B[e] stars at the highest angular resolution: the case of HD87643

Details B[e] stars at the highest angular resolution: the case of HD87643 B[e] stars at the highest angular resolution: the case of HD87643

2009-10-12

arxiv.org/abs/0910.2155v1

Semaine de l'astrophysique fran\c{c}aise, Besancon : France (2009)

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

To be published in the proceedings of the 2009 SF2A conference

Scientific paper

New results on the B[e] star HD87643 are presented here. They were obtained with a wide range of di?erent instruments, from wide-?eld imaging with the WFI camera, high resolution spectroscopy with the FEROS instrument, high angular resolution imaging with the adaptive optics camera NACO, to the highest angular resolution available with AMBER on the VLTI. We report the detection of a companion to HD87643 with AMBER, subsequently con?rmed in the NACO data. Implications of that discovery to some of the previously di?cult-to-understand data-sets are then presented.

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