Recent spectral variation of the peculiar nova-like object PU Vulpeculae

Details Recent spectral variation of the peculiar nova-like object PU Vulpeculae Recent spectral variation of the peculiar nova-like object PU Vulpeculae

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...215...57i&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 215, no. 1, May 1989, p. 57-62.

Astronomy and Astrophysics

Astrophysics

20

H Alpha Line, H Beta Line, H Gamma Line, Novae, Peculiar Stars, Balmer Series, Emission Spectra, Stellar Spectrophotometry, Symbiotic Stars

Scientific paper

The spectroscopic evolution of PU Vul during the period from November 1986 to June 1988 is characterized on the basis of medium-dispersion 380-770-nm spectroscopy, CCD spectrophotometry, and photographic photometry obtained at Asiago Observatory. A spectral-density plot and a table of emission-line identifications are provided, and it is shown that the number of emission lines began to increase in about September 1987, when the light maximum faded (although more slowly than in 1980). Lines identified include those of H I, Fe II, Mg II, Si II, He I, forbidden Fe II and S II, Cr II, Ti II, and forbidden N II (575.5 nm). The Balmer emission lines extended to at least H(15) (371.2 nm), and the strongest lines had faint broad wings of FWZI about 2600 km/sec.

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