Spitzer mid-infrared observations of seven bipolar planetary nebulae

  title={Spitzer mid-infrared observations of seven bipolar planetary nebulae},
  author={John Peter Phillips and Gerardo Ramos-Larios},
  journal={Monthly Notices of the Royal Astronomical Society},
We have investigated the mid-infrared (MIR) and visual structures of seven bipolar planetary nebulae (BPNe), using imaging and spectroscopy acquired using the Spitzer Space Telescope (SST), and the Observatorio Astronomico Nacional in Mexico. The results show that the sources are more extended towards longer MIR wavelengths, as well as having higher levels of surface brightness in the 5.8- and 8.0-μm bands. It is also noted that the 5.8 μm/4.5 μm and 8.0 μm/4.5 μm flux ratios increase with… 
Spitzer mid-infrared spectroscopic observations of planetary nebulae
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We present the imaging and spectroscopy of NGC 40 acquired using the Spitzer Space Telescope and the Infrared Space Observatory. These are used to investigate the nature of emission from the central
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Mid-IR observations of planetary nebulae (PNe) have revealed diffuse emission associated to their main nebular shells and outer envelopes or haloes. The interpretation of this emission is uncertain
Spitzer observations of planetary nebulae
  • Y. Chu
  • Physics
    Proceedings of the International Astronomical Union
  • 2011
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