The ultraviolet spectrum of the planetary nebula M3-27

1985 ◽  
Vol 97 ◽  
pp. 404 ◽  
Author(s):  
W. A. Feibelman
Keyword(s):  
Planetary Nebula ◽  
Ultraviolet Spectrum

scholarly journals The IUE Ultraviolet Spectrum of PC 11

1993 ◽  
Vol 155 ◽  
pp. 398-398 ◽  
Author(s):  
M. Parthasarathy ◽  
S.R. Pottasch ◽  
J. Clavel
Keyword(s):  
Short Wavelength ◽  
Planetary Nebula ◽  
Significant Variation ◽  
Central Star ◽  
Ultraviolet Spectrum ◽  
Emission Lines ◽  
Symbiotic Star ◽  
Iras Source ◽  
Long Wavelength ◽  
Cold Dust

PC 11 (HD 149427, PK 331-5 1) is classified as a young planetary nebula with strong OIII 4363Å and a Zanstra temperature of TZ = 27000K. It is also classified as (D′ — type) yellow symbiotic star with A — F type companion. It is an IRAS source with detached cold dust with far intrared (IRAS) colours similar to planetary nebulae. The IUE short wavelength (SWP) spectra show emission lines due to OIII] (1661/1666Å). NIII] (1746/1754Å) CIII] (1907/1909Å). The OIII] and NIII] emission lines show significant variation. Variation in the strength of CIII] is not very significant. The strength of OIII] has decreased and NIII] has increased. The long wavelength (LWP) spectrum shows stellar continuum (A-F) and absorption lines due Mg II 2800Å feature. It also show emission lines at 2772Å (?) 3133Å −3140Å (very strong) (OIII, [FeV], 3209Å (He II?) ([FEII]). The variation in the strength of emission line due OIII] and NIII] and the presence of stellar continuum (A-F) suggests that the central star of PC 11 is a binary.

The remarkable ultraviolet spectrum of the planetary nebula Abell 30

1984 ◽  
Vol 277 ◽  
pp. 716 ◽  
Author(s):  
J. P. Harrington ◽  
W. A. Feibelman
Keyword(s):  
Planetary Nebula ◽  
Ultraviolet Spectrum

scholarly journals The rocket-ultraviolet spectrum of the planetary nebula NGC 7027

1975 ◽  
Vol 202 ◽  
pp. 415 ◽  
Author(s):  
R. C. Bohlin ◽  
T. P. Stecher ◽  
P. A. Marionni
Keyword(s):  
Planetary Nebula ◽  
Ultraviolet Spectrum ◽  
Ngc 7027

The rocket-ultraviolet spectrum and models of the planetary nebula NGC 7662

1978 ◽  
Vol 219 ◽  
pp. 575 ◽  
Author(s):  
R. C. Bohlin ◽  
T. P. Stecher ◽  
J. P. Harrington
Keyword(s):  
Planetary Nebula ◽  
Ultraviolet Spectrum ◽  
Ngc 7662

The optical and ultraviolet spectrum of the planetary nebula NGC 2440

1981 ◽  
Vol 248 ◽  
pp. 569 ◽  
Author(s):  
G. A. Shields ◽  
L. H. Aller ◽  
C. D. Keyes ◽  
S. J. Czyzak
Keyword(s):  
Planetary Nebula ◽  
Ultraviolet Spectrum
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