振荡红巨星的探测与表征：TESS卫星的初步结果
太阳与恒星天体物理
2020-02-19 v2 星系天体物理
摘要
自高精度、高节奏测光学的“空间革命”开始以来，星震学已被证明是为银河系考古研究提供信息的有力工具。NASA TESS任务的发射使得基于震波的推断能够覆盖全天空——这为银河系不同组分的大样本整体研究提供了明显优势。在此，我们通过开展由TESS观测的红巨星恒星的首次星震学整体研究，展示其在探究银河系方面的潜力。我们使用一个包含25颗恒星的样本，测量其全局星震学可观测量，并估算其基本恒星属性，如半径、质量和年龄。与单独应用星震学和天体测量学相比，将TESS的震波可观测量与Gaia任务的天体测量相结合时，我们的估算不确定性显著改善。具体而言，结合后我们表明恒星半径可确定到百分之几的精度，质量到5–10%，年龄到20%的水平。这与通常使用Kepler任务末段数据获得的精度相当。
引用
@article{arxiv.1912.07604,
title = {Detection and characterisation of oscillating red giants: first results from the TESS satellite},
author = {Víctor Silva Aguirre and Dennis Stello and Amalie Stokholm and Jakob R. Mosumgaard and Warrick Ball and Sarbani Basu and Diego Bossini and Lisa Bugnet and Derek Buzasi and Tiago L. Campante and Lindsey Carboneau and William J. Chaplin and Enrico Corsaro and Guy R. Davies and Yvonne Elsworth and Rafael A. García and Patrick Gaulme and Oliver J. Hall and Rasmus Handberg and Marc Hon and Thomas Kallinger and Liu Kang and Mikkel N. Lund and Savita Mathur and Alexey Mints and Benoit Mosser and Zeynep Çelik Orhan and Thaíse S. Rodrigues and Mathieu Vrard and Mutlu Yıldız and Joel C. Zinn and Sibel Örtel and Paul G. Beck and Keaton J. Bell and Zhao Guo and Chen Jiang and James S. Kuszlewicz and Charles A. Kuehn and Tanda Li and Mia S. Lundkvist and Marc Pinsonneault and Jamie Tayar and Margarida S. Cunha and Saskia Hekker and Daniel Huber and Andrea Miglio and Mario J. P. F. G. Monteiro and Ditte Slumstrup and Mark L. Winther and George Angelou and Othman Benomar and Attila Bódi and Bruno L. De Moura and Sébastien Deheuvels and Aliz Derekas and Maria Pia Di Mauro and Marc-Antoine Dupret and Antonio Jiménez and Yveline Lebreton and Jaymie Matthews and Nicolas Nardetto and Jose D. do Nascimento, and Filipe Pereira and Luisa F. Rodríguez Díaz and Aldo M. Serenelli and Emanuele Spitoni and Edita Stonkutė and Juan Carlos Suárez and Robert Szabó and Vincent Van Eylen and Rita Ventura and Kuldeep Verma and Achim Weiss and Tao Wu and Thomas Barclay and Jørgen Christensen-Dalsgaard and Jon M. Jenkins and Hans Kjeldsen and George R. Ricker and Sara Seager and Roland Vanderspek},
journal= {arXiv preprint arXiv:1912.07604},
year = {2020}
}
备注
Accepted for publication in ApJ Letters