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Strong Carbon Features and a Red Early Color in the Underluminous Type Ia SN 2022xkq

文献类型：期刊论文

作者Pearson, Jeniveve36; Sand, David J.36; Lundqvist, Peter37; Galbany, Lluís38,39; Andrews, Jennifer E.40; Bostroem, K. Azalee36; Dong, Yize41; Hoang, Emily41; Hosseinzadeh, Griffin36; Janzen, Daryl42
刊名ASTROPHYSICAL JOURNAL
出版日期2024
卷号960期号:1
ISSN号0004-637X
DOI10.3847/1538-4357/ad0153
产权排序第21完成单位
文献子类Article
英文摘要We present optical, infrared, ultraviolet, and radio observations of SN 2022xkq, an underluminous fast-declining Type Ia supernova (SN Ia) in NGC 1784 (D approximate to 31 Mpc), from <1 to 180 days after explosion. The high-cadence observations of SN 2022xkq, a photometrically transitional and spectroscopically 91bg-like SN Ia, cover the first days and weeks following explosion, which are critical to distinguishing between explosion scenarios. The early light curve of SN 2022xkq has a red early color and exhibits a flux excess that is more prominent in redder bands; this is the first time such a feature has been seen in a transitional/91bg-like SN Ia. We also present 92 optical and 19 near-infrared (NIR) spectra, beginning 0.4 days after explosion in the optical and 2.6 days after explosion in the NIR. SN 2022xkq exhibits a long-lived C i 1.0693 mu m feature that persists until 5 days post-maximum. We also detect C ii lambda 6580 in the pre-maximum optical spectra. These lines are evidence for unburnt carbon that is difficult to reconcile with the double detonation of a sub-Chandrasekhar mass white dwarf. No existing explosion model can fully explain the photometric and spectroscopic data set of SN 2022xkq, but the considerable breadth of the observations is ideal for furthering our understanding of the processes that produce faint SNe Ia.
学科主题天文学
URL标识查看原文
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
WOS关键词DELAYED-DETONATION MODELS ; RADIATIVE-TRANSFER CALCULATIONS ; CHANDRASEKHAR-MASS EXPLOSIONS ; ZTF EARLY OBSERVATIONS ; OSIRIS TUNABLE IMAGER ; NEAR-INFRARED CARBON ; WHITE-DWARF MODELS ; LIGHT-CURVE SHAPES ; PROGENITOR SYSTEM ; SUPERNOVA 1991BG
资助项目National Science Foundation (NSF)https://doi.org/10.13039/100000001[AST-1821987]; National Science Foundation (NSF)https://doi.org/10.13039/100000001[1813466]; National Science Foundation (NSF)https://doi.org/10.13039/100000001[1908972]; National Science Foundation (NSF)https://doi.org/10.13039/100000001[2108032]; National Science Foundation (NSF)https://doi.org/10.13039/100000001[2308181]; NSF[2020-1864]; Heising-Simons Foundation
WOS研究方向Astronomy & Astrophysics
语种英语
出版者IOP Publishing Ltd
WOS记录号WOS:001127888400001
资助机构National Science Foundation (NSF)https://doi.org/10.13039/100000001[AST-1821987, 1813466, 1908972, 2108032, 2308181] ; NSF[2020-1864] ; Heising-Simons Foundation
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/26453]  
专题云南天文台_丽江天文观测站（南方基地）
云南天文台_中国科学院天体结构与演化重点实验室
作者单位1.National Astronomical Research Institute of Thailand (NARIT), Don Kaeo, Mae Rim District, Chiang Mai 50180, Thailand;
2.Department of Astronomy, The Ohio State University, 140 West 18th Avenue, Columbus, OH 43210, USA;
3.Center for Cosmology and Astroparticle Physics, The Ohio State University, 191 West Woodruff Ave, Columbus, OH 43210, USA
4.School of Mathematical and Physical Sciences, Macquarie University, NSW 2109, Australia;
5.Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, 440 W. Brooks, Norman, OK 73019-2061, USA;
6.Aix-Marseille Univ, CNRS, CNES, LAM, F-13388 Marseille, France;
7.Observatories of the Carnegie Institute for Science, 813 Santa Barbara Street, Pasadena, CA 91101-1232, USA;
8.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China;
9.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, People's Republic of China;
10.International Centre of Supernovae, Yunnan Key Laboratory, Kunming 650216, People's Republic of China;
推荐引用方式
GB/T 7714		 Pearson, Jeniveve,Sand, David J.,Lundqvist, Peter,et al. Strong Carbon Features and a Red Early Color in the Underluminous Type Ia SN 2022xkq[J]. ASTROPHYSICAL JOURNAL,2024,960(1).
APA Pearson, Jeniveve.,Sand, David J..,Lundqvist, Peter.,Galbany, Lluís.,Andrews, Jennifer E..,...&Young, D. R..(2024).Strong Carbon Features and a Red Early Color in the Underluminous Type Ia SN 2022xkq.ASTROPHYSICAL JOURNAL,960(1).
MLA Pearson, Jeniveve,et al."Strong Carbon Features and a Red Early Color in the Underluminous Type Ia SN 2022xkq".ASTROPHYSICAL JOURNAL 960.1(2024).

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