IPHAS extinction distances to planetary nebulae

Giammanco, C.; Sale, S. E.; Corradi, R. L. M.; Barlow, M. J.; Viironen, K.; Sabin, L.; Santander-García, M.; Frew, D. J.; Greimel, R.; Miszalski, B.; Phillipps, S.; Zijlstra, A. A.; Mampaso, A.; Drew, J. E.; Parker, Q. A.; Napiwotzki, R.
Bibliographical reference

Astronomy and Astrophysics, Volume 525, id.A58

Advertised on:
1
2011
Number of authors
16
IAC number of authors
5
Citations
51
Refereed citations
47
Description
Aims: The determination of reliable distances to planetary nebulae (PNe) is a major difficulty in the study of this class of objects in the Galaxy. The availability of new photometric surveys such as IPHAS (the INT/WFC photometric Hα survey of the northern Galactic plane) covering large portions of the sky provide an opportunity to apply the so-called extinction method to determine the distances of a large number of objects. Methods: The technique is applied to a sample of 137 PNe located between -5 and 5 degrees in Galactic latitude, and between 29.52 and 215.49 degrees in longitude. The characteristics of the distance-extinction method and the main sources of errors are carefully discussed. Results: The data on the extinction of the PNe available in the literature, complemented by new observations, allow us to determine extinction distances for 70 PNe. A comparison with statistical distance scales from different authors is presented.
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