Reference : Spectrographic observations of Nova Herculis (1934) and Nova Serpentis (1909), with i...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/72207
Spectrographic observations of Nova Herculis (1934) and Nova Serpentis (1909), with identifications of [Fe v] and [Fe III] in Nova Pictoris (1925).
English
Swings, Polydore [McDonald Observatory > > > > > >]
Struve, Otto [> > > >]
1942
Astrophysical Journal
University of Chicago Press
96
468-474
No
International
0004-637X
Chicago
IL
[en] I. The velocities of expansion of Nova Herculis show a range of from 338 km/sec for [O II] to 256 km/sec for [O III]. This suggests stratification. The lines show curved outer components, with a faint indication of a central line in the case of Hγ. Considerable change has taken place in the relative intensities of the emission lines since 1940. The continuous spectrum of the central star has decreased in brightness.
II. The forbidden spectra of [Fe V] and [Fe VI] are well developed in the present spectrum of Nova Serpentis. Although thirty-three years have elapsed since the outburst, the electron density in the nebulosity is still high, compared with most planetary nebulae.
III. Several unidentified lines measured by H. Spencer Jones in Nova Pictoris (1925) can now be attributed to [Fe V] and [Fe III].
Researchers ; Professionals
http://hdl.handle.net/2268/72207
10.1086/144478
http://adsabs.harvard.edu/abs/1942ApJ....96..468S

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