Monitoring the ultraluminous x-ray source in NGC 5408

Details Monitoring the ultraluminous x-ray source in NGC 5408 Monitoring the ultraluminous x-ray source in NGC 5408

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003cxo..prop.1419k&link_type=abstract

Chandra Proposal ID #05400252

Computer Science

Chandra Proposal Id #05400252

Scientific paper

The ultraluminous x-ray sources (ULXs) may be stellar-mass black holes with beamed radiation or unbeamed intermediate-mass black holes. We found radio emission from a ULX in the dwarf irregular galaxy NGC 5408. The x-ray, radio, and optical properties are consistent with beamed relativistic jet emission from a stellar-mass black hole. We propose to monitor the source with simultaneous observations with Chandra and the VLA. If the x-ray emission is inverse-Compton emission from a jet, then the x-ray and radio properties should be coupled. Demonstration of a robust correlation between the x-ray and radio emission would be strong evidence in favor of the beamed microquasar interpretation. Uncorrelated variations in the two bands would rule out the beamed microquasar interpretation.

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