Kiloparsec-scale Jets: Physics, Emission Mechanisms, and Challenges

Kavli Affiliate: Herman Marshall

| First 5 Authors: Eric S. Perlman, Eileen Meyer, Jean Eilek, Sasha Tchekhovskoy, Kristina Nyland

| Summary:

Jets are a ubiquitous part of the accretion process, created in AGN, by a
coupling between the magnetic field near the central black hole and inflowing
material. We point out what advances can be achieved by new technologies,
concentrating on kiloparsec scales, beyond the Bondi radius, where accretion
stops. Here, jets profoundly influence their host galaxy and the surrounding
clusters and groups, transporting prodigious amounts of matter and energies to
scales of hundreds of kpc. Basic questions still remain regarding jet physics,
which new instruments can advance greatly. The ngVLA, LOFAR, JWST and LUVOIR,
as well as a Chandra successor, will give higher angular resolution and
sensitivity. This will allow us to probe the emission mechanisms and dynamics
of jets, and search for links between these areas, magnetic fields, particle
acceleration and high-energy emission mechanisms. We stress the need for
polarimetry in the X-ray and optical, critical to many of the most important
questions in jet physics. We hope to directly probe resolved, flaring
components, which for the first time will allow us to reveal how jets respond
to stimuli and link statics and dynamics.

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