Computer Science
Scientific paper
May 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006sptz.prop30803m&link_type=abstract
Spitzer Proposal ID #30803
Computer Science
Scientific paper
Our cycle-2 Spitzer IRAC observations revealed the first spectral evidence for compact jets in low-luminosity neutron star (NS) X-ray binary, and furthermore, the optically thin (`break') part of its synchrotron spectrum in 4U~0614+091. As a follow-up of this major result, we ask for simultaneous IRAC and VLA observations of 4U~0614+091 together with quasi-simultaneous MIPS observations at 24um. These multi-wavelength coverage, will give us the first complete broadband spectrum of a compact jet in a low-luminosity NS system. Low-luminosity NSs are important especially because they are the best candidate for a direct comparison of the disc/jet properties in BHs. We will measure observable jet parameters never measured before together in a NS system (e.g. the spectral index in the optically thick and optically thin part of the spectrum, and the break frequency), we will have a precise estimate of the power in the jet and, together with available simultaneous X-rays observations, we will assess the efficiency of the jet production, estimating the fraction of the accreted power that is channeled into the jet.
Fender Rob
Gallo Elena
Jonker Peter
Maccarone Thomas
Migliari Simone
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