Red eminence: The intermediate-luminosity red transient AT 2022fnm

doi:10.1051/0004-6361/202348225

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	Red eminence: The intermediate-luminosity red transient AT 2022fnm
	Moran, S.1; Kotak, R.1; Fraser, M.2; Pastorello, A.3; Cai YZ(蔡永志)4,5,6 ; Valerin, G.7; Mattila, S.1,8; Cappellaro, E.3; Kravtsov, T.1,9; Gutiérrez, C. P.10,11; Elias-Rosa, N.3,11; Reguitti, A.3,12; Lundqvist, P.13; Filippenko, A. V.14; Brink, T. G.14; Wang, X.-F.15,16
发表期刊	ASTRONOMY & ASTROPHYSICS
	2024-08-15
卷号	688
DOI	10.1051/0004-6361/202348225
产权排序	第4完成单位
收录类别	SCI ; EI
关键词	supernovae: general supernovae: individual: AT 2022fnm
摘要	We present results from a five-month-long observing campaign of the unusual transient AT 2022fnm, which displays properties common to both luminous red novae (LRNe) and intermediate-luminosity red transients (ILRTs). Although its photometric evolution is broadly consistent with that of LRNe, no second peak is apparent in its light curve, and its spectral properties are more reminiscent of ILRTs. It has a fairly rapid rise time of 5.3 +/- 1.5 d, reaching a peak absolute magnitude of -12.7 +/- 0.1 (in the ATLAS o band). We find some evidence for circumstellar interaction, and a near-infrared excess becomes apparent at approximately +100 d after discovery. We attribute this to a dust echo. Finally, from an analytical diffusion toy model, we attempted to reproduce the pseudo-bolometric light curve and find that a mass of similar to 4 M circle dot is needed. Overall, the characteristics of AT 2022fnm are consistent with a weak stellar eruption or an explosion reminiscent of low-energy type IIP supernovae, which is compatible with expectations for ILRTs.
资助项目	Magnus Ehrnrooth Foundation; Vilho, Yrjo and Kalle Vaisala Foundation; Research Council of Finland[340613]; Royal Society - Science Foundation Ireland University Research Fellowship; PRIN-INAF 2022 project; National Natural Science Foundation of China (NSFC)[12303054]; National Natural Science Foundation of China (NSFC)[12033003]; National Natural Science Foundation of China (NSFC)[11633002]; Yunnan Fundamental Research Projects[202401AU070063]; International Centre of Supernovae, Yunnan Key Laboratory[202302AN360001]; Academy of Finland[350458]; Secretary of Universities and Research (Government of Catalonia); Horizon 2020 Research and Innovation Programme of the European Union under the Marie Sklodowska-Curie; Beatriu de Pinos programme, from the Spanish Ministerio de Ciencia e Innovacion (MCIN)[2021 BP 00168]; Agencia Estatal de Investigacion (AEI)[PID2020-115253GA-I00]; Programme Unidad de Excelencia Maria de Maeztu[CEX2020-001058-M]; MIUR, PRIN 2017[20179ZF5KS]; Spanish MICINN grant[PID2019-108709GB-I00]; FEDER funds; Swedish Research Council; Christopher R. Redlich Fund; NASA/HST grant from the Space Telescope Science Institute (STScI)[AR-14295]; NASA[NAS5-26555]; NASA[NN12AR55G]; NASA[80NSSC18K0284]; NASA[80NSSC18K1575]; Scholar Programme of Beijing Academy of Science and Technology[DZ:BS202002]; Tencent Xplorer Prize; W. M. Keck Foundation
