The Macquarie/AAO/Strasbourg Hα Planetary Nebula Catalogue: MASH

Details The Macquarie/AAO/Strasbourg Hα Planetary Nebula Catalogue: MASH The Macquarie/AAO/Strasbourg Hα Planetary Nebula Catalogue: MASH

Nov 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006mnras.373...79p&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 373, Issue 1, pp. 79-94.

Astronomy and Astrophysics

Astronomy

96

Astronomical Data Bases: Miscellaneous, Catalogues, Surveys, Planetary Nebulae: General

Scientific paper

We present the Macquarie/AAO/Strasbourg Hα Planetary Nebula Catalogue (MASH) of over 900 true, likely and possible new Galactic planetary nebulae (PNe) discovered from the AAO/UKST Hα survey of the southern Galactic plane. The combination of depth, resolution, uniformity and areal coverage of the Hα survey has opened up a hitherto unexplored region of parameter space permitting the detection of this significant new PN sample. Away from the Galactic bulge the new PNe are typically more evolved, of larger angular extent, of lower surface brightness and more obscured (i.e. extinguished) than those in most previous surveys. We have also doubled the number of PNe in the Galactic bulge itself and although most are compact, we have also found more evolved examples. The MASH catalogue represents the culmination of a seven-year programme of identification and confirmatory spectroscopy. A key strength is that the entire sample has been derived from the same, uniform observational data. The 60 per cent increase in known Galactic PNe represents the largest ever incremental sample of such discoveries and will have a significant impact on many aspects of PN research. This is especially important for studies at the faint end of the PN luminosity function which was previously poorly represented.

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