The multiple spirals in the disk of HD100546. Issue Volume 8:Issue S299(2013) (6th January 2014)

• Record Type: Journal Article
• Authors: Boccaletti, A.; Lagrange, A.-M.; Pantin, E.; Augereau, J.-C.; Quanz, S. P.; Meheut, H.
• Is Part Of: Proceedings of the International Astronomical Union. Volume 8:Issue S299(2013)
• Page Start: 208
• Page End: 209
• Publication Date: 2014-01-06
• Subjects: stars: individual (HD 100546) - protoplanetary disks - high angular resolution; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S174392131300834X
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: 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.