IUE observations of new A star candidate proto-planetary systems

Details IUE observations of new A star candidate proto-planetary systems IUE observations of new A star candidate proto-planetary systems

Jun 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994arcl.reptr....g&link_type=abstract

Final Report, May 1993 - May 1994 Applied Research Corp., Landover, MD.

Astronomy and Astrophysics

Astronomy

A Stars, Accretion Disks, B Stars, Pre-Main Sequence Stars, Stellar Mass Accretion, Ultraviolet Astronomy, Iue, Nebulae, Protoplanets, Ultraviolet Spectra

Scientific paper

As a result of the detection of accreting gas in the A5e PMS Herbig Ae star, HR 5999, most of the observations for this IUE program were devoted to Herbig Ae stars rather than to main sequence A stars. Mid-UV emission at optical minimum light was detected for UX Ori (A1e), BF Ori (A5e), and CQ Tau (F2e). The presence of accreting gas in HD 45677 and HD 50138 prompted reclassification of these stars as Herbig Be stars rather than as protoplanetary nebulae. Detailed results are discussed.

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