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| Physical vapor deposition synthesis of amorphous silicate layers and nanostructures as cosmic dust analogs | |
De Sio, A; Tozzetti, L; Wu, ZY; Marcelli, A; Guidi, MC; Della Ventura, G; Zhao, HF; Pan, ZY; Li, WJ; Guan, Y; Pace, E; Wu ZY(吴自玉) ; Zhang HF(张海峰)
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| 2016 | |
| Source Publication | ASTRONOMY & ASTROPHYSICS
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| ISSN | 1432-0746 |
| Volume | 589Pages:A4 |
| Subtype | Article |
| Abstract | Cosmic dust grains (CD) are part of the evolution of stars and planetary systems and pervade the interstellar medium. Thus, their spectral signature may be used to deduce the physical features of the observed astronomical objects or to study many physical and chemical processes in the interstellar medium. However, CD samples are available only from sample-and-return space missions. Thus, they are rare and not sufficient to be used to perform laboratory experiments of astrophysical interest, such as to produce reference spectra. In this contribution, we describe a new physical vapor deposition (PVD) technique that allows the production of amorphous samples with controlled chemical and morphological characteristics. In particular, this technique was developed to grow uniform or microstructured layers of Mg-Fe amorphous silicates (olivine or pyroxene) that are materials of wide interest for laboratory experiments. We discuss the first results that were achieved by applying this new synthesis method. The layers were studied by combining infrared spectroscopy, scanning electron microscopy, and X-ray spectroscopy. The X-ray microscopy was used for the first time to characterize the internal structure of the grains in these synthetic samples. Finally, future improvements of the technique and foreseen applications are discussed. |
| Keyword | ISM: structure infrared: ISM X-rays: ISM techniques: imaging spectroscopy instabilities interplanetary medium |
| DOI | 10.1051/0004-6361/201527222 |
| Indexed By | SCI ; ADS |
| Language | 英语 |
| WOS ID | WOS:000375318300016 |
| ADS Bibcode | 2016A&A...589A...4D |
| ADS URL | https://ui.adsabs.harvard.edu/abs/2016A&A...589A...4D |
| ADS CITATIONS | https://ui.adsabs.harvard.edu/abs/2016A&A...589A...4D/citations |
| Citation statistics |
Cited Times:2 [ADS]
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| Document Type | 期刊论文 |
| Identifier | http://ir.ihep.ac.cn/handle/311005/248031 |
| Collection | 中国科学院高能物理研究所 |
| Recommended Citation GB/T 7714 | De Sio, A,Tozzetti, L,Wu, ZY,et al. Physical vapor deposition synthesis of amorphous silicate layers and nanostructures as cosmic dust analogs[J]. ASTRONOMY & ASTROPHYSICS,2016,589:A4. |
| APA | De Sio, A.,Tozzetti, L.,Wu, ZY.,Marcelli, A.,Guidi, MC.,...&张海峰.(2016).Physical vapor deposition synthesis of amorphous silicate layers and nanostructures as cosmic dust analogs.ASTRONOMY & ASTROPHYSICS,589,A4. |
| MLA | De Sio, A,et al."Physical vapor deposition synthesis of amorphous silicate layers and nanostructures as cosmic dust analogs".ASTRONOMY & ASTROPHYSICS 589(2016):A4. |
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