Monitoring the Giant Flare of HST-1 in the M87 Jet

Details Monitoring the Giant Flare of HST-1 in the M87 Jet Monitoring the Giant Flare of HST-1 in the M87 Jet

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007cxo..prop.2310b&link_type=abstract

Chandra Proposal ID #09700908

Physics

Chandra Proposal Id #09700908

Scientific paper

(Abridged)During 2002, HST and Chandra monitoring of the M87 jet detected a dramatic flare in knot HST-1 located ~1" from the nucleus. Its optical brightness eventually increased seventy-fold and peaked in 2005; the X-rays show a similarly dramatic outburst. In both bands HST-1 is still extremely bright and greatly out-shines the galaxy nucleus. To our knowledge this is the first incidence of an optical or X-ray outburst from a jet region which is spatially distinct from the core source; this presents an unprecedented opportunity to study the processes responsible for non-thermal variability and the X-ray emission. We propose six epochs of HST flux monitoring during Cycle 16, as well as seven epochs of Chandra/ACIS observation (5ksec each, six Chandra epochs contemporary with HST).

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