Study of the Plutino Object (208996) 2003 AZ(84) from Stellar Occultations: Size, Shape, and Topographic Features
文献类型：期刊论文
| 作者 | Dias-Oliveira, A.1; Sicardy, B.2; Ortiz, J. L.3; Braga-Ribas, F.1,4; Leiva, R.2,5; Vieira-Martins, R.1,6,7; Benedetti-Rossi, G.1; Camargo, J. I. B.1,7; Assafin, M.8; Gomes-Junior, A. R.8 |
| 刊名 | ASTRONOMICAL JOURNAL
 |
| 出版日期 | 2017-07-01 |
| 卷号 | 154期号:1 |
| ISSN号 | 0004-6256 |
| 关键词 | Kuiper belt objects: individual (208996, 2003AZ84) occultations planets and satellites: fundamental parameters planets and satellites: surfaces |
| 通讯作者 | Dias-Oliveira, A.(Observ Nacl MCTI, Rua Gen Jose Cristino 77, BR-20921400 Rio De Janeiro, RJ, Brazil) |
| 产权排序 | 第10完成单位 |
| 英文摘要 | We present results derived from four stellar occultations by the plutino object (208996) 2003. AZ(84), detected on 2011 January 8 (single-chord event), 2012 February 3 (multi-chord), 2013 December 2 (single-chord), and 2014 November 15 (multi-chord). Our observations rule out an oblate spheroid solution for 2003. AZ(84)'s shape. Instead, assuming hydrostatic equilibrium, we find that a Jacobi triaxial solution with semiaxes (470 +/- 20) x (383 +/- 10) x (245 +/- 8) km can better account for all our occultation observations. Combining these dimensions with the rotation period of the body (6.75 hr) and the amplitude of its rotation light curve, we derive a density rho = 0.87 +/- 0.01g cm(-3), a geometric albedo p(V) = 0.097 +/- 0.009. A grazing chord observed during the 2014 occultation reveals a topographic feature along 2003. AZ(84) ' s limb, which can be interpreted as an abrupt chasm of width similar to 23. km and depth >8 km, or a smooth depression of width similar to 80. km and depth similar to 13 km (or an intermediate feature between those two extremes). |
| 学科主题 | 天文学 |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | TRANS-NEPTUNIAN OBJECTS ; SHORT-TERM VARIABILITY ; SOLAR-SYSTEM ; 2060 CHIRON ; ALBEDO ; RADIUS ; PLANET ; CENTAURS |
| 收录类别 | SCI |
| 原文出处 | http://stacks.iop.org/1538-3881/154/i=1/a=22?key=crossref.a63ccd90ed26020439afdb64a6a7c4fa |
| 语种 | 英语 |
| WOS记录号 | WOS:000404755100001 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/10153]  |
| 专题 | 云南天文台_双星与变星研究组 |
| 作者单位 | 1.Observ Nacl MCTI, Rua Gen Jose Cristino 77, BR-20921400 Rio De Janeiro, RJ, Brazil 2.Univ Paris Diderot, Univ Pierre & Marie Curie, CNRS UMR 8109, LESIA Observ Paris, 5 Pl Jules Janssen, F-92195 Meudon, France 3.Inst Astrofis Andalucia CSIC, Apt 3004, E-18080 Granada, Spain 4.Fed Univ Technol Parana UTFPR DAFIS, R Sete Setembro 3165, BR-80230901 Curitiba, Parana, Brazil 5.Pontificia Univ Catolica Chile, Fac Fis, Inst Astrofis, Ave Vicuna Mackenna 4860, Santiago 7820436, Chile 6.IMCCE Observ Paris, 77 Ave Denfert Rochereau, F-75014 Paris, France 7.Lab Interinst E Astron LIneA, Rua Gen Jose Cristino 77, BR-20921400 Rio De Janeiro, RJ, Brazil 8.Observ Valongo UFRJ, Ladeira Pedro Antonio 43, BR-20080090 Rio De Janeiro, RJ, Brazil 9.Phys Res Lab, Ahmadabad 380009, Gujarat, India 10.Chinese Acad Sci, Yunnan Observ, Beijing, Yunnan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dias-Oliveira, A.,Sicardy, B.,Ortiz, J. L.,et al. Study of the Plutino Object (208996) 2003 AZ(84) from Stellar Occultations: Size, Shape, and Topographic Features[J]. ASTRONOMICAL JOURNAL,2017,154(1). |
| APA | Dias-Oliveira, A..,Sicardy, B..,Ortiz, J. L..,Braga-Ribas, F..,Leiva, R..,...&Zhu LY.(2017).Study of the Plutino Object (208996) 2003 AZ(84) from Stellar Occultations: Size, Shape, and Topographic Features.ASTRONOMICAL JOURNAL,154(1). |
| MLA | Dias-Oliveira, A.,et al."Study of the Plutino Object (208996) 2003 AZ(84) from Stellar Occultations: Size, Shape, and Topographic Features".ASTRONOMICAL JOURNAL 154.1(2017). |
入库方式： OAI收割
来源：云南天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。