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Hot Shocked Gas Along the Helical Jets of NGC 4258

Published online by Cambridge University Press:  12 April 2016

G. Cecil
G. Cecil*
Affiliation:
Dept. Physics & Astronomy, U. North Carolina, Chapel Hill, NC 27599, USA

Abstract

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I summarize the results of our multifrequency study of the helically twisted jets in the Seyfert galaxy NGC 4258. [N II], Hα, and [O III] Fabry-Perot datacubes obtained with the HIFI system on the U. Hawaii 2.2m telescope form the basis of this work. ROSAT x-ray multiband images (HRI & PSPC), CO spectra, and unpublished VLA 6 and 20 cm maps are correlated with these spectral grids. Together these data reveal clear signatures of high-velocity (> 300 km s−1) shocks along the jets that suggest efficient entrainment of ambient molecular gas.

Type
2. The Fabry-Perot Spectrometer and its Applications
Information
International Astronomical Union Colloquium , Volume 149: Tridimensional Optical Spectroscopic Methods in Astrophysics , 1995 , pp. 118 - 122
Copyright
Copyright © Astronomical Society of the Pacific 1995

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