CLIcK: a Continuum and Line fItting Kit for circumstellar disks
文献类型：期刊论文
| 作者 | Liu, Yao1,2 ; Pascucci, Ilaria1,3,4; Henning, Thomas1
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| 刊名 | ASTRONOMY & ASTROPHYSICS
 |
| 出版日期 | 2019-03-12 |
| 卷号 | 623页码:9 |
| ISSN号 | 1432-0746 |
| 关键词 | protoplanetary disks radiative transfer astrochemistry line: formation |
| DOI | 10.1051/0004-6361/201834418 |
| 通讯作者 | Liu, Yao(yliu@mpia.de) |
| 英文摘要 | Infrared spectroscopy with medium to high spectral resolution is essential to characterize the gas content of circumstellar disks. Unfortunately, conducting continuum and line radiative transfer of thermochemical disk models is too time-consuming to carry out large parameter studies. Simpler approaches using a slab model to fit continuum-subtracted spectra require the identification of either the global or local continuum. Continuum subtraction, particularly when covering a broad wavelength range, is challenging but critical in rich molecular spectra as hot (several hundreds K) molecular emission lines can also produce a pseudo continuum. In this work, we present CLIcK, a flexible tool to simultaneously fit the continuum and line emission. The continuum model presented by Dullemond, Dominik, and Natta, and a plane-parallel slab of gas in local thermodynamic equilibrium are adopted to simulate the continuum and line emission, respectively, both of them are fast enough for homogeneous studies of large disk samples. We applied CLIcK to fit the observed water spectrum of the AA Tau disk and obtained water vapor properties that are consistent with literature results. We also demonstrate that CLIcK properly retrieves the input parameters used to simulate the water spectrum of a circumstellar disk. CLIcK will be a versatile tool for the interpretation of future James Webb Space Telescope spectra. |
| WOS关键词 | T-TAURI STARS ; PROTOPLANETARY DISKS ; NE-II ; DUST ; GAS ; EVOLUTION ; EMISSION ; REGION |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | EDP SCIENCES S A |
| WOS记录号 | WOS:000460891700002 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/23897]  |
| 专题 | 中国科学院紫金山天文台 |
| 通讯作者 | Liu, Yao |
| 作者单位 | 1.Max Planck Inst Astron, Konigsthul 17, D-69117 Heidelberg, Germany 2.Chinese Acad Sci, Purple Mt Observ, 2 West Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China 3.Univ Arizona, Lunar & Planetary Lab, Tucson, AZ 85721 USA 4.NASA Nexus Exoplanet Syst Sci, Earths Other Solar Syst Team, Washington, DC USA |
| 推荐引用方式 GB/T 7714 | Liu, Yao,Pascucci, Ilaria,Henning, Thomas. CLIcK: a Continuum and Line fItting Kit for circumstellar disks[J]. ASTRONOMY & ASTROPHYSICS,2019,623:9. |
| APA | Liu, Yao,Pascucci, Ilaria,&Henning, Thomas.(2019).CLIcK: a Continuum and Line fItting Kit for circumstellar disks.ASTRONOMY & ASTROPHYSICS,623,9. |
| MLA | Liu, Yao,et al."CLIcK: a Continuum and Line fItting Kit for circumstellar disks".ASTRONOMY & ASTROPHYSICS 623(2019):9. |
入库方式： OAI收割
来源：紫金山天文台
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