J/A+A/553/A126 Far-UV spectra of PN central stars (Guerrero+, 2013)
Analysis of far-UV data of central stars of planetary nebulae:
occurence and variability of stellar winds.
Guerrero M.A., De Marco O.
<Astron. Astrophys. 553, A126 (2013)>
=2013A&A...553A.126G 2013A&A...553A.126G
ADC_Keywords: Planetary nebulae ; Spectra, ultraviolet
Keywords: line: profiles - stars: winds, outflows -
planetary nebulae: general - ultraviolet: stars
Abstract:
The occurrence of stellar wind in the central star of a planetary
nebula (CSPN) can be revealed by the presence of P Cygni profiles of
high-excitation lines overimposed on its stellar continuum. We have
examined the entire Far-Ultraviolet Spectroscopic Explorer FUSE
archive and merged all useful spectroscopic observations of CSPNe to
produce the highest quality spectra that can be used to assess the
occurrence of stellar winds. Furthermore, the individual spectra of
each CSPN have been compared to search for variability in the P Cygni
profile. P Cygni profiles of high-excitation lines have been found in
44 CSPNe, with a clear correlation between the ionization potential of
the lines and the effective temperature of the star.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
stars.dat 167 44 Sample of CSPNe with P Cygni profile with FUSE
observations (from table1 of the paper)
refs.dat 198 26 References
sp/* . 107 Individual spectra
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See also:
VI/129 : The FUSE Observation Log (FUSE, 1999-2007)
Byte-by-byte Description of file: stars.dat
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Bytes Format Units Label Explanations
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1- 15 A15 --- Name PN Name
17- 31 A15 --- SpType Spectral type (WELS=Weak Emission-Line Star)
32- 34 I3 kK Teff ?=- Effective temperature
36- 38 F3.1 [cm/s2] logg ?=- Surface gravity
40- 45 E6.2 Msun/yr dM/dt ?=- Mass loss
47- 51 A5 --- Ref References, in refs.dat file
53- 71 A19 --- Sp(CIII) Name of CIII (1128-1182Å) spectrum file
73- 91 A19 --- Sp(OVI) Name of OVI (1001-1065Å) spectrum file
93-111 A19 --- Sp(NeVII) Name of NeVII (925-1005Å) spectrum file
113-131 A19 --- Sp(PV) Name of PV (1093-1147Å) spectrum file
133-151 A19 --- Sp(SIV) Name of SIV (1053-1081Å) spectrum file
153-167 A15 --- Sp(SVI) Name of SIV (910-1005Å) spectrum file
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Ref Reference number
4- 22 A19 --- BibCode BibCode
24- 47 A24 --- Aut Author's name
49-198 A150 --- Com Comments
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Byte-by-byte Description of file (#): sp/*
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Bytes Format Units Label Explanations
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1- 11 F11.6 0.1nm lambda [910/1182] Wavelength λ (Å)
13- 23 E11.5 cW/m2/nm Ftot Total flux (in erg/cm2/s/Å)
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Acknowledgements:
Martin A. Guerrero, mar(at)iaa.es
(End) Patricia Vannier [CDS] 15-Mar-2013