Carrington Maps in H i Lyα and Their Relationships with Extreme-ultraviolet and Magnetic-field Maps

doi:10.3847/2041-8213/ad5679

	Carrington Maps in H i Lyα and Their Relationships with Extreme-ultraviolet and Magnetic-field Maps
	Li, Shuting 3,4; Feng, Li 3,4; Ying, Beili 4; Lu, Lei 4; Ji KF(季凯帆)2; Li, Ying 3,4; Shi, Guanglu 3,4; Li, Hui 3,4; Huang, Yu 3,4; Gan, Weiqun 1,4
刊名	ASTROPHYSICAL JOURNAL LETTERS
	2024-07-01
卷号	969 期号:1
ISSN号	2041-8205
DOI	10.3847/2041-8213/ad5679
产权排序	第3完成单位
文献子类	Article
英文摘要	H i Ly alpha emission in the chromosphere and transition region is a key ingredient of the incident radiation to coronal neutral hydrogen for modeling corona Ly alpha emission. The Ly alpha emission distribution across the solar disk can be obtained from a Ly alpha Carrington map. Before the launch of the Advanced Space-based Solar Observatory (ASO-S), such a Ly alpha Carrington map was derived from the Carrington map at He ii 30.4 nm and sometimes is even assumed to be uniform. We construct the first Ly alpha Carrington map based on full-disk Ly alpha images acquired by the Solar Disk Imager (SDI) on board ASO-S and present two versions: the standard one is for a CR, and the other is daily updated. For modeling Ly alpha intensities during eruptions, the Carrington map with incorporated flare region is produced. Furthermore, we evaluate the difference between the Ly alpha Carrington map derived with SDI observations and that synthesized from the 30.4 nm data based on an empirical relationship between Ly alpha and He ii 30.4 nm intensities, particularly extended to flare intensities that have not been investigated before. The average difference of 38% proves the importance of the Ly alpha Carrington map built from observations directly. However, the synthetic Ly alpha Carrington map can be used as an approximation before SDI data are available. The comparison between the SDI Ly alpha Carrington map and the corresponding magnetic field synoptic map indicates that active regions in general are brighter in Ly alpha, while the sunspot umbras with strong magnetic field strength are usually weaker in Ly alpha.
学科主题	天文学 ; 太阳与太阳系
URL标识	查看原文
出版地	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDB0560000]; National Key R&D Program of China[2022YFF0503003 (2022YFF0503000)]; NSFC[11973012]; NSFC[11921003]; NSFC[12233012]; NSFC[12203102]; NSFC[12103090]; NSFC[12373115]; Sino-German Science Center[M-0068]
WOS关键词	SOLAR TELESCOPE LST ; ASO-S MISSION ; DIFFERENTIAL EMISSION MEASURE ; LYMAN ; FLUX ; CORONAGRAPHS ; DIAGNOSTICS
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:001257892500001
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences[XDB0560000] ; National Key R&D Program of China[2022YFF0503003 (2022YFF0503000)] ; NSFC[11973012, 11921003, 12233012, 12203102, 12103090, 12373115] ; Sino-German Science Center[M-0068]
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ynao.ac.cn/handle/114a53/27432]
专题	天文技术实验室
作者单位	1.University of Chinese Academy of Sciences, Nanjing 211135, People's Republic of China 2.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China; 3.School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, People's Republic of China; 4.Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, People's Republic of China; lfeng@pmo.ac.cn;
推荐引用方式 GB/T 7714	Li, Shuting,Feng, Li,Ying, Beili,et al. Carrington Maps in H i Lyα and Their Relationships with Extreme-ultraviolet and Magnetic-field Maps[J]. ASTROPHYSICAL JOURNAL LETTERS,2024,969(1).
APA	Li, Shuting.,Feng, Li.,Ying, Beili.,Lu, Lei.,季凯帆.,...&Gan, Weiqun.(2024).Carrington Maps in H i Lyα and Their Relationships with Extreme-ultraviolet and Magnetic-field Maps.ASTROPHYSICAL JOURNAL LETTERS,969(1).
MLA	Li, Shuting,et al."Carrington Maps in H i Lyα and Their Relationships with Extreme-ultraviolet and Magnetic-field Maps".ASTROPHYSICAL JOURNAL LETTERS 969.1(2024).