项目资助者	Magnus Ehrnrooth Foundation ; Vilho, Yrjo and Kalle Vaisala Foundation ; Research Council of Finland[340613] ; Royal Society - Science Foundation Ireland University Research Fellowship ; PRIN-INAF 2022 project ; National Natural Science Foundation of China (NSFC)[12303054, 12033003, 11633002] ; Yunnan Fundamental Research Projects[202401AU070063] ; International Centre of Supernovae, Yunnan Key Laboratory[202302AN360001] ; Academy of Finland[350458] ; Secretary of Universities and Research (Government of Catalonia) ; Horizon 2020 Research and Innovation Programme of the European Union under the Marie Sklodowska-Curie ; Beatriu de Pinos programme, from the Spanish Ministerio de Ciencia e Innovacion (MCIN)[2021 BP 00168] ; Agencia Estatal de Investigacion (AEI)[PID2020-115253GA-I00] ; Programme Unidad de Excelencia Maria de Maeztu[CEX2020-001058-M] ; MIUR, PRIN 2017[20179ZF5KS] ; Spanish MICINN grant[PID2019-108709GB-I00] ; FEDER funds ; Swedish Research Council ; Christopher R. Redlich Fund ; NASA/HST grant from the Space Telescope Science Institute (STScI)[AR-14295] ; NASA[NAS5-26555, NN12AR55G, 80NSSC18K0284, 80NSSC18K1575] ; Scholar Programme of Beijing Academy of Science and Technology[DZ:BS202002] ; Tencent Xplorer Prize ; W. M. Keck Foundation
语种	英语
学科领域	天文学 ; 恒星与银河系
文章类型	Journal article (JA)
出版者	EDP SCIENCES S A
出版地	17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE
ISSN	0004-6361
URL	查看原文
WOS记录号	WOS:001291954700012
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	PROJECT II OBSERVATIONS ; LIGHT CURVES ; NGC 300 ; SPECTRAL EVOLUTION ; ANALYTIC SOLUTIONS ; OPTICAL TRANSIENT ; FORBIDDEN HUGS ; SUPER-NOVAE ; SN 2008S ; DUST
EI入藏号	20243416912677
EI主题词	Supernovae
EI分类号	1302.1.2 - 707 Illuminating Engineering - 741 Light, Optics and Optical Devices
引用统计
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/27561
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.Department of Physics and Astronomy, University of Turku, Vesilinnantie 5, 20500, Finland; 2.School of Physics, University College Dublin, Dublin 4, Belfield, Ireland; 3.INAF-Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, Padova, 35122, Italy; 4.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650216, China; 5.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, 650216, China; 6.International Centre of Supernovae, Yunnan Key Laboratory, Kunming, 650216, China; 7.Dipartimento di Fisica e Astronomia 'G. Galilei', Università Degli Studi di Padova Vicolo Dell'Osservatorio 3, Padova, 35122, Italy; 8.School of Sciences, European University Cyprus, Diogenes Street, Engomi, Nicosia, 1516, Cyprus; 9.European Southern Observatory, Alonso de Córdova 3107, Casilla 19, Santiago, Chile; 10.Institut d'Estudis Espacials de Catalunya (IEEC), Gran Capità, 2-4, Edifici Nexus, Desp. 201, Barcelona, 08034, Spain; 11.Institute of Space Sciences (ICE, CSIC), Campus Uab, Carrer de Can Magrans, s/n, Barcelona, 08193, Spain; 12.INAF-Osservatorio Astronomico di Brera, Via E. Bianchi 46, LC, Merate, 23807, Italy; 13.Oskar Klein Centre, Department of Astronomy, Stockholm University, Albanova University Centre, Stockholm, 106 91, Sweden; 14.Department of Astronomy, University of California, Berkeley, CA, 94720-3411, United States; 15.Physics Department, Tsinghua University, Beijing, 100084, China; 16.Beijing Planetarium, Beijing Academy of Science and Technology, Beijing, 100044, China
推荐引用方式 GB/T 7714	Moran, S.,Kotak, R.,Fraser, M.,et al. Red eminence: The intermediate-luminosity red transient AT 2022fnm[J]. ASTRONOMY & ASTROPHYSICS,2024,688.
APA	Moran, S..,Kotak, R..,Fraser, M..,Pastorello, A..,蔡永志.,...&Wang, X.-F..(2024).Red eminence: The intermediate-luminosity red transient AT 2022fnm.ASTRONOMY & ASTROPHYSICS,688.
MLA	Moran, S.,et al."Red eminence: The intermediate-luminosity red transient AT 2022fnm".ASTRONOMY & ASTROPHYSICS 688(2024).

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