Benchmarking the spectroscopic masses of 249 evolved stars using asteroseismology with TESS

Sai Prathyusha Malla, Dennis Stello, Benjamin T. Monet, Daniel Huber, Marc Hon, Timothy R. Bedding, Claudia Reyes, Daniel R. Hey
{"title":"Benchmarking the spectroscopic masses of 249 evolved stars using asteroseismology with TESS","authors":"Sai Prathyusha Malla, Dennis Stello, Benjamin T. Monet, Daniel Huber, Marc Hon, Timothy R. Bedding, Claudia Reyes, Daniel R. Hey","doi":"arxiv-2409.11736","DOIUrl":null,"url":null,"abstract":"One way to understand planet formation is through studying the correlations\nbetween planet occurrence rates and stellar mass. However, measuring stellar\nmass in the red giant regime is very difficult. In particular, the\nspectroscopic masses of certain evolved stars, often referred to as \"retired\nA-stars\", have been questioned in the literature. Efforts to resolve this mass\ncontroversy using spectroscopy, interferometry and asteroseismology have so far\nbeen inconclusive. A recent ensemble study found a mass-dependent mass offset,\nbut the result was based on only 16 stars. With NASA's Transiting Exoplanet\nSurvey Satellite (TESS), we expand the investigation of the mass discrepancy to\na total of 92 low-luminosity stars, synonymous with the retired A-stars. We\nmeasure their characteristic oscillation frequency,\n$\\mathrm{\\nu}_{\\mathrm{max}}$, and the large frequency separation,\n$\\mathrm{\\Delta\\nu}$, from their TESS photometric time series. Using these\nmeasurements and asteroseismic scaling relations, we derive asteroseismic\nmasses and compare them with spectroscopic masses from five surveys, to\ncomprehensively study the alleged mass-dependent mass offset. We find a mass\noffset between spectroscopy and seismology that increases with stellar mass.\nHowever, we note that adopting the seismic mass scale does not have a\nsignificant effect on the planet occurrence-mass-metallicity correlation for\nthe so-called retired A-stars. We also report seismic measurements and masses\nfor 157 higher luminosity giants (mostly helium-core-burning) from the\nspectroscopic surveys.","PeriodicalId":501068,"journal":{"name":"arXiv - PHYS - Solar and Stellar Astrophysics","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - Solar and Stellar Astrophysics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.11736","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

One way to understand planet formation is through studying the correlations between planet occurrence rates and stellar mass. However, measuring stellar mass in the red giant regime is very difficult. In particular, the spectroscopic masses of certain evolved stars, often referred to as "retired A-stars", have been questioned in the literature. Efforts to resolve this mass controversy using spectroscopy, interferometry and asteroseismology have so far been inconclusive. A recent ensemble study found a mass-dependent mass offset, but the result was based on only 16 stars. With NASA's Transiting Exoplanet Survey Satellite (TESS), we expand the investigation of the mass discrepancy to a total of 92 low-luminosity stars, synonymous with the retired A-stars. We measure their characteristic oscillation frequency, $\mathrm{\nu}_{\mathrm{max}}$, and the large frequency separation, $\mathrm{\Delta\nu}$, from their TESS photometric time series. Using these measurements and asteroseismic scaling relations, we derive asteroseismic masses and compare them with spectroscopic masses from five surveys, to comprehensively study the alleged mass-dependent mass offset. We find a mass offset between spectroscopy and seismology that increases with stellar mass. However, we note that adopting the seismic mass scale does not have a significant effect on the planet occurrence-mass-metallicity correlation for the so-called retired A-stars. We also report seismic measurements and masses for 157 higher luminosity giants (mostly helium-core-burning) from the spectroscopic surveys.
利用 TESS 星体测量学对 249 颗演化恒星的光谱质量进行基准测量
了解行星形成的一种方法是研究行星出现率与恒星质量之间的相关性。然而,测量红巨星体系中的恒星质量非常困难。特别是某些演化恒星(通常被称为 "退休 A 星")的光谱质量在文献中一直受到质疑。迄今为止,利用光谱学、干涉测量学和小行星地震学来解决这一质量争议的努力还没有得出结论。最近的一项集合研究发现了与质量相关的质量偏移,但这一结果只基于 16 颗恒星。借助美国宇航局的凌日系外行星勘测卫星(TESS),我们将对质量偏差的研究扩大到了总共 92 颗低亮度恒星,它们与已退役的 A 星同义。我们从它们的TESS测光时间序列中测量了它们的特征振荡频率($mathrm{\nu}_{\mathrm{max}}$)和大频率间隔($mathrm{\Delta\nu}$)。利用这些测量数据和小行星地震比例关系,我们得出了小行星地震质量,并将它们与来自五次巡天的光谱质量进行比较,以全面研究所谓的质量偏移。我们发现光谱学和地震学之间的质量偏移随着恒星质量的增加而增加。不过,我们注意到,对于所谓的退役 A 星,采用地震质量标度对行星出现-质量-金属性的相关性并没有显著影响。我们还报告了来自光谱巡天的 157 个较高亮度巨星(大多为氦核燃烧型)的地震测量结果和质量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信