The parsec-scale jet in M87. | Zendy

J. A. Biretta | Zendy; W. Junor | Zendy

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The parsec-scale jet in M87.

Author(s) -

J. A. Biretta,

W. Junor

Publication year - 1995

Publication title -

proceedings of the national academy of sciences

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.011

H-Index - 771

eISSN - 1091-6490

pISSN - 0027-8424

DOI - 10.1073/pnas.92.25.11364

Subject(s) - superluminal motion , physics , astrophysics , jet (fluid) , scale (ratio) , parsec , accretion (finance) , astrophysical jet , oscillation (cell signaling) , flux (metallurgy) , collimated light , active galactic nucleus , galaxy , mechanics , optics , laser , materials science , quantum mechanics , biology , metallurgy , genetics

We briefly review the observed structure and evolution of the M87 jet on scales less, similar1 parsec (pc; 1 pc = 3.09 x 10(16) m). Filamentary features, limb-brightening, and side-to-side oscillation are common characteristics of the pc-scale, and kpc-scale jets. The most prominent emission features on both the pc and subpc scales appear stationary (v/c < 0.1). Nonetheless, based on the jet's flux evolution, the presence of kpc-scale superluminal motion, and the absence of a visible counter-jet, we argue for the presence of an underlying relativistic flow, consistent with unified models. The initial jet collimation appears to occur on scales <0.1 pc, thus favoring electromagnetic processes associated with a black hole and accretion disk.

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