Photometric and spectroscopic study of flares on Ross 15

doi:10.1088/1674-4527/21/1/7

	Photometric and spectroscopic study of flares on Ross 15
	Bai, Jian-Ying 1,4; Esamdin, Ali 4; Gao, Xing 4; Yan, Yan 2,3; Ren, Juan-Juan 3
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2021
卷号	21 期号:1 页码:7
关键词	stars: flare stars: activity stars: late-type
ISSN号	1674-4527
DOI	10.1088/1674-4527/21/1/7
产权排序	1
英文摘要	We conducted photometric and spectroscopic observations of Ross 15 in order to further study the flare properties of this less observed flare star. A total of 28 B-band flares are detected in 128 hr of photometric observations, leading to a total flare rate of 0.22(-0.04)(+0.04)hr(-1), more accurate than that provided by previous work. We give the energy range of the B-band flare (10(29.5) - 10(31.5) erg) and the flare frequency distribution (FFD) for the star. Within the same energy range, the FFD is lower than that of GJ 1243 (M4) and YZ CMi (M4.5), roughly in the middle of those of three M5-type stars and higher than the average FFDs of spectral types >= M6. We performed, for the first time for Ross 15, simultaneous high-cadence spectroscopic and photometric observations, resulting in detection of the most energetic flare in our sample. The intensity enhancements of the continuum and Balmer lines with significant correlations between them are detected during the flare, which is the same as those of other deeply studied flare stars with similar spectral type.
资助项目	National Natural Science Foundation of China[11873081] ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, CAS
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
WOS记录号	WOS:000616039400001
资助机构	National Natural Science Foundation of China ; Open Project Program of the Key Laboratory of Optical Astronomy, National Astronomical Observatories, CAS
内容类型	期刊论文
源URL	[http://ir.xao.ac.cn/handle/45760611-7/3850]
专题	新疆天文台_光学天文与技术应用研究室
通讯作者	Esamdin, Ali
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, CAS Key Lab Solar Act, Natl Astron Observ, Beijing 100101, Peoples R China 3.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China 4.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
推荐引用方式 GB/T 7714	Bai, Jian-Ying,Esamdin, Ali,Gao, Xing,et al. Photometric and spectroscopic study of flares on Ross 15[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2021,21(1):7.
APA	Bai, Jian-Ying,Esamdin, Ali,Gao, Xing,Yan, Yan,&Ren, Juan-Juan.(2021).Photometric and spectroscopic study of flares on Ross 15.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,21(1),7.
MLA	Bai, Jian-Ying,et al."Photometric and spectroscopic study of flares on Ross 15".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 21.1(2021):7.