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Colloquium のバックアップ(No.55)

DTA Colloquium 2018 †

DTA Colloquium(理論コロキウム)は原則として毎週火曜日の午後13:30から開催しています。
原則として英語で講演していただきますが、 講師・参加者が日本人だけの場合は日本語に切り替えてくださっても（英語のままでも）結構です。
台内・台外また分野を問わず広く発表者（台外の方には旅費・謝金あり）を募集しています。
お問い合わせは以下のコロキウム係までお願いします（_AT_を@に変更してください）。

  • 滝脇知也 takiwaki.tomoya_AT_nao.ac.jp
  • 片岡 章雅 akimasa.kataoka_AT_nao.ac.jp
  • Kenneth Wong ken.wong ATM nao.ac.jp
  • 高橋 博之 takahashi ATM cfca.jp
  • 平居 悠 yutaka.hirai ATM nao.ac.jp
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Schedule & History †

FY2010 FY2011 FY2012 FY2013 FY2014 FY2015 FY2016 FY2017

DateSpeakerTitlePlace/Timeremarks
4/4all internal membersself-introductionRinko room, Main Building (East) / 13:30
4/10Adriana Pohl (Max-Planck Institute of Astronomy, Heidelberg Germany)Revealing the evolution of planet-forming disks with polarization observationsLecture room / 13:30Tuesday
04/17TBALecture room / 13:30Tuesday
04/24TBARinko room, Main Building (East) / 13:30Tuesday
05/01TBALecture room / 13:30Tuesday
05/08TBARinko room, Main Building (East) / 13:30Tuesday
05/15TBALecture room / 13:30Tuesday
05/22TBARinko room, Main Building (East) / 13:30Tuesday
05/29TBALecture room / 13:30Tuesday
06/05TBALecture room / 13:30Tuesday
06/12TBALecture room / 13:30Tuesday
06/19TBALecture room / 13:30Tuesday
06/26TBALecture room / 13:30Tuesday
07/03TBALecture room / 13:30Tuesday
07/10TBALecture room / 13:30Tuesday
07/17TBALecture room / 13:30Tuesday
07/24TBARinko room, Main Building (East) / 13:30Tuesday
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Confirmed speakers †

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Abstract †

4/10 Adriana Pohl (Max-Planck Institute of Astronomy, Heidelberg Germany) Revealing the evolution of planet-forming disks with polarization observations
Recent observational instruments like VLT/SPHERE and ALMA have reached an unprecedented level of resolution and sensitivity. Meanwhile, even the direct observation of substructures in planet-forming disks is within reach, by which the disk evolution can be traced. Features such as gaps, rings, spiral arms and clumps can be either associated with embedded, but yet unseen forming planets, or be related to other internal, physical disk processes. In this talk, I will compare theoretical predictions of dust evolution models and planet-disk interaction processes with current multi-wavelength observations of planet-forming disks. To this end, detailed radiative transfer calculations are presented, which are employed to model observational signatures in disks. An emphasis is placed on polarization diagnostics, which facilitates the detection of light scattered by dust grains in the disk. The latter is a crucial ingredient to constraining the size and composition of dust grains, which is necessary to understand the earliest stages of planet formation.