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The multiple spirals in the disk of HD100546

Published online by Cambridge University Press:  06 January 2014

A. Boccaletti ,
A.-M. Lagrange ,
E. Pantin ,
J.-C. Augereau ,
S. P. Quanz  and
H. Meheut
A. Boccaletti
Affiliation:
LESIA, Observatoire de Paris, 5 place Jules Janssen, 92195 Meudon, France email: [email protected]
A.-M. Lagrange
Affiliation:
IPAG, Université Joseph Fourier, CNRS, BP 53, 38041 Grenoble, France
E. Pantin
Affiliation:
SAp, CEA, France
J.-C. Augereau
Affiliation:
IPAG, Université Joseph Fourier, CNRS, BP 53, 38041 Grenoble, France
S. P. Quanz
Affiliation:
Institute for Astronomy, ETH Zurich, Wolfgang-Pauli-Strasse 27, 8093 Zurich, Switzerland
H. Meheut
Affiliation:
SAp, CEA, France
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Abstract

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We report the detection of multi-armed spirals in the environment of HD 100546 using NICI at Gemini South in the Ks band. These data feature a better angular resolution and higher contrast than previous HST images, which allows to resolve the former known spiral into a multiple pattern. An analytic model with a gravitational perturber is used to fit the spiral pattern. We derived limit of detections which set constraints on the discovered forming planet.

Keywords

stars: individual (HD 100546) - protoplanetary disks - high angular resolution
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S299: Exploring the Formation and Evolution of Planetary Systems , June 2013 , pp. 208 - 209
Copyright
Copyright © International Astronomical Union 2013 

References

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Boccaletti, A., Lagrange, A. M., Bonnefoy, M., Galicher, R., & Chauvin, G., 2013 A&A, 551, 14Google Scholar
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