A Mid-Infrared Cometary Nebula near A Pulsar

Details A Mid-Infrared Cometary Nebula near A Pulsar A Mid-Infrared Cometary Nebula near A Pulsar

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21545333w&link_type=abstract

American Astronomical Society, AAS Meeting #215, #453.33; Bulletin of the American Astronomical Society, Vol. 42, p.468

Astronomy and Astrophysics

Astronomy

Scientific paper

We report the discovery of a mid-infrared cometary nebula in our Spitzer survey of a few middle-aged radio pulsars. We carried out multi-wavelength imaging and spectroscopic observations of the nebula, and detected it in Spitzer/IRAC 8.0, 24, and 70 micron imaging and in Spitzer/IRS spectroscopic observations. These data were analyzed in detail. We find that the nebula can be well fit with a standard bow-shock shape, and it has a thermal origin, arising from heated dust. However, thus far the source that drives the nebula can not be determined. Although the pulsar, J1549-4848, is surrounded by the nebula, its position is a few arcsec away from the region that is near the apex of the bow shock, at which the associated source should be located.

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