The ODYSSEUS Survey. Motivation and First Results: Accretion, Ejection, and Disk Irradiation of CVSO 109
The ODYSSEUS Survey. Motivation and First Results: Accretion, Ejection, and Disk Irradiation of CVSO 109
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DOI：
10.3847/1538-3881/ac479d
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发表时间：
2022-01
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C. Espaillat;G. Herczeg;T. Thanathibodee;C. Pittman;N. Calvet;N. Arulanantham;K. France;J. Serna;J. Hernández;Á. Kóspál;F. Walter;A. Frasca;W. Fischer;C. Johns–Krull;P. Schneider;C. Robinson;S. Edwards;P. Ábrahám;M. Fang;J. Erkal;C. Manara;J. Alcalá;E. Alecian;R. Alexander;J. Alonso-Santiago;S. Antoniucci;D. Ardila;A. Banzatti;M. Benisty;E. Bergin;K. Biazzo;C. Briceño;J. Campbell-White;L. Cleeves;D. Coffey;J. Eislöffel;S. Facchini;D. Fedele;E. Fiorellino;D. Froebrich;M. Gangi;T. Giannini;K. Grankin;H. M. Günther;Zhen Guo;L. Hartmann;L. Hillenbrand;P. Hinton;J. Kastner;C. Koen;K. Maucó;I. Mendigutía;B. Nisini;N. Panwar;D. Principe;M. Robberto;A. Sicilia-Aguilar;J. Valenti;J. Wendeborn;Jonathan P. Williams;Ziyan Xu;R. Yadav
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作者：
C. Espaillat;G. Herczeg;T. Thanathibodee;C. Pittman;N. Calvet;N. Arulanantham;K. France;J. Serna;J. Hernández;Á. Kóspál;F. Walter;A. Frasca;W. Fischer;C. Johns–Krull;P. Schneider;C. Robinson;S. Edwards;P. Ábrahám;M. Fang;J. Erkal;C. Manara;J. Alcalá;E. Alecian;R. Alexander;J. Alonso-Santiago;S. Antoniucci;D. Ardila;A. Banzatti;M. Benisty;E. Bergin;K. Biazzo;C. Briceño;J. Campbell-White;L. Cleeves;D. Coffey;J. Eislöffel;S. Facchini;D. Fedele;E. Fiorellino;D. Froebrich;M. Gangi;T. Giannini;K. Grankin;H. M. Günther;Zhen Guo;L. Hartmann;L. Hillenbrand;P. Hinton;J. Kastner;C. Koen;K. Maucó;I. Mendigutía;B. Nisini;N. Panwar;D. Principe;M. Robberto;A. Sicilia-Aguilar;J. Valenti;J. Wendeborn;Jonathan P. Williams;Ziyan Xu;R. Yadav
哈勃紫外线遗产图书馆的年轻恒星作为基本标准（ULLYSES）主任的自由裁量计划的低质量前主序星，加上即将从阿塔卡马大毫米/亚毫米阵列和詹姆斯韦伯太空望远镜的数据，将提供基础，以彻底改变我们的年轻恒星和他们的原行星盘之间的关系的理解。对盘演化和行星形成的物理学的全面评估需要理解质量吸积、质量流出和盘结构之间的复杂关系。在这里，我们描述了年轻恒星周围的外流和对流：ULLYSES光谱探索的协同作用（ODYSSEUS）调查，并提出了猎户座OB 1b中经典金牛座T星星CVSO 109的初步结果，作为调查结果的科学演示。ODYSSEUS将分析ULLYSES光谱数据库，确保采用统一和系统的方法，以便（1）测量吸积流如何取决于吸积率和磁结构，（2）确定风和喷流的发射位置以及质量损失率与吸积的比较，以及（3）确定FUV辐射对行星形成盘温暖内部区域化学的影响。ODYSSEUS还将获取并提供X射线、光学、近红外和毫米波长的同期观测，以增强ULLYSES数据的影响。我们的目标是提供一个一致的框架，以准确地测量原行星盘质量吸积的水平和演变，内部磁盘质量损失的属性和幅度，以及确定电离水平和驱动盘化学的紫外辐射场的影响。
The Hubble UV Legacy Library of Young Stars as Essential Standards (ULLYSES) Director’s Discretionary Program of low-mass pre-main-sequence stars, coupled with forthcoming data from Atacama Large Millimeter/submillimeter Array and James Webb Space Telescope, will provide the foundation to revolutionize our understanding of the relationship between young stars and their protoplanetary disks. A comprehensive evaluation of the physics of disk evolution and planet formation requires understanding the intricate relationships between mass accretion, mass outflow, and disk structure. Here we describe the Outflows and Disks around Young Stars: Synergies for the Exploration of ULLYSES Spectra (ODYSSEUS) Survey and present initial results of the classical T Tauri Star CVSO 109 in Orion OB1b as a demonstration of the science that will result from the survey. ODYSSEUS will analyze the ULLYSES spectral database, ensuring a uniform and systematic approach in order to (1) measure how the accretion flow depends on the accretion rate and magnetic structures, (2) determine where winds and jets are launched and how mass-loss rates compare with accretion, and (3) establish the influence of FUV radiation on the chemistry of the warm inner regions of planet-forming disks. ODYSSEUS will also acquire and provide contemporaneous observations at X-ray, optical, near-IR, and millimeter wavelengths to enhance the impact of the ULLYSES data. Our goal is to provide a consistent framework to accurately measure the level and evolution of mass accretion in protoplanetary disks, the properties and magnitudes of inner-disk mass loss, and the influence of UV radiation fields that determine ionization levels and drive disk chemistry.