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The spectrum of Nova Casssiopeia 1995
Zhu, ZX; Hang, HR
AbstractWe observed the spectrum of Nova Cas 1995 using the 2.16-m telescope (dispersion 50 Angstrom/mm) over the years 1995-1997. The spectra of 1995 had as main characteristic features Fe II and H I emission lines, all showing the P Cygni profile. The spectra of 1996 mainly had emission in H I and He II. The spectra of 1997 showed strong emission in [Fe X], [Fe VII] and [O III], showing that the nova had entered the nebular stage. Using the observed continuum we estimated the effective temperature of the ejected mass as follows: 21300 K on 1995-10-14, 9700 K on 1996-10-26, 10200 K on 1997-12-16. Using the measured line flux the total ejected mass was estimated to be 4.7 x 10(-5) M., and the helium abundance, N-He/N-H = 0.047.
KeywordNova Spectrum Mass Loss
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000085908600012
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Document Type期刊论文
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
2.Chinese Acad Sci, Joint Lab Opt Astron, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Zhu, ZX,Hang, HR. The spectrum of Nova Casssiopeia 1995[J]. CHINESE ASTRONOMY AND ASTROPHYSICS,2000,24(1):71-80.
APA Zhu, ZX,&Hang, HR.(2000).The spectrum of Nova Casssiopeia 1995.CHINESE ASTRONOMY AND ASTROPHYSICS,24(1),71-80.
MLA Zhu, ZX,et al."The spectrum of Nova Casssiopeia 1995".CHINESE ASTRONOMY AND ASTROPHYSICS 24.1(2000):71-80.
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