A 5 μm image of β Pictoris b at A sub-Jupiter projected separation: Evidence for a misalignment between the planet and the inner, warped disk

Thayne Currie, Christian Thalmann, Soko Matsumura, Nikku Madhusudhan, Adam Burrows, Marc Kuchner

    Research output: Contribution to journalArticle

    38 Citations (Scopus)

    Abstract

    We present and analyze a new M' detection of the young exoplanet ß Pictoris b from 2008 VLT/NaCo data at a separation of ˜4 AU and a high signal-to-noise rereduction of L' data taken in 2009 December. Based on our orbital analysis, the planet's orbit is viewed almost perfectly edge-on (i ~ 89deg) and has a Saturn-like semimajor axis of 9.50AU . Intriguingly, the planet's orbit is aligned with the major axis of the outer disk (O ~ 31deg) but is probably misaligned with the warp/inclined disk at 80 AU, often cited as a signpost for the planet's existence. Our results motivate new studies to clarify how ß Pic b sculpts debris disk structures and whether a second planet is required to explain the warp/inclined disk.
    Original languageEnglish
    Article numberL33
    JournalAstrophysical Journal Letters
    Volume736
    Issue number2
    DOIs
    Publication statusPublished - 1 Aug 2011

    Keywords

    • planetary systems
    • stars: early-type
    • stars: individual β Pictoris

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