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Deep imaging of β Pictoris at L’: asymmetries in the disc and constraints on planets

Milli, Julien and Mawet, Dimitri and Mouillet, David and Absil, Olivier and Lagrange, Anne Marie and Girard, Julien and Augereau, Jean-Charles and Boccaletti, Anthony and Lannier, Justine and Keppler, Miriam (2014) Deep imaging of β Pictoris at L’: asymmetries in the disc and constraints on planets. In: Thirty years of beta Pic and debris disks studies, 8-12 September 2014, Paris, France.

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We demonstrate here the potential of VLT/NaCo at L’ (3.8μm) in Angular Differential Imaging (ADI). We detect the β Pictoris disc above 5σ between 0.4’’ and 3.8’’, after combining data from 7 epochs or 3.1 years. To avoid the smearing of the planet due to its orbital motion within this time span (green arrow), we subtracted the planet from the 7 datasets. We used a star subtraction technique based on PCA (Soummer et al. 2012) and corrected for ADI biases by iterating. We implemented a forward modeling approach to constrain the dust distribution.

Item Type:Conference or Workshop Item (Poster)
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URLURL TypeDescription Website
Milli, Julien0000-0001-9325-2511
Mawet, Dimitri0000-0002-8895-4735
Absil, Olivier0000-0002-4006-6237
Girard, Julien0000-0001-8627-0404
Boccaletti, Anthony0000-0001-9353-2724
Additional Information:© 2014 ESO.
Record Number:CaltechAUTHORS:20150527-112409906
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:57857
Deposited By: Ruth Sustaita
Deposited On:27 May 2015 18:52
Last Modified:09 Mar 2020 13:18

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