Query : 1999A&A...349L..65C

1999A&A...349L..65C - Astronomy and Astrophysics, volume 349, L65-68 (1999/9-3)

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


Abstract (from CDS):

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.

Abstract Copyright:

Journal keyword(s): methods: data analysis - techniques: spectroscopic - stars: pre-main sequence - accretion, accretion disks

Simbad objects: 2

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Number of rows : 2
N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
1 V* BP Tau Or* 04 19 15.8339827632 +29 06 26.926959492   13.13 12.12 11.89   K5/7Ve 632 0
2 * 61 Cyg B Er* 21 06 55.2638444466 +38 44 31.358519864 8.63 7.40 6.03 4.86 3.55 K7V 694 1

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