A tale of three galaxies: A "CLUMPY" view of the spectroscopically anomalous galaxies IRAS F10398+1455, IRAS F21013-0739 and SDSS J0808+3948
文献类型：期刊论文
| 作者 | Xie, Yanxia1,2,3; Nikutta, Robert4; Hao, Lei1; Li, Aigen2 |
| 刊名 | PLANETARY AND SPACE SCIENCE
 |
| 出版日期 | 2016-11-15 |
| 卷号 | 133页码:23-30 |
| 关键词 | Infrared Extinction Dust Model |
| ISSN号 | 0032-0633 |
| DOI | 10.1016/j.pss.2016.05.009 |
| 英文摘要 | We investigate the dust properties in three spectroscopically anomalous galaxies (IRAS F10398+1455, IRAS F21013-0739 and SDSS J0808+3948). Their Spitzer/IRS spectra are characterized by a steep similar to 5-8 gm emission continuum, strong emission bands from polycyclic aromatic hydrocarbon (PAH) molecules, and prominent 10 mu m silicate emission. The steep similar to 5-8 mu m continuum and strong PAH emission features suggest the presence of starbursts, while the silicate emission is indicative of significant heating from AGNs. The simultaneous detection of these two observational properties has rarely been reported on galactic scale. We employ the PAHETT software to estimate their starlight contributions, and the CLUMPY model for the components contributed by the AGN tori. We find that the CLUMPY model is generally successful in explaining the overall dust infrared emission, although it appears to emit too flat at the similar to 5-8 mu m continuum to be consistent with that observed in IRAS F10398+1455 and IRAS F210130739. The flat similar to 5-8 mu m continuum calculated from the CLUMPY model could arise from the adopted specific silicate opacity of Ossenkopf et al. (1992) which exceeds that of the Draine and Lee (1984) "astronomical silicate" by a factor up to 2 in the similar to 5-8 mu m wavelength range. Future models with a variety of dust species incorporated in the CLUMPY radiation transfer regime are needed for a thorough understanding of the dust properties of these spectroscopically anomalous galaxies. (C) 2016 Elsevier Ltd. All rights reserved. |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000389284800005 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.226.72/handle/331011/32677]  |
| 专题 | 中国科学院上海天文台 |
| 通讯作者 | Xie, Yanxia; Nikutta, Robert; Hao, Lei; Li, Aigen |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China 2.Univ Missouri, Dept Phys & Astron, Columbia, MO 65211 USA 3.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 4.Pontificia Univ Catolica Chile, Inst Astrofis, Santiago 22, Chile |
| 推荐引用方式 GB/T 7714 | Xie, Yanxia,Nikutta, Robert,Hao, Lei,et al. A tale of three galaxies: A "CLUMPY" view of the spectroscopically anomalous galaxies IRAS F10398+1455, IRAS F21013-0739 and SDSS J0808+3948[J]. PLANETARY AND SPACE SCIENCE,2016,133:23-30. |
| APA | Xie, Yanxia,Nikutta, Robert,Hao, Lei,&Li, Aigen.(2016).A tale of three galaxies: A "CLUMPY" view of the spectroscopically anomalous galaxies IRAS F10398+1455, IRAS F21013-0739 and SDSS J0808+3948.PLANETARY AND SPACE SCIENCE,133,23-30. |
| MLA | Xie, Yanxia,et al."A tale of three galaxies: A "CLUMPY" view of the spectroscopically anomalous galaxies IRAS F10398+1455, IRAS F21013-0739 and SDSS J0808+3948".PLANETARY AND SPACE SCIENCE 133(2016):23-30. |
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来源：上海天文台
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