Raman Scattered Ne $VII{\lambda}4881$ in the Symbiotic Star V1016 Cygni

  • Lee, Hee-Won (Department of Astronomy and Space Science, Sejong University) ;
  • Heo, Jeong-Eun (Department of Astronomy and Space Science, Sejong University) ;
  • Lee, Byeongcheol (Korea Astronomy and Space Science Institute)
  • 발행 : 2014.04.10

초록

We present the two high resolution spectra of the symbiotic star V1016 Cygni obtained with the Bohyunsan Optical Echelle Spectrograph in 2003 and 2005, from which we note the existence of the broad emission feature at 4881 ${\AA}$. We propose that this broad feature is formed from Raman scattering of Ne $VII{\lambda}973$ by atomic hydrogen. Thus far, the detection of Raman scattered lines by atomic hydrogen is limited to O $VI{\lambda\lambda}1032$, 1038 and He $II{\lambda\lambda}940$, 972 and 1025. We perform Monte Carlo simulations to fit the Raman scattered Ne $VII{\lambda}4881$ to investigate the basic spectroscopic properties concerning Ne $VII{\lambda}973$.

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