Relativistic Jets in Active Galactic Nuclei and Microquasars

Autor: Markus Boettcher, Fabrizio Tavecchio, Gustavo E. Romero, Sera Markoff
Přispěvatelé: High Energy Astrophys. & Astropart. Phys (API, FNWI)
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Active galactic nucleus
JETS AND BURSTS
Ciencias Físicas
Astrophysics::High Energy Astrophysical Phenomena
FOS: Physical sciences
Astrophysics
Compact star
NON-THERMAL [RADIATION MECHANISMS]
01 natural sciences
purl.org/becyt/ford/1 [https]
Gravitation
Astrophysical jet
0103 physical sciences
Radiative transfer
Blazar
010303 astronomy & astrophysics
Astrophysics::Galaxy Astrophysics
High Energy Astrophysical Phenomena (astro-ph.HE)
Physics
GALACTIC WINDS AND FOUNTAINS
010308 nuclear & particles physics
Astronomy and Astrophysics
purl.org/becyt/ford/1.3 [https]
Accretion (astrophysics)
Astronomía
Particle acceleration
JETS
OUTFLOWS AND BIPOLAR FLOWS
ACTIVE AND PECULIAR GALAXIES AND RELATED SYSTEMS
Space and Planetary Science
Astrophysics - High Energy Astrophysical Phenomena
X-RAY BINARIES
CIENCIAS NATURALES Y EXACTAS
Zdroj: Space Science Reviews, 207(1-4), 5-61. Springer Netherlands
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
ISSN: 0038-6308
Popis: Collimated outflows (jets) appear to be a ubiquitous phenomenon associated with the accretion of material onto a compact object. Despite this ubiquity, many fundamental physics aspects of jets are still poorly understood and constrained. These include the mechanism of launching and accelerating jets, the connection between these processes and the nature of the accretion flow, and the role of magnetic fields; the physics responsible for the collimation of jets over tens of thousands to even millions of gravitational radii of the central accreting object; the matter content of jets; the location of the region(s) accelerating particles to TeV (possibly even PeV and EeV) energies (as evidenced by gamma-ray emission observed from many jet sources) and the physical processes responsible for this particle acceleration; the radiative processes giving rise to the observed multi-wavelength emission; and the topology of magnetic fields and their role in the jet collimation and particle acceleration processes. This chapter reviews the main knowns and unknowns in our current understanding of relativistic jets, in the context of the main model ingredients for Galactic and extragalactic jet sources. It discusses aspects specific to active Galactic nuclei (especially blazars) and microquasars, and then presents a comparative discussion of similarities and differences between them.
Accepted as Chapter in the SSSI book "Jets and Winds in Pulsar Wind Nebulae, Gamma-Ray Bursts and Blazars: Physics of Extreme Energy Release" (resulting from the ISSI Conference with the same title; Bern, Switzerland, November 16 - 20, 2015): Space Science Reviews, in press
Databáze: OpenAIRE
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