A volume-limited survey of High Galactic latitude planetary nebulae with the Extreme Ultraviolet Explorer

Details A volume-limited survey of High Galactic latitude planetary nebulae with the Extreme Ultraviolet Explorer A volume-limited survey of High Galactic latitude planetary nebulae with the Extreme Ultraviolet Explorer

Mar 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995apj...441..726f&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 441, no. 2, p. 726-734

Astronomy and Astrophysics

Astronomy

17

Extreme Ultraviolet Radiation, Planetary Nebulae, Sky Surveys (Astronomy), Ultraviolet Astronomy, Ultraviolet Emission, B Stars, Extreme Ultraviolet Explorer Satellite, Image Analysis, Interstellar Extinction, Ultraviolet Photometry, White Dwarf Stars

Scientific paper

We present the results of a complete survey, at extreme-ultraviolet (EUV) wavelengths (58-234 A), of the high Galactic latitude (absolute value of b greater than or = to 20 deg) planetary nebulae (PNs) with at least one determination of the distance within 1 kpc of the Sun. The sample comprises 27 objects observed during the Extreme Ultraviolet Explorer (EUVE) all-sky survey and represents the majority of PN likely to be accessible at EUV wavelengths. Six PNs (NGC 246, NGC 1360, K1-16, LoTr 5, NGC 4361, and NGC 3587) were detected in the shortest EUV band (58-174 A). A seventh PN (NGC 6853), not included in the sample, was also detected during the survey. The emission is consistent in all cases with that of a point source and therefore most probably originates from the PN central star. Accurate EUV count rates or upper limits in the two shorter EUVE bands (centered at approximately 100 and 200 A) are given for all the sources in the sample. NGC 4361 and NGC 3587 are reported here for the first time as sources of EUV radiation. As might be expected, attenuation by the interstellar medium dominates the PN distribution in the EUV sky.

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