The Accretion Footprint on a Herbig Ae Star: MWC 480

Details The Accretion Footprint on a Herbig Ae Star: MWC 480 The Accretion Footprint on a Herbig Ae Star: MWC 480

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21542902w&link_type=abstract

American Astronomical Society, AAS Meeting #215, #429.02; Bulletin of the American Astronomical Society, Vol. 42, p.349

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Scientific paper

Studies of classical T Tauri stars have indicated that the accretion footprint lies in middle to polar latitudes on the star, consistent with theoretical expectations of the funnelled-accretion model. Herbig Ae stars are higher mass analogs of classical T Tauri stars. Their circumstellar disks, disk lifetimes and presence of accretion-related phenomena have roughly scalable similarities for both stellar types. Extending such studies to Herbig Ae stars requires a sample with known inclinations, measured accretion rates, and FUV data constraining N(H2) and N(H I). The majority of these stars have the low photoelectric absorption expected for stars successfully observed with FUSE, but FUV excess light and broad O VI and C III emission characteristic of accreting systems. These emission line profile shapes are uncorrelated with system inclinations over 18

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