Modeling of C IV pumped fluorescence of Fe II in symbiotic stars

Details Modeling of C IV pumped fluorescence of Fe II in symbiotic stars Modeling of C IV pumped fluorescence of Fe II in symbiotic stars

Jan 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008a%26a...477..255e&link_type=abstract

Astronomy and Astrophysics, Volume 477, Issue 1, January I 2008, pp.255-265

Astronomy and Astrophysics

Astrophysics

1

Binaries: Symbiotic, Radiation Mechanisms: Non-Thermal, Stars: Atmospheres

Scientific paper

Aims:We describe how the C IV λ1548.18 line pumps the 1548.20 and 1548.41 Å channels of Fe II in symbiotic stars through the process known as photo-ionization by accidental resonance (PAR). We describe where and why Fe II fluorescence arises in symbiotic stars and whether the Fe II λ1548.41 channel can only be activated when there is a white-dwarf wind present in the system. Further, we aim to show how an analysis of the PAR-pumped lines helps to understand the phyisical conditions that they manifest. Methods: We calculate intensities of the C IV-pumped Fe

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