and ethnic gap between students and teachers in populations with high diversity.
Eman Abo‐Zaed Arar, Ahmed Tlili
wiley +1 more source
Synchrotron emission from blazar jets - energy distributions and radio variability [PDF]
, 2010 This thesis studies the synchrotron radiation of blazars from two perspectives: the spectral energy distributions, and radio emission and its variability.
Nieppola, Elina
core +1 more source
Energy-dependent Polarization Angle Variability as a Robust Diagnostic for Blazar Flaring Mechanisms
The Astrophysical JournalIdentifying the physical mechanism driving blazar flares remains a central challenge in high-energy astrophysics. We show that the energy dependence of the standard deviation of the polarization angle variability ( σ _PA ) provides a powerful and robust ...
Haocheng Zhang +4 more
doaj +1 more source
Lessons from the apparent peculiar nature of the star TYC 6544‐3483‐1
Astronomische Nachrichten, Volume 345, Issue 4, May 2024.Abstract We report a radio and optical study of the star TYC 6544‐3483‐1 originally selected as a follow‐up target in the course of our efforts to cross‐identify Galactic high‐energy sources. The star by itself finally turned out to be a very ordinary main‐sequence star despite the initial expectations that apparently pointed to the contrary.
Josep Martí +5 more
wiley +1 more source
Estudio de la variabilidad multifrecuencia del blazar TON 599
, 2023 In the context of Active Galactic Nuclei (AGNs), the study of blazars holds significant importance due to their high variability across multiple wavelengths.
Jonhatan Uriel Guerrero González
core
Investigating Broadband Variability Of The Tev Blazar 1es 1959+650 [PDF]
, 2014 We summarize broadband observations of the TeV-emitting blazar 1ES 1959+650, including optical R-band observations by the robotic telescopes Super-LOTIS and iTelescope, UV observations by Swift Ultraviolet and Optical Telescope, X-ray observations by the
Reynolds, P. T., VERITAS
core +2 more sources
TESOL Quarterly, Volume 58, Issue 1, Page 138-167, March 2024.Abstract This multisite qualitative case study explores ways in which instructional coaching focused on English language development (content) and teachers' individual beliefs (process) can help general education and dual language bilingual education elementary teachers work within and through perceived institutional barriers to improve their language ...
Jennifer Renn +4 more
wiley +1 more source
Multiwavelength study of the gamma-ray blazar PKS 1424+240: a neutrino candidate [PDF]
openThis thesis regards the study of the very-high energy (VHE; E>100 GeV) gamma-ray emission of the blazar PKS 1424+240 observed with the MAGIC telescopes.
FOGLIACCO, SARA
core
X-ray Variability of Blazars [PDF]
Publications of the Astronomical Society of Australia, 2002 AbstractCritical progress in our understanding of high energy emission from AGN has been determined in the last 10 years by X-ray monitoring campaigns with many space missions, notably ROSAT, ASCA, RXTE, BeppoSAX, and XMM, often in conjunction with observations at other frequencies.
openaire +2 more sources