Photometric and spectroscopic analysis of the Type II SN 2020jfo with a short plateau

被引：10

作者：

Ailawadhi, B. ^{[1
,2
]}

Dastidar, R. ^{[3
,4
]}

Misra, K. ^{[1
]}

Roy, R. ^{[5
,6
]}

Hiramatsu, D. ^{[7
,8
]}

Howell, D. A. ^{[7
,8
]}

Brink, T. G. ^{[9
]}

Zheng, W. ^{[9
]}

Galbany, L. ^{[10
,11
]}

Shahbandeh, M. ^{[12
]}

Arcavi, I ^{[13
,14
]}

Ashall, C. ^{[15
]}

Bostroem, K. A. ^{[16
]}

Burke, J. ^{[7
,8
]}

Chapman, T. ^{[9
]}

Dimple ^{[2
]}

Filippenko, A., V ^{[9
,17
]}

Gangopadhyay, A. ^{[18
]}

Ghosh, A. ^{[1
,19
]}

Hoffman, A. M. ^{[20
,21
]}

Hosseinzadeh, G. ^{[22
]}

Jennings, C. ^{[9
]}

Jha, V. K. ^{[1
,2
]}

Kumar, A. ^{[19
,23
]}

Karamehmetoglu, E. ^{[24
]}

McCully, C.

McGinness, E.

Mueller-Bravo, T. E.

Murakami, Y. S. ^{[9
,25
]}

Pandey, S. B. ^{[1
]}

Pellegrino, C. ^{[7
,8
]}

Piscarreta, L. ^{[10
]}

Rho, J.

Stritzinger, M. ^{[22
]}

Sunseri, J. ^{[9
,21
]}

Van Dyk, S. D.

Yadav, L. ^{[2
]}

机构：

[1] Aryabhatta Res Inst Observat Sci, Naini Tal 263001, India

[2] Deen Dayal Upadhyaya Gorakhpur Univ, Dept Phys, Gorakhpur 273009, India

[3] Millennium Inst Astrophys, Nuncio Monsenor Sotero Sanz 100, Santiago 8320000, Providencia, Chile

[4] Univ Andres Bello, Inst Astrofis, Fernandez Concha 700, Santiago, Chile

[5] Manipal Acad Higher Educ, Manipal Ctr Nat Sci, Ctr Excellence, Manipal 576104, India

[6] Interuniv Ctr Astron & Astrophys, Pune 411007, Maharashtra, India

[7] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

[8] Las Cumbres Observ, 6740 Cortona Dr,Suite 102, Goleta, CA 93117 USA

[9] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA

[10] Inst Space Sci ICE CSIC, Campus UAB,Carrer Can Magrans S-N, E-08193 Barcelona, CA, Spain

[11] Inst Estudis Espacials Catalunya IEEC, Carrerdel Gran Capita 2, E-08034 Barcelona, CA, Spain

[12] Florida State Univ, Dept Phys, 77 Chieftan Way, Tallahassee, FL 32306 USA

[13] Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel

[14] CIFAR, CIFAR Azrieli Global Scholars program, Toronto, ON, Canada

[15] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA

[16] Univ Washington, DiRAC Inst, Dept Astron, Box 351580,UW, Seattle, WA 98195 USA

[17] Univ Calif Berkeley, Miller Inst Basic Res Sci, Berkeley, CA 94720 USA

[18] Hiroshima Univ, Hiroshima Astrophys Sci Ctr, 1-3-1 Kagamiyama, Higashihiroshima, Hiroshima 7398526, Japan

[19] Pandit Ravishankar Shukla Univ, Sch Studies Phys & Astrophys, Chattisgarh 492010, India

[20] Univ Hawaii Manoa, Inst Astron, 2680 Woodlawn Dr, Honolulu, HI 96822 USA

[21] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[22] Univ Arizona, Steward Observ, 933 North Cherry Ave, Tucson, AZ 85721 USA

[23] Univ Warwick, Dept Phys, Gibbet Hill Rd, Coventry CV4 7AL, England

[24] Aarhus Univ, Dept Phys & Astron, Ny Munkegade120, DK-8000 Aarhus, Denmark

[25] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2023年 / 519卷 / 01期

关键词：

techniques: photometric; techniques: spectroscopic; galaxies: individual: M61; supernovae: general; supernovae: individual: SN 2020jfo; OBSERVATORY SUPERNOVA SEARCH; LIGHT CURVES; MASSIVE STARS; FOLLOW-UP; 1ST MONTH; DUST; EVOLUTION; DISTANCE; 2005CS; CONSTRAINTS;

D O I：

10.1093/mnras/stac3234

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present high-cadence photometric and spectroscopic observations of SN 2020jfo in ultraviolet and optical/near-infrared bands starting from similar to 3 to similar to 434 d after the explosion, including the earliest data with the 10.4-m GTC. SN 2020jfo is a hydrogen-rich Type II SN with a relatively short plateau duration (67.0 +/- 0.6 d). When compared to other Type II supernovae (SNe) of similar or shorter plateau lengths, SN 2020jfo exhibits a fainter peak absolute V-band magnitude (M-V = -16.90 +/- 0.34 mag). SN 2020jfo shows significant H alpha absorption in the plateau phase similar to that of typical SNe II. The emission line of stable [Ni ii] lambda 7378, mostly seen in low-luminosity SNe II, is very prominent in the nebular-phase spectra of SN 2020jfo. Using the relative strengths of [Ni ii] lambda 7378 and [Fe ii] lambda 7155, we derive the Ni/Fe production (abundance) ratio of 0.08-0.10, which is similar to 1.5 times the solar value. The progenitor mass of SN 2020jfo from nebular-phase spectral modelling and semi-analytical modelling falls in the range of 12-15 M-circle dot. Furthermore, semi-analytical modelling suggests a massive H envelope in the progenitor of SN 2020jfo, which is unlikely for SNe II having short plateaus.

引用

页码：248 / 270

页数：23

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