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EXPANSION VELOCITY AND SPECTROSCOPIC CLASSIFICATION OF NOVA DELPHINI 2013

  • AZALIAH, RHISA (Astronomy Department, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung) ;
  • MALASAN, HAKIM L. (Astronomy Department, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung) ;
  • HAANS, GABRIELA K. (Astronomy Department, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung) ;
  • AKHYAR, SAEFUL (Astronomy Department, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung)
  • Received : 2014.11.30
  • Accepted : 2015.06.30
  • Published : 2015.09.30
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Abstract

Low resolution spectra of Nova Delphini 2013 (V339 Del) in the optical range have been obtained at Bosscha Observatory, Indonesia during its maximum light (V = 4.3). Spectra were observed from August 16 to 27, 2013. The GAO-ITB RTS 20.3 cm telescope, and SBIG DSS-7 spectrograph and SBIG ST-7 XE as the detector have been employed throughout the observations. The spectra show P-Cygni profiles in Balmer, NaI'D' and Fe II lines, from which we determined shell expansion velocities of $1421.66{\pm}39.18km/s$, $1227.54{\pm}21.57km/s$ and 1402.86 km/s, respectively. Our spectroscopic observations followed the spectral evolution of V339 Del from the pre-maximum phase to early Orion phase. The characteristics of the nova Delphini 2013 resembles those of Fe II-type novae.

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References

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