The NANOGrav 11 yr Data Set: Constraints on Planetary Masses Around 45 Millisecond Pulsars
文献类型：期刊论文
| 作者 | Behrens, E. A.2; Ransom, S. M.3; Madison, D. R.4,5; Arzoumanian, Z.6; Crowter, K.7; DeCesar, M. E.8; Demorest, P. B.9; Dolch, T.10; Ellis, J. A.11; Ferdman, R. D.1 |
| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
 |
| 出版日期 | 2020-04-10 |
| 卷号 | 893期号:1页码:6 |
| ISSN号 | 2041-8205 |
| 关键词 | Millisecond pulsars Pulsar planets Pulsar timing method Exoplanet detection methods |
| DOI | 10.3847/2041-8213/ab8121 |
| 英文摘要 | We search for extrasolar planets around millisecond pulsars using pulsar timing data and seek to determine the minimum detectable planetary masses as a function of orbital period. Using the 11 yr data set from the North American Nanohertz Observatory for Gravitational Waves (NANOGrav), we look for variations from our models of pulse arrival times due to the presence of exoplanets. No planets are detected around the millisecond pulsars in the NANOGrav 11 yr data set, but taking into consideration the noise levels of each pulsar and the sampling rate of our observations, we develop limits that show we are sensitive to planetary masses as low as that of the moon. We analyzed potential planet periods, P, in the range 7 days P < 2000 days, with somewhat smaller ranges for some binary pulsars. The planetary-mass limit for our median-sensitivity pulsar within this period range is 1 M-moon (P/100 days)(-2/3). |
| WOS关键词 | BINARY ; SYSTEM ; STAR ; EVOLUTION |
| 资助项目 | National Science Foundation (NSF) Physics Frontiers Center[1430284] ; National Science Foundation[AST-1744119] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000526406000001 |
| 资助机构 | National Science Foundation (NSF) Physics Frontiers Center ; National Science Foundation (NSF) Physics Frontiers Center ; National Science Foundation ; National Science Foundation ; National Science Foundation (NSF) Physics Frontiers Center ; National Science Foundation (NSF) Physics Frontiers Center ; National Science Foundation ; National Science Foundation ; National Science Foundation (NSF) Physics Frontiers Center ; National Science Foundation (NSF) Physics Frontiers Center ; National Science Foundation ; National Science Foundation ; National Science Foundation (NSF) Physics Frontiers Center ; National Science Foundation (NSF) Physics Frontiers Center ; National Science Foundation ; National Science Foundation |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/55808]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Behrens, E. A. |
| 作者单位 | 1.Univ East Anglia, Sch Chem, Norwich NR4 7TJ, Norfolk, England 2.Ohio State Univ, Dept Astron, 4055 McPherson Lab,140 West 18th Ave, Columbus, OH 43210 USA 3.Natl Radio Astron Observ, 520 Edgemont Rd, Charlottesville, VA 22903 USA 4.West Virginia Univ, Dept Phys & Astron, POB 6315, Morgantown, WV 26506 USA 5.West Virginia Univ, Ctr Gravitat Waves & Cosmol, Chestnut Ridge Res Bldg, Morgantown, WV 26505 USA 6.NASA, XRay Astrophys Lab, Goddard Space Flight Ctr, Code 662, Greenbelt, MD 20771 USA 7.Univ British Columbia, Dept Phys & Astron, 6224 Agr Rd, Vancouver, BC V6T 1Z1, Canada 8.Lafayette Coll, Dept Phys, Easton, PA 18042 USA 9.Natl Radio Astron Observ, 1003 Lopezville Rd, Socorro, NM 87801 USA 10.Hillsdale Coll, Dept Phys, 33 East Coll St, Hillsdale, MI 49242 USA |
| 推荐引用方式 GB/T 7714 | Behrens, E. A.,Ransom, S. M.,Madison, D. R.,et al. The NANOGrav 11 yr Data Set: Constraints on Planetary Masses Around 45 Millisecond Pulsars[J]. ASTROPHYSICAL JOURNAL LETTERS,2020,893(1):6. |
| APA | Behrens, E. A..,Ransom, S. M..,Madison, D. R..,Arzoumanian, Z..,Crowter, K..,...&Zhu, W. W..(2020).The NANOGrav 11 yr Data Set: Constraints on Planetary Masses Around 45 Millisecond Pulsars.ASTROPHYSICAL JOURNAL LETTERS,893(1),6. |
| MLA | Behrens, E. A.,et al."The NANOGrav 11 yr Data Set: Constraints on Planetary Masses Around 45 Millisecond Pulsars".ASTROPHYSICAL JOURNAL LETTERS 893.1(2020):6. |
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来源：国家天文台
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