Pith. sign in

REVIEW 1 cited by

The Composition and Power of the Jet of the Broad-Line Radio Galaxy 3C 120

Not yet reviewed by Pith; the record is open.

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2202.11174 v2 pith:OAYMT2GL submitted 2022-02-22 astro-ph.HE

classification astro-ph.HE
keywords foundcalculatedrateblackcompositionequalsflowflux
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
read the original abstract

We calculated the electron-positron pair production rate at the base of the jet of 3C 120 by collisions of photons from the hot accretion flow using the measurement of its average soft gamma-ray spectrum by Compton Gamma Ray Observatory. We found that this rate approximately equals the flow rate of the leptons emitting the observed synchrotron radio-to-IR spectrum of the jet core, calculated using the extended jet model following Blandford \& Konigl. This coincidence shows the jet composition is likely to be pair-dominated. We then calculated the jet power in the bulk motion of ions, and found it greatly exceeds that achievable by the magnetically arrested disk scenario for the maximum black hole spin unless the jet contains mostly pairs. Next, we found that the magnetic flux through the synchrotron-emitting jet equals the maximum poloidal flux that can thread the black hole. Finally, we compared two estimates of the magnetization parameter at the onset of the synchrotron emission and found they are in agreement only if pairs dominate the jet content.

Discussion (0). Sign in to comment.

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Supermassive black holes and their surroundings: MeV signatures

    astro-ph.HE 2025-07 unverdicted novelty 2.0 of 10

    A review of open questions in supermassive black hole physics that argues the MeV gamma-ray band is the critical missing observational window.

Pith tools