Statistical study of extrasolar Kuiper belts with Herschel/DUNES

用 Herschel/DUNES 进行太阳系外柯伊伯带的统计研究

• 批准号: 178123971
• 负责人: Dr. Torsten Löhne
• 金额: --
• 依托单位: Astrophysikalisches Institut und Universitätssternwarte
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2010
• 资助国家: 德国
• 起止时间: 2009-12-31 至 2013-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/178123971?language=en
• 关键词: Statistical; study; extrasolar; Kuiper; belts

Accretion of planetesimals to planets is known to be more efficient in inner parts of protoplanetary discs. In their outer parts, where the disc surface density is too low or gravity of planets formed closer-in dynamically heat the disc, accretion ceases at sub-planetary sizes and only yields ensembles of planetesimals and dwarf planets. These populations of small bodies on the periphery of the planetary systems are called “extrasolar Kuiper belts” or debris discs. While the planetesimals themselves cannot be directly detected around other stars, the dust that they produce in a continuous collisional cascade can be observed through its thermal emission. Valuable information about the formation and evolution of invisible planets and planetesimals is imprinted into the observational statistics of such dusty debris discs – and can be retrieved from it. These statistics reflect phases of unperturbed, collisional evolution of debris discs combined with perturbing events such as the outward migration of planets. Based on substantial preliminary work, we propose to quantify these links by means of specific models of debris disc evolution and the population synthesis method, making use of the new data coming from the Herschel Space Observatory. In this way, we aim at setting new constraints on formation and evolution scenarios of planetary systems.

众所周知，小行星对行星的吸积在原行星盘的内部更有效。在它们的外层，盘表面密度太低，或者行星的重力形成得更近，在动态加热盘的时候，吸积在亚行星大小时停止，只产生小行星和矮行星的集合。这些位于行星系统外围的小天体群被称为“太阳系外柯伊伯带”或碎片盘。虽然行星体本身不能在其他恒星周围直接探测到，但它们在连续的碰撞级联中产生的尘埃可以通过它的热发射被观察到。关于看不见的行星和行星体的形成和演化的有价值的信息被印在这种尘埃碎片盘的观测统计数据中--并可以从其中恢复。这些统计数据反映了碎片盘不受干扰的碰撞演化阶段，以及行星向外迁移等扰动事件。在大量前期工作的基础上，我们建议利用赫歇尔空间天文台提供的新数据，通过碎片盘演化的具体模型和人口合成法来量化这些联系。通过这种方式，我们的目标是对行星系统的形成和演化情景设定新的约束。

项目成果

Collisional modelling of the debris disc around HIP 17439

HIP 17439 周围碎片盘的碰撞建模

• DOI: 10.1051/0004-6361/201423523
• 发表时间: 2014
• 期刊: Astronomy and Astrophysics
• 影响因子: 6.5
• 作者: Ch. Schüppler;T. Löhne;A. V. Krivov;S. Ertel;J. P. Marshall;C. Eiroa
• 通讯作者: C. Eiroa

Debris disc formation induced by planetary growth

行星生长引起的碎片盘形成

• DOI: 10.1093/mnras/stu1073
• 发表时间: 2014
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: H. Kobayashi;T. Löhne
• 通讯作者: T. Löhne

Potential multi-component structure of the debris disk around HIP 17439 revealed by Herschel/DUNES ⋆

Herschel/DUNES 揭示了 HIP 17439 周围碎片盘的潜在多组分结构 â

• DOI: 10.1051/0004-6361/201219945
• 发表时间: 2014
• 期刊: Astronomy and Astrophysics
• 影响因子: 6.5
• 作者: S. Ertel;J. P. Marshall;J.-C. Augereau;A. V. Krivov;T. Löhne;C. Eiroa;A. Mora;C. Del Burgo;B. Montesinos;G. Bryden;W. Danchi;F. Kirchschlager;R. Liseau;J. Maldonado;G. L. Pilbratt;Ch. Schüppler;Ph. Thébault;G. J. White;S. Wolf
• 通讯作者: S. Wolf

DUst around NEarby Stars. The survey observational results

• DOI: 10.1051/0004-6361/201321050
• 发表时间: 2013-05
• 期刊: Astronomy and Astrophysics
• 影响因子: 6.5
• 作者: C. Eiroa;J. Marshall;A. Mora;B. Montesinos;O. Absil;J. Augereau;A. Bayo;G. Bryden;W. Danchi;C. D. Burgo;S. Ertel;M. Fridlund;A. Heras;A. Krivov;R. Launhardt;R. Liseau;T. Löhne;J. Maldonado;G. Pilbratt;A. Roberge;J. Rodmann;J. Sanz-Forcada;E. Solano;K. Stapelfeldt;P. Thebault;S. Wolf;D. Ardila;M. Arévalo;C. Beichmann;V. Faramaz;B. González-García;R. Gutierrez;Jean-Pierre Lebreton;R. Martínez-Arnáiz;G. Meeus;D. Montes;G. Olofsson;Kate Y. L. Su;G. J. White;G. J. White;D. Barrado;M. Fukagawa;Eberhard Grün;I. Kamp;R. Lorente;A. Morbidelli;S. Müller;H. Mutschke;Takao Nakagawa;I. Ribas;H. Walker

HERSCHEL's “COLD DEBRIS DISKS”: BACKGROUND GALAXIES OR QUIESCENT RIMS OF PLANETARY SYSTEMS?

• DOI: 10.1088/0004-637x/772/1/32
• 发表时间: 2013-06
• 期刊: The Astrophysical Journal
• 作者: A. Krivov;C. Eiroa;T. Löhne;J. Marshall;B. Montesinos;C. D. Burgo;O. Absil;D. Ardila;J. Augereau;A. Bayo;A. Bayo;G. Bryden;W. Danchi;S. Ertel;J. Lebreton;R. Liseau;A. Mora;A. Mustill;H. Mutschke;R. Neuhäuser;G. Pilbratt;A. Roberge;T. Schmidt;K. Stapelfeldt;P. Th'ebault;Christian Vitense;G. J. White;G. J. White;S. Wolf