The Fe II excitation mechanism in KQ Puppis
2000 (English)In: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 364, no 2, 646-654 p.Article in journal (Refereed) Published
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 pa pers 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.
Place, publisher, year, edition, pages
2000. Vol. 364, no 2, 646-654 p.
atomic data, atomic processes, stars, binaries, spectroscopic, KQ Puppis
Astronomy, Astrophysics and Cosmology
IdentifiersURN: urn:nbn:se:hkr:diva-10608ISI: 000166998400037OAI: oai:DiVA.org:hkr-10608DiVA: diva2:628069