Deep Hubble space telescope ultraviolet imaging of the M87 jet |
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| Authors: | Juan P Madrid William B Sparks D E Harris Eric S Perlman Duccio Macchetto John Biretta |
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| Institution: | (1) Space Telescope Science Institute, Baltimore, MD 21218, USA;(2) Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, USA;(3) Florida Institute of Technology, Melbourne, FL, USA;(4) European Space Agency, affiliated with the Space Telescope Division of the European Space Agency, ESTEC, Noordwijk, The Netherlands |
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| Abstract: | Near-ultraviolet imaging with HST offers the best possible spatial resolution currently available for optical/UV astronomical
imaging. The giant elliptical galaxy M87 hosts one of the most spectacular, best studied and nearest (d=16 Mpc) galactic-scale relativistic (synchrotron emitting plasma) jets. We have extracted from the HST archive all 220 nm
images of the jet of M87, taken with the STIS MAMA camera and co-added them to provide the deepest image ever at this wavelength.
The combination of highest spatial resolution and long integration time, 42500 seconds, reveals a wealth of complex structure,
knots, filaments and shocks. We compare this image with deep X-ray observations obtained with the Chandra X-ray telescope. |
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| Keywords: | Galaxies: jets Galaxies: active Galaxies: elliptical and lenticular cD |
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