Corpus ID: 118172177

Observational study of the extremely slow nova V1280 Scorpii

  title={Observational study of the extremely slow nova V1280 Scorpii},
  author={H. Naito and S. Mizoguchi and A. Arai and A. Tajitsu and S. Narusawa and M. Yamanaka and M. Fujii and T. Iijima and K. Kinugasa and M. Kurita and T. Nagayama and H. Yamaoka and K. Sadakane},
  journal={arXiv: Solar and Stellar Astrophysics},
We present multi-color light curves and optical spectra of V1280 Scorpii obtained from 2007 to 2012. It is shown that V1280 Sco is the extremely slow nova and the mass of white dwarf appears to be $\sim$ 0.6 M$\odot$ or lower. Blue-shifted multiple absorption lines of Na {\sc i} D, Ca {\sc ii} HK, and He {\sc i*} are detected on high-resolution spectra. We also discuss that an approach using metastable He absorption lines is useful to investigate structures of nova shells. 

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