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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents

ID: 693864.0, MPI für Astronomie / Publikationen_mpia
Characterization of the Super-Jupiter Kappa Andromedae b
Authors:Bonnefoy, M.; Carson, J. C.; Currie, T.; Thalmann, C.; Hinz, P.; Marleau, G. -. D.; Biller, B.; Klahr, H.; Allard, F.; Wisniewski, J. P.; Skemer, A.; Zimmerman, N.; Schlieder, J.; Tamura, M.; Covey, K. R.; Janson, M.; McElwain, M.
Date of Publication (YYYY-MM-DD):2013
Title of Journal:European Planetary Science Congress 2013, Held 8-13 September in London, UK. Online at: <A Href="Http://Meetings.Copernicus.Org/Epsc2013"> Http://Meetings.Copernicus.Org/Epsc2013</A>, ID.Epsc2013-782
Start Page:782
Audience:Not Specified
Abstract / Description:We present the results of an in-depth photometric analysis of the substellar companion Andromedae b. Expanding on the JHKL0 photometry presented in our discovery paper [1], we obtained high-contrast images of the companion at 2.146, 3.776, 4.052, and 4.78 μm using the Keck NIRC2 and LBTI LMIRCam facilities. Furthermore, we gathered accurate near-infrared photometry of the host star in order to recalibrate the previously taken high-contrast images. This allowed us to compile a comprehensive set of constraints on the companion's spectral energy distribution (SED), and to compare these data to the spectra of both real benchmark objects as well as PHOENIX-based atmospherical model calculations. Finally, we used a wide range of formation models and initial conditions to constrain the companion mass. We find that the new results fit well with the predictions from the discovery paper, though the comprehensive formation analysis extends the range of possible companion masses deeper into the brown dwarf territory.
External Publication Status:published
Document Type:Article
Version Comment:Automatic journal name synchronization
Communicated by:N. N.
Affiliations:MPI für Astronomie
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