Filaments in the radio lobes of M87

Details Filaments in the radio lobes of M87 Filaments in the radio lobes of M87

Dec 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...347..713h&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 347, Dec. 15, 1989, p. 713-726.

Astronomy and Astrophysics

Astrophysics

79

Active Galaxies, Elliptical Galaxies, Galactic Structure, Radio Galaxies, Brightness Distribution, Cooling Flows (Astrophysics), Radio Jets (Astronomy), Thermal Instability, Very Large Array (Vla), Virgo Galactic Cluster

Scientific paper

A total intensity VLA image of the inner lobes of M87 at 6 cm is presented. The map has a resolution of 0.4 arcsec and a dynamic range of about 10,000. Several bright features - loops and filaments - are found within the lobes. These features appear to be overpressure compared to the surrounding gas. Several possible origins for these filaments are considered. It is shown that cooling instabilities cannot account for the features. Resistive instabilities are also unlikely unless in situ particle acceleration is occurring. Transonic turbulence or shocks in the lobes might be the most likely explanation of the features.

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