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https://ir.lib.ncu.edu.tw/handle/987654321/101377
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| 題名: | OGLE-2013-SN-079: A lonely supernova consistent with a helium shell detonation |
| 作者: | 陳婷琬;Inserra, C.;Sim, S. A.;Wyrzykowski, L.;Smartt, S. J.;Fraser, M.;Nicholl, M.;Shen, K. J.;Jerkstrand, A.;Gal-Yam, A.;Howell, D. A.;Maguire, K.;Mazzali, P.;Valenti, S.;Taubenberger, S.;Benitez-Herrera, S.;Bersier, D.;Blagorodnova, N.;Campbell, H.;Chen, T.-W.;Elias-Rosa, N.;Hillebrandt, W.;Kostrzewa-Rutkowska, Z.;Kozłowski, S.;Kromer, M.;Lyman, J. D.;Polshaw, J.;Röpke, F. K.;Ruiter, A. J.;Smith, K.;Spiro, S.;Sullivan, M.;Yaron, O.;Young, D.;Yuan, F. |
| 貢獻者: | 理學院天文研究所 |
| 關鍵詞: | ABSORPTION SPECTROSCOPY;ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;CARBON MONOXIDE;COLOR;Detonation;HELIUM;INFRARED SPECTRA;Infrared spectroscopy;LUMINOSITY;MASS;NOVAE;RED SHIFT;Spectra;SUPERNOVAE;supernovae: general;supernovae: individual (OGLE-2013-SN-079);Supernovas;surveys;Titanium;WHITE DWARF STARS;white dwarfs |
| 日期: | 2015-01-20 |
| 上傳時間: | 2026-04-21 14:32:06 (UTC+8) |
| 出版者: | IOP Publishing Ltd.;United States |
| 摘要: | 摘要： We present observational data for a peculiar supernova discovered by the OGLE-IV survey and followed by the Public ESO Spectroscopic Survey for Transient Objects. The inferred redshift of z = 0.07 implies an absolute magnitude in the rest-frame I-band of MI ~ -17.6 mag. This places it in the luminosity range between normal Type Ia SNe and novae. Optical and near infrared spectroscopy reveal mostly Ti and Ca lines, and an unusually red color arising from strong depression of flux at rest wavelengths <5000 [Angstrom]. To date, this is the only reported SN showing Ti-dominated spectra. The data are broadly consistent with existing models for the pure detonation of a helium shell around a low-mass CO white dwarf and "double-detonation" models that include a secondary detonation of a CO core following a primary detonation in an overlying helium shell.
出版者： United States
出版日期： 2015-01-20
出處： Astrophysical journal. Letters, 2015-01, Vol.799 (1), p.L2-7
資源來源： Institute of Physics Journals
識別號： ISSN: 2041-8213
識別號： ISSN: 2041-8205
識別號： EISSN: 2041-8213
識別號： DOI: 10.1088/2041-8205/799/1/L2 |
| 顯示於類別: | [天文研究所] 期刊論文
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