IUE observations of the eruptive pre-main sequence object FU Orionis

Details IUE observations of the eruptive pre-main sequence object FU Orionis IUE observations of the eruptive pre-main sequence object FU Orionis

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.263..205e&link_type=abstract

In ESA Proceedings of an International Symposium on New Insights in Astrophysics. Eight Years of UV Astronomy with IUE p 205-20

Astronomy and Astrophysics

Astrophysics

5

Iue, Pre-Main Sequence Stars, Stellar Activity, Stellar Spectra, Radio Bursts, Stellar Envelopes, Stellar Winds

Scientific paper

IUE observations have been used to examine the nature of the eruptive pre-main sequence object FU Orionis. The Mg II emission line is quite strong, with a surface flux of about 1.8×108erg/cm2sec, and probably arises in a wind and extended envelope. The Mg II h and k line profiles appear to be P Cygni, indicating that a substantial wind persists 50 years after the original outburst in the star. The ultraviolet spectrum, aside from the Mg II emission, resembles F2 Ia standard star spectra.

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