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Optical observations of the broad-lined type Ic supernova SN 2012ap
Liu Zheng1; Zhao Xulin2; Huang Fang1; Wang Xiaofeng2; Zhang Tianmeng3; Chen Juncheng2; Zhang Tongjie1
2015
Source PublicationResearch in Astronomy and Astrophysics
ISSN1674-4527
Volume15Issue:2Pages:225
AbstractThe optical observations of the type Ic supernova (SN Ic) SN 2012ap in NGC 1729 are presented. A comparison with other SNe Ic indicates that SN 2012ap is highly reddened (with E (B -V)(host)similar to 0.8 mag) and may represent one of the most luminous SNe Ic ever observed, with an absolute V-band peak magnitude of similar to -19.3 +/- 0.5 mag after extinction correction. The near-maximum-light spectrum shows wide spectral features that are typical of broad-lined SNe Ic. One interesting feature in the spectrum is the appearance of some narrow absorption features that can be attributed to the diffuse interstellar bands, consistent with the large reddening inferred from the photometric method. Based on the light curves and the spectral data, we estimate that SN 2012ap produced a Ni-56 mass of similar to 0.3 +/- 0.1 M-circle dot in the explosion, with an ejecta mass of 2.4(-0.7)(+0.7) M-circle dot and a kinetic energy of E-K = 1.1(-0.4)(+0.4) x 10(52) erg. The properties of its progenitor are also briefly discussed.
Language英语
Funding Project[National Basic Research Program of China (973 program)] ; [National Natural Science Foundation of China] ; [Foundation of Tsinghua University]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/47271
Collection中国科学院国家天文台
Affiliation1.北京师范大学
2.清华大学
3.中国科学院国家天文台
Recommended Citation
GB/T 7714
Liu Zheng,Zhao Xulin,Huang Fang,et al. Optical observations of the broad-lined type Ic supernova SN 2012ap[J]. Research in Astronomy and Astrophysics,2015,15(2):225.
APA Liu Zheng.,Zhao Xulin.,Huang Fang.,Wang Xiaofeng.,Zhang Tianmeng.,...&Zhang Tongjie.(2015).Optical observations of the broad-lined type Ic supernova SN 2012ap.Research in Astronomy and Astrophysics,15(2),225.
MLA Liu Zheng,et al."Optical observations of the broad-lined type Ic supernova SN 2012ap".Research in Astronomy and Astrophysics 15.2(2015):225.
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