Helium-burning Blue Large-amplitude Pulsators: A Population Study with BPASS
文献类型：期刊论文
| 作者 | Zhang ZY(张正阳)1,3,4; Byrne, Conor M.2; Wu CY(吴程远)1,3; Wang B(王博)1,3 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2025-11-10 |
| 卷号 | 993期号:2 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ae0ca0 |
| 产权排序 | 第1完成单位 |
| 文献子类 | Article |
| 英文摘要 | Blue large-amplitude pulsators (BLAPs) are a class of radially pulsating stars with effective temperatures ranging from 20,000 to 35,000 K and pulsation periods between 7 and 75 minutes. This study utilizes the Binary Population and Spectral Synthesis code to investigate helium-burning stars as a formation channel for BLAPs in the Milky Way. The progenitor stars have initial masses of 3-6 M-circle dot, resulting in BLAPs with final masses of 0.5-1.2 M-circle dot. Based on a constant star formation rate of 3 M-circle dot yr(-1) and solar metallicity (Z = 0.020), population synthesis predicts approximately 14,351 helium-burning BLAPs in the Milky Way: 12,799 with main sequence (MS) companions and 1551 with evolved/compact-object companions. Helium-burning BLAPs show prolonged lifetimes in the pulsation region and a narrow stellar age range for entering this regime (log(t/yr) = 8.0-8.6), unlike pre-white dwarf models. BLAPs with MS companions typically form via Roche lobe overflow, leading to longer orbital periods (similar to 100 days). Those with evolved/compact-object companions form through common envelope evolution, resulting in shorter periods. While Galactic extinction makes most BLAPs faint (apparent magnitudes >25), future surveys like WFST and VRO LSST are expected to detect approximately 500-900. This research establishes helium-burning stars as a significant BLAP contributor and offers testable predictions regarding their binary properties and Galactic distribution. |
| 学科主题 | 天文学 ; 恒星与银河系 |
| URL标识 | 查看原文 |
| 出版地 | No.2 The Distillery, Glassfields, Avon Street, Bristol, ENGLAND |
| WOS关键词 | PERIOD VARIABLE-STARS ; SUBDWARF B STARS ; EVOLUTIONARY STATUS ; SOLAR-NEIGHBORHOOD ; DRIVING MECHANISM ; BINARY EVOLUTION ; MILKY-WAY ; MASS ; METALLICITY ; COMPANIONS |
| 资助项目 | the Yunnan Revitalization Talent Support Program[Young Talent project]; the Yunnan Fundamental Research Project[202201BC070003]; the Yunnan Fundamental Research Project[202501AS070005]; the Yunnan Fundamental Research Project[202501AW070001]; the Yunnan Revitalization Talent support Program[Yunling Scholar Project]; MOST divided by National Natural Science Foundation of China (NSFC)[12288102]; MOST divided by National Natural Science Foundation of China (NSFC)[12225304]; MOST divided by National Natural Science Foundation of China (NSFC)[12090040/12090043]; MOST divided by National Natural Science Foundation of China (NSFC)[12473032]; the science research grant from China Manned Space Project[CMS-CSST-2021-A12]; the United Kingdom Science and Technology Facilities Council (STFC) Consolidated Grant[T/X001121/1]; MOST divided by National Key Research and Development Program of China (NKPs)[2021YFA1600404]; the International Centre of Supernovae, Yunnan Key Laboratory[202302AN360001] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001606895200001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | the Yunnan Revitalization Talent Support Program[Young Talent project] ; the Yunnan Fundamental Research Project[202201BC070003, 202501AS070005, 202501AW070001] ; the Yunnan Revitalization Talent support Program[Yunling Scholar Project] ; MOST divided by National Natural Science Foundation of China (NSFC)[12288102, 12225304, 12090040/12090043, 12473032] ; the science research grant from China Manned Space Project[CMS-CSST-2021-A12] ; the United Kingdom Science and Technology Facilities Council (STFC) Consolidated Grant[T/X001121/1] ; MOST divided by National Key Research and Development Program of China (NKPs)[2021YFA1600404] ; the International Centre of Supernovae, Yunnan Key Laboratory[202302AN360001] |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/28697]  |
| 专题 | 云南天文台_丽江天文观测站（南方基地） |
| 通讯作者 | Zhang ZY(张正阳) |
| 作者单位 | 1.International Centre of Supernovae, Yunnan Key Laboratory, Kunming 650216, People’s Republic of China; 2.Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV 4 7AL, UK 3.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, People’s Republic of China; zhangzhengyang@ynao.ac.cn, wangbo@ynao.ac.cn; 4.University of the Chinese Academy of Sciences, 19A Yuquan Road, Shijingshan District, Beijing 100049, People’s Republic of China; |
| 推荐引用方式 GB/T 7714 | Zhang ZY,Byrne, Conor M.,Wu CY,et al. Helium-burning Blue Large-amplitude Pulsators: A Population Study with BPASS[J]. ASTROPHYSICAL JOURNAL,2025,993(2). |
| APA | 张正阳,Byrne, Conor M.,吴程远,&王博.(2025).Helium-burning Blue Large-amplitude Pulsators: A Population Study with BPASS.ASTROPHYSICAL JOURNAL,993(2). |
| MLA | 张正阳,et al."Helium-burning Blue Large-amplitude Pulsators: A Population Study with BPASS".ASTROPHYSICAL JOURNAL 993.2(2025). |
入库方式： OAI收割
来源：云南天文台
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