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Interferometric Observations of η Carinae - the VLTI Takes Its First Glimpse at the Central Source

  • P. Kervella (a1), M. Schöller (a1), R. van Boekel (a2), E. di Folco (a2), S. Correia (a2), A. Glindemann (a2), F. Paresce (a2), A. Richichi (a2), M. Tarenghi (a2) and M. Wittkowski (a1)...

Abstract

We describe the first long-baseline interferometric measurement ever made of the luminous blue variable η Carinae. η Car was observed with the Very Large Telescope Interferometer (VLTI) with the 8.2 m Unit Telescopes as well as with the 40 cm test siderostats on three different baselines. We will detail the measurements and data analysis and discuss briefly the implications of the derived visibility on the morphology of the central source. Furthermore we will discuss the future possibilities of interferometric observations and will show that η Car is one of the prime candidates for imaging with the VLTI.

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References

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