The Fe II excitation mechanism in KQ Puppis

Details The Fe II excitation mechanism in KQ Puppis The Fe II excitation mechanism in KQ Puppis

Dec 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26a...364..646r&link_type=abstract

Astronomy and Astrophysics, v.364, p.646-654 (2000)

Astronomy and Astrophysics

Astrophysics

5

Atomic Data, Atomic Processes, Stars: Binaries: Spectroscopic, Stars: Individual: Kq Puppis

Scientific paper

We discuss different excitation processes behind the Fe II emission lines in the IUE spectrum of KQ Puppis (Boss 1985), a VV Cephei type of spectroscopic binary. Several papers have been published on the subject suggesting a number of processes behind the strong Fe II emission lines. We propose that there are two processes operating: selective photoexcitation by continuum radiation (PCR) from the B-star companion, and photoexcitation by accidental resonance (PAR) by the H Ly alpha radiation field. We suggest excitation channels for each of the Fe II emission lines identified in the spectrum.

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