Astronomy and Astrophysics – Astronomy
Scientific paper
May 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aas...212.0803d&link_type=abstract
American Astronomical Society, AAS Meeting #212, #8.03; Bulletin of the American Astronomical Society, Vol. 40, p.199
Astronomy and Astrophysics
Astronomy
Scientific paper
We present Brackett-gamma and Balmer Discontinuity observations of a large sample of Herbig Ae/Be candidate stars. Herbig Ae/Be stars are the higher mass analogues of T Tauri stars, and both are young stellar objects accreting material from a circumstellar disk. We will calculate the mass accretion rates of the stars in our sample by measuring the veiling of the Balmer Discontinuity due to accretion. In T Tauri stars, there is a well established correlation between Brackett-gamma luminosity and mass accretion luminosity, and thus mass accretion rate. We seek to determine if this correlation holds true for Herbig Ae/Be stars, and how well it correlates based on spectral type and age. If the correlation is valid for Herbig Ae/Be stars, astronomers will have a relatively simple, straightforward method for measuring the mass accretion rate.
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