Computer Science
Scientific paper
Mar 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989msngr..55...39b&link_type=abstract
The Messenger, vol. 55, p. 39-41
Computer Science
2
Nova Centauri 1986, Novae: H Alpha, Novae: Spectra
Scientific paper
We present here some preliminary results and considerations regarding high resolution spectroscopy of Nova Centauri 1986. This object was discovered on November 22.7 UT as a 5.6 V magnitude star (1), and observed by us in Ha two months later, when it was of about 10 magnitude. A considerable change in the Ha line profile, basically consisting in the disappearance of the original f1attop profile substituted by a more regular multicomponent profile, is clearly visible in our set of spectra, obtained monitoring the nova for nearly a week. A fitting of the line profile by means of three gaussian components shows a narrowing of the components and a rapid fading of one of them as a function of time. This behaviour can be interpreted in terms of blobs which have been formed in a non-spherical explosion and that were evaporating at the time of the observations.
Bandiera Rino
Focardi Paola
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