Mid-IR observations of young pulsars

Details Mid-IR observations of young pulsars Mid-IR observations of young pulsars

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sptz.prop.3696s&link_type=abstract

Spitzer Proposal ID #3696

Computer Science

Scientific paper

PSR B0656+14 and the Vela pulsar are the brightest intermediate-age pulsars which have been extensively studied in both X-rays and NIR/optical/UV. The spectra of these pulsars exhibit both the thermal component, emitted from the hot neutron star surface, and the non-thermal component, originating in the NS magnetosphere. In addition, the wide-band optical/NIR photometry of PSR B0656+14 has provided evidence for spectral feature(s) between 0.3 and 1.5 microns. However, the level and the slope of the non-thermal continuum has not yet been accurately measured. The proposed observations will significantly extend the spectral coverage toward longer wavelengths and provide the measurement of the non-thermal continuum with a much higher accuracy. This will allow us to discriminate between different magnetosphere emission models, further constrain the properties of thermal emission, and asses the significance of the spectral features. The mid-IR sensitivity of Spitzer opens an opportunity to study this yet unexplored part of pulsar spectra. We will also obtain the deepest IR image of the Vela pulsar field and possibly detect emission from the pulsar-wind nebula that so far has been studied only in the radio and X-rays.

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