Deep 10 Micron Imaging of M87

Details Deep 10 Micron Imaging of M87 Deep 10 Micron Imaging of M87

Nov 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001apj...561l..51p&link_type=abstract

The Astrophysical Journal, Volume 561, Issue 1, pp. L51-L54.

Astronomy and Astrophysics

Astronomy

63

Galaxies: Active, Galaxies: Elliptical And Lenticular, Cd, Galaxies: Jets, Galaxies: Nuclei, Infrared: Galaxies

Scientific paper

We analyze a 10.8 μm image of M87, obtained with the Gemini 8 m telescope + OSCIR. The image has better than 0.5" resolution and represents 7 hr of observing time, making it the deepest high-resolution mid-IR image ever. The core is marginally resolved, and we also detect five optically bright knots in the jet. The spectral energy distributions of these features are entirely consistent with synchrotron radiation; we find little evidence of thermal emission from a dusty torus. Four faint jet regions are below the noise level of these observations. We also find evidence for diffuse galactic emission. Based on observations obtained at the Gemini Observatory, which is operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the NSF on behalf of the Gemini partnership: the National Science Foundation (US), the Particle Physics and Astronomy Research Council (UK), the National Research Council (Canada), CONICYT (Chile), the Australian Research Council (Australia), CNPq (Brazil), and CONICET (Argentina).

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