Detection of an Extended Optical Halo around IC 418

Detection of an Extended Optical Halo around IC 418

Two-dimensional long slit AAT IPCS spectra of IC 418 (in the 3400–4400 A wavelength region) show faint extensions in the [O II] 3726, 3729 A and Hγ emission lines out to at least 60 arcsec south and 50 arcsec north of the central star, compared to the angular radius of only 6 arcsec for the bright n...

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Veröffentlicht in:Symposium - International Astronomical Union 1989, Vol.131, p.197-197
Hauptverfasser: Monk, D. J., Barlow, M. J., Clegg, R.E.S.
Format: Artikel
Sprache:eng
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Zusammenfassung:Two-dimensional long slit AAT IPCS spectra of IC 418 (in the 3400–4400 A wavelength region) show faint extensions in the [O II] 3726, 3729 A and Hγ emission lines out to at least 60 arcsec south and 50 arcsec north of the central star, compared to the angular radius of only 6 arcsec for the bright nebula.
ISSN:0074-1809
DOI:10.1017/S0074180900138070