Henize 2-442 - A double emission-line object

Details Henize 2-442 - A double emission-line object Henize 2-442 - A double emission-line object

Jun 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983pazh....9..349a&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 9, June 1983, p. 349-352) Soviet Astronomy Letters (ISSN 0360-0327), vol. 9, May-June 1

Astronomy and Astrophysics

Astronomy

3

Astronomical Catalogs, Astronomical Spectroscopy, Emission Spectra, H Alpha Line, Infrared Astronomy, Electrophotometry, Peculiar Stars, Planetary Nebulae

Scientific paper

At the site of the diffuse visual image of the peculiar object Henize 2-442 (Perek-Kohoutek 61 + 2.1 deg) an infrared image tube shows two starlike sources approximately 6 sec apart, oriented NE-SW. For lambda = 4000-6800 A both sources have emission-line spectra outwardly resembling those of planetary nebulae of excitation class 3-4. He 2-442B differs from He 2-442A mainly in showing lambda 4686 He II, whose intensity indicates a hot (approximately 100,000 K) emission source. The continuum level has been reached only in He 2.442A, near the H-alpha line, whose equivalent width is approximately 450-650 A.

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