Results 41 to 50 of about 1,170,090 (200)
Radio-to-γ-Ray, Broadband Variability Study of the Classical BL Lac Object PKS 0735+178
Galaxies, 2016 The power-law shape of the power spectral density (PSD) of blazar light curves— P ( ν k ) ∝ ν k − β , where ν k is the temporal frequency—indicates that blazar variability is, in general, of the colored-type noise ( β ≃ 1 − 3 )
Arti Goyal +3 more
doaj +1 more source
First Results on Long-Term Multiwavelength Variability Analysis in Mrk 421
EPJ Web of Conferences, 2013 Due to the broad-band nature of the emission from blazars, strong efforts are being placed in recent years on simultaneous multiwavelength campaigns as a way to understand the mechanisms responsible for the acceleration of ultra-relativistic particles in
Racero Elena, de la Calle Ignacio
doaj +1 more source
Study of Variability in Long-term Multiwavelength Optical Lightcurves of Blazar AO 0235+164
The Astrophysical Journal Supplement Series, 2023 We present a long-term and intraday variability study of optical multiwaveband ( U BV RI ) data from the blazar AO 0235+164 collected by various telescopes for ∼44 yr (1975–2019).
Abhradeep Roy +11 more
doaj +1 more source
CHARGE-STARVED, RELATIVISTIC JETS AND BLAZAR VARIABILITY [PDF]
The Astrophysical Journal, 2011 8 pages, 1 figure. Momentum equation corrected. Conclusions unchanged.
Kirk, J., Mochol, I.
openaire +4 more sources
Turbulent Cell Interpretation of Micro-Variability of BL Lacertae: Polarization
GalaxiesWe present the results of the analysis of nine polarization and micro-variability observations of BL Lacertae using a turbulent cell model. We perform a similar analysis of a simulated TEMZ light curve generated with the Turbulent Extreme Multi-Zone ...
James R. Webb +4 more
doaj +1 more source
Multi-wavelength Study of Blazars Using Variability as a Tool [PDF]
Journal of Astronomy and Space Sciences, 2016 Active galactic nuclei (AGN) are too compact to be resolved by any existing optical telescope facility, making it difficult to understand their structure and the emission processes responsible for their huge energy output.
Kiran S. Baliyan +4 more
doaj +1 more source
Astroparticle Physics, 1999 The kinetic energy of bulk relativistic plasma ejected from the central engine of blazars is converted into nonthermal particle energy in the comoving frame through a process of sweeping up material from the surrounding medium. The resulting deceleration of the bulk plasma introduces a number of effects which must be included in blazar modeling.
openaire +2 more sources
A new sample of faint Blazar cAndidates with Strong opticAl variabiLiTy (BASALT)
Astronomy & AstrophysicsWe present a sample of blazar candidates from the Very Large Array Sky Survey (VLASS) catalog, with cross-referencing to optical and infrared data from the Panoramic Survey Telescope & Rapid Response System (Pan-STARRS) and the Wide-Field Infrared Survey
Casadei Samantha +4 more
doaj +1 more source
Multiwavelength analysis of the variability of the blazar 3C 273. [PDF]
Mon Not R Astron Soc, 2020 ABSTRACT We present multiwavelength light curves and polarimetric data of the Flat Spectrum Radio Quasar 3C 273 over 8 yr. The wavelength range of our data set extends from radio to gamma-rays. We found that the optical emission in this source is dominated by the accretion disc during the entire time-frame of study.
Fernandes S +4 more
europepmc +5 more sources
Numerical Simulations of Blazar Jets and their Non-thermal Radiation [PDF]
, 2004 In the past years relativistic (magneto)hydrodynamic simulations have been used extensively to study the time-dependent hydrodynamic properties of extra galactic jets.
Mimica, Petar, Mimica, P.
core +1 more source