Pushing the limits: detecting H2 emission from faint bipolar planetary nebulae in the IPHAS sample

@article{RamosLarios2017PushingTL,
  title={Pushing the limits: detecting H2 emission from faint bipolar planetary nebulae in the IPHAS sample},
  author={Gerardo Ramos-Larios and Mart{\'i}n A. Guerrero and Laurence Sabin and Edgar Santamaria},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2017},
  volume={470},
  pages={3707-3719}
}
We have obtained deep narrowband images in the near-infrared H2 (2.122 microns) emission line for a sample of 15 faint Isaac Newton Telescope Photometric Halpha Survey (IPHAS) bipolar planetary nebulae (PNe) to search for molecular material. H2 emission is found in most of them (14 out of 15), mostly associated with rings at their equatorial regions and with their bipolar lobes. These detections add to the high occurrence of H2 emission among bipolar PNe reported in previous works, resulting… 

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