Institute of Astronomy

HD 95086 -- A Young Analog of HR 8799?

SpeakerTalk DateTalk Series
Kate Su28 July 2014Across HR 2014 Posters

Abstract

HD 95086 is a young A8 star that possesses a large infrared excess, indicative of a massive debris disk, and a 5 Jupiter mass planet at the projected distance of 56 AU, revealed by direct imaging. Its disk was marginally resolved by Herschel and found to be inclined at 25 degree from face-on. Here we present detailed analysis of the disk SED and re-analysis of the resolved images. Our results suggest that the debris structure around HD 95086 is very similar to that of HR 8799: a warm (~170 K) belt, a cold (~60 K) disk, and an extended disk halo (up to ~400 AU). Using dynamical simulations with the disk parameters extracted from SED and imaging, we obtain further constraints on thepossible orbital configurations of other unseen planets in the system.

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