Abstract
We report the observation of T Tau by visible speckle interferometry at the CFHT. The observations were carried out at two wavelengths simultaneously. Each image was split into two, allowing improved data processing. The 4-channel photon-counting detector CP40 was used. We have discovered that 30% of the total energy at Ha is emitted by an extended elliptical component, with a FWHM of 70 maresec. In the neighbouring continuum, T Tau is not resolved by the 3.60 m CFHT. We briefly discuss the astrophysical consequences of this new result.
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Based on observations collected at the CFHT.
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© 1994 Springer Science+Business Media Dordrecht
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Thiébaut, E. et al. (1994). The Extended Hα Component of T Tau. In: Robertson, J.G., Tango, W.J. (eds) Very High Angular Resolution Imaging. International Astronomical Union / Union Astronomique Internationale, vol 158. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-0880-5_76
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DOI: https://doi.org/10.1007/978-94-011-0880-5_76
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