Veiling derivation from high to low resolution spectra of T Tauri stars

Details Veiling derivation from high to low resolution spectra of T Tauri stars Veiling derivation from high to low resolution spectra of T Tauri stars

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26a...349l..65c&link_type=abstract

Astronomy and Astrophysics, v.349, p.L65-L68 (1999)

Astronomy and Astrophysics

Astrophysics

2

Methods: Data Analysis, Techniques: Spectroscopic, Stars: Pre-Main Sequence, Accretion, Accretion Disks

Scientific paper

We propose a simple and efficient approach to extract the veiling from low resolution spectra (few hundreds) of T Tauri stars. The method is based on a point to point energy balance, over large scale and deep spectral structures, between the T Tauri spectrum and a template spectrum. We validate the new algorithm, with derivations of the veiling in quasi-simultaneous high resolution (~10000) and low resolution spectra (~300) of the Classical T Tauri star BP Tau. For this half veiled object the results coincides within 10%. The low resolution approach is a powerful tool which makes it possible to study variability problems in T Tauri stars, related to e.g. flare or accretion activity, in timescales as short as minutes.

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