Expanding the Ultracompacts: Gravitational-wave-driven Mass Transfer in the Shortest-period Binaries with Accretion Disks
文献类型：期刊论文
| 作者 | Chakraborty, Joheen19; Burdge, Kevin B.19; Rappaport, Saul A.19; Munday, James18; Chen HL(陈海亮)16,17 ; Rodríguez-Gil, Pablo14,15; Dhillon, V. S.13,15; Hughes, Scott A.19; Nelemans, Gijs10,11,12; Kara, Erin19
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2024-12-01 |
| 卷号 | 977期号:2 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ad9563 |
| 产权排序 | 第3完成单位 |
| 文献子类 | Article |
| 英文摘要 | We report the discovery of three ultracompact binary white dwarf systems hosting accretion disks, with orbital periods of 7.95, 8.68, and 13.15 minutes. This significantly augments the population of mass-transferring binaries at the shortest periods, and provides the first evidence that accretors in ultracompacts can be dense enough to host accretion disks even below 10 minutes (where previously only direct-impact accretors were known). In the two shortest-period systems, we measured changes in the orbital periods driven by the combined effect of gravitational-wave emission and mass transfer. We find P is negative in one case, and positive in the other. This is only the second system measured with a positive P , and it is the most compact binary known that has survived a period minimum. Using these systems as examples, we show how the measurement of P is a powerful tool in constraining the physical properties of binaries, e.g., the mass and mass-radius relation of the donor stars. We find that the chirp masses of ultracompact binaries at these periods seem to cluster around Mc similar to 0.3M circle dot , perhaps suggesting a common origin for these systems or a selection bias in electromagnetic discoveries. Our new systems are among the highest-amplitude known gravitational-wave sources in the millihertz regime, providing an exquisite opportunity for multimessenger study with future space-based observatories such as LISA and TianQin. We discuss how such systems provide fascinating laboratories to study the unique regime where the accretion process is mediated by gravitational waves. |
| 学科主题 | 天文学 ; 恒星与银河系 |
| URL标识 | 查看原文 |
| 出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
| WOS关键词 | AM CVN STARS ; MINUTE ORBITAL PERIOD ; TRANSIENT FACILITY DATA ; WHITE-DWARF BINARIES ; CATACLYSMIC VARIABLES ; CONVECTIVE BOUNDARIES ; COMPACT BINARIES ; X-RAY ; EVOLUTION ; ASTROPHYSICS |
| 资助项目 | Spanish Agencia Estatal de Investigacion del Ministerio de Ciencia e Innovacion ( MCIN/AEI ); European Regional Development Fund ( ERDF )[PID2021-124879NB-I00]; Royal Society University Research Fellowship[URF \ R1 \ 231496]; National Key R&D Program of China[2021YFA1600403]; National Natural Science Foundation of China[12288102]; National Natural Science Foundation of China[12333008]; National Natural Science Foundation of China[12422305]; National Science Foundation[AST-1440341]; Caltech; IPAC; Weizmann Institute for Science; Oskar Klein Center at Stockholm University; University of Maryland; University of Washington; Deutsches Elektronen Synchrotron; Humboldt University; Los Alamos National Laboratories; TANGO Consortium of Taiwan; University of Wisconsin at Milwaukee; Lawrence Berkeley National Laboratories; Science and Technology Facilities Council[ST/Z000033/1]; W. M. Keck Foundation |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001380803000001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | Spanish Agencia Estatal de Investigacion del Ministerio de Ciencia e Innovacion ( MCIN/AEI ) ; European Regional Development Fund ( ERDF )[PID2021-124879NB-I00] ; Royal Society University Research Fellowship[URF \ R1 \ 231496] ; National Key R&D Program of China[2021YFA1600403] ; National Natural Science Foundation of China[12288102, 12333008, 12422305] ; National Science Foundation[AST-1440341] ; Caltech ; IPAC ; Weizmann Institute for Science ; Oskar Klein Center at Stockholm University ; University of Maryland ; University of Washington ; Deutsches Elektronen Synchrotron ; Humboldt University ; Los Alamos National Laboratories ; TANGO Consortium of Taiwan ; University of Wisconsin at Milwaukee ; Lawrence Berkeley National Laboratories ; Science and Technology Facilities Council[ST/Z000033/1] ; W. M. Keck Foundation |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/27910]  |
| 专题 | 云南天文台_大样本恒星演化研究组 |
| 作者单位 | 1.Department of Physics, University of California, Santa Barbara, CA 93106, USA 2.Anton Pannekoek Institute for Astronomy, University of Amsterdam, 1090 GE Amsterdam, The Netherlands; 3.School of Physics, University College Cork, Cork, Ireland; 4.Max-Planck-Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg, Germany; 5.Division of Physics, Mathematics & Astronomy, California Institute of Technology, Pasadena, CA 91125, USA; 6.Caltech Optical Observatories, California Institute of Technology, Pasadena, CA 91125, USA; 7.IPAC, California Institute of Technology, 1200 E. California Boulevard, Pasadena, CA 91125, USA; 8.Departament de Física, Universitat Politècnica de Catalunya, c/Esteve Terrades 5, 08860 Castelldefels, Spain; 9.DIRAC Institute, Department of Astronomy, University of Washington, 3910 15th Avenue NE, Seattle, WA 98195, USA; 10.SRON, Netherlands Institute for Space Research, Sorbonnelaan 2, NL-3584 CA Utrecht, The Netherlands; |
| 推荐引用方式 GB/T 7714 | Chakraborty, Joheen,Burdge, Kevin B.,Rappaport, Saul A.,et al. Expanding the Ultracompacts: Gravitational-wave-driven Mass Transfer in the Shortest-period Binaries with Accretion Disks[J]. ASTROPHYSICAL JOURNAL,2024,977(2). |
| APA | Chakraborty, Joheen.,Burdge, Kevin B..,Rappaport, Saul A..,Munday, James.,陈海亮.,...&Wong, Tin Long Sunny.(2024).Expanding the Ultracompacts: Gravitational-wave-driven Mass Transfer in the Shortest-period Binaries with Accretion Disks.ASTROPHYSICAL JOURNAL,977(2). |
| MLA | Chakraborty, Joheen,et al."Expanding the Ultracompacts: Gravitational-wave-driven Mass Transfer in the Shortest-period Binaries with Accretion Disks".ASTROPHYSICAL JOURNAL 977.2(2024). |
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来源：云南天文台
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