| Temporal variability and obscuration effects in the X-ray emission of classical nova V339 Delphini (Nova Delphini 2013) | |
Pei, Songpeng1; Ospina, Nataly2; Zhang, Xiaowan1; Li, Qiang3,4; Ou, Ziwei5; Yang, Taozhi6; Cai YZ(蔡永志)7,8,9
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| 发表期刊 | Monthly Notices of the Royal Astronomical Society
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| 2025-04-01 | |
| 卷号 | 538期号:3页码:2186-2203 |
| DOI | 10.1093/mnras/staf420 |
| 产权排序 | 第7完成单位 |
| 收录类别 | SCI ; EI |
| 关键词 | white dwarfs X rays: binaries X rays: individual: V339 Del transients: novae |
| 摘要 | In this study, we present a detailed analysis of public archival soft X-ray data on the classical nova V339 Delphini (Nova Del 2013) during its outburst, obtained using the Chandra High-Resolution Camera Spectrometer and Low Energy Transmission Grating, as well as XMM-Newton in 2013. The observations, spanning from days 85.2 to 112.0 after the optical maximum, capture the nova during its luminous supersoft X-ray source phase. The spectra reveal numerous absorption features with blue-shifted velocities ranging from 724 to 1474 km s, with the majority of lines blue-shifted by approximately 1200 km s. We confirm the presence of a short-period modulation of the X-ray flux with a period of approximately 54 s, as well as the drift of this period, which was detected on days 97.0 and 112.0 during the outburst with both XMM-Newton and Chandra. This period modulation is transient in nature, with significant variations in amplitude and pulse profile over time-scales of a few thousand seconds, likely due to temporary obscuration events that affect the emission from the central hot source. The pulse profiles exhibit substantial deviations from a pure sinusoidal shape, which may be related to the period drift. Additionally, the modulation amplitude shows a possible anticorrelation with the count rates on day 97.0, likely also caused by temporary obscuration events influencing the central source's emission. © 2025 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society. |
| 资助项目 | N/A |
| 项目资助者 | N/A |
| 语种 | 英语 |
| 学科领域 | 天文学 ; 恒星与银河系 ; 星系与宇宙学 |
| 文章类型 | Journal article (JA) |
| ISSN | 0035-8711 |
| URL | 查看原文 |
| EI入藏号 | 20251418154054 |
| EI主题词 | White dwarfs |
| EI分类号 | 1301.1.3 Atomic and Molecular Physics - 1301.1.3.1 Spectroscopy - 1302.1.2 Extraterrestrial Physics and Stellar Phenomena - 741.1 Light/Optics - 741.3 Optical Devices and Systems |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/28236 |
| 专题 | 南方基地 中国科学院天体结构与演化重点实验室 |
| 作者单位 | 1.School of Physics and Electrical Engineering, Liupanshui Normal University, Guizhou, Liupanshui, 553004, China; 2.Department of Theoretical Physics, University Autonoma Madrid, Madrid, E-28049, Spain; 3.School of Physics and Electronic Science, Qiannan Normal University for Nationalities, Duyun, 558000, China; 4.Qiannan Key Laboratory of Radio Astronomy, Guizhou Province, Duyun, 558000, China; 5.Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, 201210, China; 6.Ministry of Education Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University, Xi'an, 710049, China; 7.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650216, China; 8.International Centre of Supernovae, Yunnan Key Laboratory, Kunming, 650216, China; 9.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, 650216, China |
| 推荐引用方式 GB/T 7714 | Pei, Songpeng,Ospina, Nataly,Zhang, Xiaowan,et al. Temporal variability and obscuration effects in the X-ray emission of classical nova V339 Delphini (Nova Delphini 2013)[J]. Monthly Notices of the Royal Astronomical Society,2025,538(3):2186-2203. |
| APA | Pei, Songpeng.,Ospina, Nataly.,Zhang, Xiaowan.,Li, Qiang.,Ou, Ziwei.,...&蔡永志.(2025).Temporal variability and obscuration effects in the X-ray emission of classical nova V339 Delphini (Nova Delphini 2013).Monthly Notices of the Royal Astronomical Society,538(3),2186-2203. |
| MLA | Pei, Songpeng,et al."Temporal variability and obscuration effects in the X-ray emission of classical nova V339 Delphini (Nova Delphini 2013)".Monthly Notices of the Royal Astronomical Society 538.3(2025):2186-2203. |
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