X-ray Variability and Emission Process of the M87 Jet

Details X-ray Variability and Emission Process of the M87 Jet X-ray Variability and Emission Process of the M87 Jet

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...20113805h&link_type=abstract

American Astronomical Society, 201st AAS Meeting, #138.05; Bulletin of the American Astronomical Society, Vol. 34, p.1322

Astronomy and Astrophysics

Astronomy

Scientific paper

We monitored the M87 jet with the ACIS-S detector on Chandra with 5 observations between 2002 Jan and 2002 Jul. Our goal was to determine the presence and degree of variability in morphology, intensity, and spectral parameters. We find strong variability of the core and HST-1 (the knot lying 0.8'' from the core). These observations were designed to constrain the X-ray emission process: whereas synchrotron emission would necessitate the presence of extremely high energy electrons with a half-life of a few years or less, inverse Compton emission from a relativistic jet would arise from very low energy electrons with very long half-lives. Currently, all indications point to a synchrotron process for the X-ray jet emission from M87. This work was supported by NASA contract NAS8-39073 and grant GO2-3144X.

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