Abstract
NEW STARS AND NEBULÆ.—The first number of the Astrophysical Joumal has come to hand. It is practically a continuation ot Astronomy and Astro Physics in a slightly different form, and is now published by the Chicago University Press. Among the contributions to the journal is a paper, by Prof. W. W. Campbell, on some interesting and significant changes which have occurred recently in the spectrum of Nova Aurigæ. The intensities of the two lines at λ 4360 and λ 5750 appear to have decreased very materially. When Prof. Campbell observed the Nova spectrum in 1892, these two lines were stronger in the Nova than in the nebulæ in the spectra of which they were seen and photographed. Observing last November, however, he found that this condition of things was reversed, the lines appearing relatively fainter in the Nova than in the nebulæ. As is now very well known, the spectra of nebulæ differ both as regards the number and intensity of the lines. The recent observations of the Nova seem to show that the spectrum is not only nebular, but it is approaching the average type of nebular spectrum. Prof. Campbell thus sums up the bearing of spectroscopic observations upon theories proposed to account for the genesis of new stars:—
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Our Astronomical Column. Nature 51, 347 (1895). https://doi.org/10.1038/051347a0
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DOI: https://doi.org/10.1038/051347a0