Gaps and Rings in an ALMA Survey of Disks in the Taurus Star-forming Region
文献类型：期刊论文
| 作者 | Long, Feng1,2; Pinilla, Paola3; Herczeg, Gregory J.1; Harsono, Daniel4; Dipierro, Giovanni5; Pascucci, Ilaria6,7; Hendler, Nathan6; Tazzari, Marco8; Ragusa, Enrico9; Salyk, Colette10 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2018-12-10 |
| 卷号 | 869期号:1页码:17 |
| 关键词 | circumstellar matter planets and satellites: formation protoplanetary disks |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/aae8e1 |
| 通讯作者 | Long, Feng(longfeng@pku.edu.cn) |
| 英文摘要 | Rings are the most frequently revealed substructure in Atacama Large Millimeter/submillimeter Array (ALMA) dust observations of protoplanetary disks, but their origin is still hotly debated. In this paper, we identify dust substructures in 12 disks and measure their properties to investigate how they form. This subsample of disks is selected from a high-resolution (similar to 0 ''.12) ALMA 1.33 mm survey of 32 disks in the Taurus star-forming region, which was designed to cover a wide range of brightness and to be unbiased to previously known substructures. While axisymmetric rings and gaps are common within our sample, spiral patterns and high-contrast azimuthal asymmetries are not detected. Fits of disk models to the visibilities lead to estimates of the location and shape of gaps and rings, the flux in each disk component, and the size of the disk. The dust substructures occur across a wide range of stellar mass and disk brightness. Disks with multiple rings tend to be more massive and more extended. The correlation between gap locations and widths, the intensity contrast between rings and gaps, and the separations of rings and gaps could all be explained if most gaps are opened by low-mass planets (super-Earths and Neptunes) in the condition of low disk turbulence (alpha = 10(-4)). The gap locations are not well correlated with the expected locations of CO and N-2 ice lines, so condensation fronts are unlikely to be a universal mechanism to create gaps and rings, though they may play a role in some cases. |
| WOS关键词 | SNOW-LINE ; PROTOPLANETARY ; ARCHITECTURE ; ACCRETION ; EVOLUTION ; MIGRATION |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000452386600008 |
| 出版者 | IOP PUBLISHING LTD |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/20545]  |
| 专题 | 中国科学院紫金山天文台 |
| 通讯作者 | Long, Feng |
| 作者单位 | 1.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 2.Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China 3.Univ Arizona, Dept Astron, Steward Observ, 933 North Cherry Ave, Tucson, AZ 85721 USA 4.Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden, Netherlands 5.Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, England 6.Univ Arizona, Lunar & Planetary Lab, Tucson, AZ 85721 USA 7.NASA, Earths Other Solar Syst Team, Nexus Exoplanet Syst Sci, Greenbelt, MD 20771 USA 8.Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England 9.Univ Milan, Dipartimento Fis, Via Celoria 16, I-20133 Milan, Italy 10.Vassar Coll, Phys & Astron Dept, 124 Raymond Ave, Poughkeepsie, NY 12604 USA |
| 推荐引用方式 GB/T 7714 | Long, Feng,Pinilla, Paola,Herczeg, Gregory J.,et al. Gaps and Rings in an ALMA Survey of Disks in the Taurus Star-forming Region[J]. ASTROPHYSICAL JOURNAL,2018,869(1):17. |
| APA | Long, Feng.,Pinilla, Paola.,Herczeg, Gregory J..,Harsono, Daniel.,Dipierro, Giovanni.,...&Gully-Santiago, Michael.(2018).Gaps and Rings in an ALMA Survey of Disks in the Taurus Star-forming Region.ASTROPHYSICAL JOURNAL,869(1),17. |
| MLA | Long, Feng,et al."Gaps and Rings in an ALMA Survey of Disks in the Taurus Star-forming Region".ASTROPHYSICAL JOURNAL 869.1(2018):17. |
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来源：紫金山天文台
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