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Searching for companions down to 2 AU from β Pictoris using the L′-band AGPM coronagraph on VLT/NACO

Absil, O. and Milli, J. and Mawet, D. and Lagrange, A.-M. and Girard, J. and Chauvin, G. and Boccaletti, A. and Delacroix, C. and Surdej, J. (2013) Searching for companions down to 2 AU from β Pictoris using the L′-band AGPM coronagraph on VLT/NACO. Astronomy and Astrophysics, 559 . Art. No. L12 . ISSN 0004-6361. https://resolver.caltech.edu/CaltechAUTHORS:20150521-145139143

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Abstract

Context. The orbit of the giant planet discovered around β Pic is slightly inclined with respect to the outer parts of the debris disc, which creates a warp in the inner debris disc. This inclination might be explained by gravitational interactions with other planets. Aims. We aim to search for additional giant planets located at smaller angular separations from the star. Methods. We used the new L′-band AGPM coronagraph on VLT/NACO, which provides an exquisite inner working angle. A long observing sequence was obtained on β Pic in pupil-tracking mode. To derive sensitivity limits, the collected images were processed using a principal-component analysis technique specifically tailored to angular differential imaging. Results. No additional planet is detected down to an angular separation of 0.''2with a sensitivity better than 5 M_(Jup). Meaningful upper limits (<10 M_(Jup)) are derived down to an angular separation of 0.''1, which corresponds to 2 AU at the distance of β Pic.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1051/0004-6361/201322748DOIArticle
http://www.aanda.org/articles/aa/abs/2013/11/aa22748-13/aa22748-13.htmlPublisherArticle
http://arxiv.org/abs/1311.4298arXivDiscussion Paper
ORCID:
AuthorORCID
Absil, O.0000-0002-4006-6237
Milli, J.0000-0001-9325-2511
Mawet, D.0000-0002-8895-4735
Girard, J.0000-0001-8627-0404
Boccaletti, A.0000-0001-9353-2724
Surdej, J.0000-0002-7005-1976
Additional Information:© 2013 EOS. Received 25 September 2013; Accepted 6 November 2013. The research leading to these results has received funding from the European Research Council under the FP7 through ERC Starting Grant Agreement No. 337569, and from the Communauté française de Belgique – Actions de recherche concertées – Académie universitaire Wallonie-Europe.
Funders:
Funding AgencyGrant Number
European Research Council (ERC)337569
Communauté française de Belgique – Actions de recherche concertées – Académie universitaire Wallonie-EuropeUNSPECIFIED
Subject Keywords:planetary systems; stars: individual: beta Pictoris; techniques: high angular resolution
Record Number:CaltechAUTHORS:20150521-145139143
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20150521-145139143
Official Citation:Absil, O., Milli, J., Mawet, D., Lagrange, A.-M., Girard, J., Chauvin, G., . . . Surdej, J. (2013). Searching for companions down to 2 AU from β Pictoris using the L′-band AGPM coronagraph on VLT/NACO. A&A, 559, L12.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:57749
Collection:CaltechAUTHORS
Deposited By: Joanne McCole
Deposited On:21 May 2015 23:21
Last Modified:09 Mar 2020 13:18

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