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Related papers: Issues in Blazar Research

200 papers

Jets, collimated outflows of particles and fields, are observed in a wide variety of astrophysical systems, including Active Galactic Nuclei of various types, microquasars, gamma-ray bursts, and young stellar objects. Despite intensive…

High Energy Astrophysical Phenomena · Physics 2021-06-29 Gustavo E. Romero

This paper discusses some topics of enquiry concerning fractals, functions on them, and so on.

Classical Analysis and ODEs · Mathematics 2007-05-23 Stephen Semmes

We present a new set of optical polarization plane rotations in blazars, observed during the third year of operation of RoboPol. The entire set of rotation events discovered during three years of observations is analysed with the aim of…

During this conference, latest results on helioseismology (both local and global) as well as in asteroseismology have been reviewed, the hottest questions discussed and the future prospects of our field fully debated. A conference so rich…

Solar and Stellar Astrophysics · Physics 2013-06-18 R. A. Garcia

The theory part of the conference is summarized with certain emphasis on the results concerning the pomeron in soft and hard processes.

High Energy Physics - Phenomenology · Physics 2007-05-23 J. Kwiecinski

The recent launch of Fermi / GLAST - coinciding with the MAXI workshop - opens a new era for studies of jet-dominated active galaxies, known as blazars. While the emission processes operating in various spectral bands in blazars are…

Astrophysics · Physics 2008-10-13 Greg Madejski , Jun Kataoka , Marek Sikora

The connection between collimation and acceleration of magnetized relativistic jets is discussed. The focus is on recent numerical simulations which shed light on some longstanding problems.

High Energy Astrophysical Phenomena · Physics 2010-01-12 Ramesh Narayan , Alexander Tchekhovskoy , Jonathan C. McKinney

We summarize the main motivations to study event shapes at hadron colliders. In addition we present classes of event shapes and show their complementary sensitivities to perturbative and non-perturbative effects, namely jet hadronization…

High Energy Physics - Phenomenology · Physics 2008-11-26 G. Zanderighi

This is a brief introduction to two of the central concepts in perturbative quantum chromodynamics, jets and factorization, which serve as windows into the short-distance behavior of quantum fields.

High Energy Physics - Phenomenology · Physics 2015-06-23 George Sterman

We propose a unified classification for BL Lac objects (BLs), focusing on the synchrotron peak frequency of the spectral energy distribution. The unification scheme is based on the angle Theta that describes the orientation of the…

Astrophysics · Physics 2016-08-30 Markos Georganopoulos , Alan P. Marscher

Blazars are thought to possess a relativistic jet that is pointing toward the direction of the Earth and the elect of relativistic beaming enhances its apparent brightness. They radiate in all wavebands from the radio to the gamma-ray bands…

High Energy Astrophysical Phenomena · Physics 2015-02-11 Ryosuke Itoh , Yasushi FUkazawa , Yasuyuki T. Tanaka , Makoto Uemura , Koji S. Kawabata , Hiroshi Akitaya , Kenji Kawaguchi , Yuka Kanda

The solar atmosphere is full of complicated transients manifesting the reconfiguration of solar magnetic field and plasma. Solar jets represent collimated, beam-like plasma ejections; they are ubiquitous in the solar atmosphere and…

Solar and Stellar Astrophysics · Physics 2021-02-09 Yuandeng Shen

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. The discussion of…

High Energy Astrophysical Phenomena · Physics 2019-01-16 Markus Boettcher

The multiwavelength spectra of blazars appear to be dominated by nonthermal emission from a relativistic jet oriented close to the line of sight. The recent detection of many blazars at gamma-ray energies strongly supports this scenario.…

Astrophysics · Physics 2009-10-30 C. Megan Urry

This is a summary of the `Astronomy Perspective' of the 4th meeting on 'Statistical Challenges in Modern Astronomy' held at Penn State University in June 2006. We comment on trends in the Astronomy community towards Bayesian methods and…

Astrophysics · Physics 2007-05-23 Ofer Lahav

In recent years, blazar surveys at radio and X-ray energies have greatly increased our understanding of this type of active galaxy. The combination of multi-wavelength data has shown that blazars follow a well defined sequence in terms of…

Astrophysics · Physics 2007-05-23 I. de la Calle Perez

In these talks, I discuss a few selected topics in integrable models that are of interest from various points of view. Some open questions are also described.

High Energy Physics - Theory · Physics 2017-08-23 Ashok Das

The recent results on hadron multiplicities in heavy and light quark fragmentation, multiplicity local fluctuations and multiparticle correlations submitted to the Conference are reviewed.

High Energy Physics - Experiment · Physics 2009-11-07 Edward K. G. Sarkisyan

Blazars are a highly-variable, radio-loud subclass of active galactic nuclei (AGN). In order to better understand such objects we must be able to easily identify candidate blazars from the growing population of unidentified sources. Working…

High Energy Astrophysical Phenomena · Physics 2015-06-16 Philip S. Cowperthwaite , F. Massaro , R. D'Abrusco , A. Paggi , G. Tosti , Howard A. Smith

Recent developments in theory and phenomenology relevant to deep inelastic lepton scattering are reviewed, concentrating on the following topics: Predicted behaviour of non-singlet and polarized structure functions at small $x$; Theoretical…

High Energy Physics - Phenomenology · Physics 2007-05-23 B. R. Webber