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… Expand
Spitzer mid-infrared spectroscopic observations of planetary nebulae
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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 uncertainExpand
Spitzer observations of planetary nebulae
  • Y. Chu
  • Physics
  • Proceedings of the International Astronomical Union
  • 2011
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GRL acknowledges support from Universidad de Guadalajara (Apoyo de Estancias Academicas - RG/003/2017), CONACyT, CGCI, PRODEP, and SEP (Mexico). MAG also acknowledges support of the grant AYAExpand


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