exoALMA III：从类星体盘中提取线强度与系统属性的数值建模
地球与行星天体物理
2025-04-29 v1 太阳与恒星天体物理
摘要
ALMA 大规模计划 exoALMA 为我们提供了独特的窗口，探索 15 个可能存在活动行星形成的环星盘的三维物理与动力学属性。本文present一种分析方法，用于描绘来自目标物体中 12CO、13CO 和 CS 线发射所编码的气体盘结构与亚结构。为建模由面向无优势（optically thin）物种（如 CS 和在某些情况下为 13CO）探测的盘结构，我们引入一种复合线轮廓核，考虑盘前后侧发射的投影重叠导致的强度增加。我们的工作流程基于 Discminer 建模框架，包含针对倾斜源（）的改进迭代双分量拟合方法，以减轻盘背面对速度图提取的影响。我们还报告了该样本中盘的星体质量、倾角、位置角、系统速度、旋转方向以及发射面的最佳拟合参数。
引用
@article{arxiv.2504.19986,
title = {exoALMA III: Line-intensity Modeling and System Property Extraction from Protoplanetary Disks},
author = {Andrés F. Izquierdo and Jochen Stadler and Maria Galloway-Sprietsma and Myriam Benisty and Christophe Pinte and Jaehan Bae and Richard Teague and Stefano Facchini and Lisa Wölfer and Cristiano Longarini and Pietro Curone and Sean M. Andrews and Marcelo Barraza-Alfaro and Gianni Cataldi and Nicolás Cuello and Ian Czekala and Daniele Fasano and Mario Flock and Misato Fukagawa and Himanshi Garg and Cassandra Hall and Iain Hammond and Thomas Hilder and Jane Huang and John D. Ilee and Andrea Isella and Kazuhiro Kanagawa and Geoffroy Lesur and Giuseppe Lodato and Ryan A. Loomis and Ryuta Orihara and Daniel J. Price and Giovanni Rosotti and Leonardo Testi and Hsi-Wei Yen and Gaylor Wafflard-Fernandez and David J. Wilner and Andrew J. Winter and Tomohiro C. Yoshida and Brianna Zawadzki},
journal= {arXiv preprint arXiv:2504.19986},
year = {2025}
}
备注
This paper is part of the exoALMA Focus Issue of The Astrophysical Journal Letters