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New faint planetary nebulae from the DSS and SDSS

  • Matthias Kronberger (a1), George H. Jacoby (a2), Robin Ciardullo (a3), Richard D. Crisp (a1), Orsola De Marco (a4), Dimitri Douchin (a4), David J. Frew (a4), Dianne Harmer (a5), Mike Howell (a1), Steve B. Howell (a6), Quentin A. Parker (a4) (a7), Dana Patchick (a1), Travis Rector (a8), Dave Riddle (a1) and Philipp Teutsch (a1)...

Abstract

Having surveyed ≈ 10% of the sky, we have identified more than 130 PN candidates by surveying multicolour Digitized Sky Survey (DSS), Sloan Digitized Sky Survey (SDSS), and combined [O III], Hα and [S II] images. In a first imaging and spectroscopy campaign, 51 objects were identified as true and probable PNe. This work presents an additional 17 probable or possible PNe identified since that study. The majority of these candidates are situated at Galactic latitudes |b| > 5^, with the exception of seven objects located closer to the Galactic plane. Using the techniques described here that do not require any new survey data, we anticipate that many more PNe are waiting to be found, perhaps as many as 90.

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References

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Douchin, D., Jacoby, G. H., De Marco, O., Howell, S., & Kronberger, M. 2011, these proceedings
Drew, J. E., Greimel, R., Irwin, M. J. et al. 2005, MNRAS, 362, 753
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Kronberger, M., Teutsch, P., Alessi, B., Steine, M. et al. 2006, A&A, 447, 921
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